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Wednesday 7 June 2017

How to Identify Venomous House Spiders

Author
Shaddie profile image
Shaddie 
How to identify venomous house spiders.
How to identify venomous house spiders. | Source

What and What Not to Be Afraid of

"Oh my God, kill it! KILL IT!"
Outbursts like these are common throughout much of the United States and, indeed, the world, when a spider's cover is blown and it is forced to skitter this way and that along the wall or across the living room carpet to avoid being, as suggested above, speedily smashed.
It is unfortunate that so many of these harmless eight-legged critters have to pay such a price for our unfounded fears and instinctive squishing behaviors, especially since they work so hard to rid our homes of ever creepier (in the author's personal opinion) pests such as silverfish, fleas, bed bugs, gnats, and flies.
I find that the basis for most fears of spiders is the fact that most people don't know the difference between those that are harmful to humans and those that are perfectly capable of coexisting with us peacefully. And so, in the spirit of enlightenment, I have devised a way to help any and all who are curious learn about which spiders pose a danger and which do not.
"Be careful of me. I don't want to bite, but if I do, I can pack quite a punch!"
"Be careful of me. I don't want to bite, but if I do, I can pack quite a punch!"

. Biggest Threats

The leading ladies and gentlemen on this list are of course the ever-beautiful female Latrodectus hesperus (black widow spider) and her renowned accomplice the Loxosceles reclusa (brown recluse spider). The runner-up to and lesser known than these two is Tegenaria agrestis (hobo spider).

Black Widow

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Few spiders are as recognizable as the black widow.Black widows are Nature's very own pest controllers.Black widows are experts at web building, and are extremely helpful in vineyards where they catch tiny insects such as gnats and flies.
Few spiders are as recognizable as the black widow.
Few spiders are as recognizable as the black widow.
Female black widows are perhaps the most easily identifiable spider in human history. The striking red markings on their undersides are a dead giveaway to their species. Whether the red mark is in the shape of an hourglass or a simply a dot, it is safe to assume that any shiny black spider with a bulbous abdomen falls under this category. The males of this species are smaller, shyer, and less venomous than their female counterparts. In fact, there has been much speculation as to whether or not they are more deadly than the common garden spider! Also, they look nothing like their women; they're thin and usually mottled brown or gray.
Black widows, like cockroaches, can be found anywhere in the United States providing there is:
  • A stable source of heat (such as a human dwelling)
  • An ample supply of food (flies, woodlice, other spiders, etc.)
  • Dark places (the space under your bed, in your shoe closet, etc.)
They are more prominent in warmer states because they can breed and catch food outside. Natural enemies of this spider do exist and consist mainly of wasps such as the blue mud dauber and the spider wasp.

Black Widow Bites

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Two red marks are the first sign of a black widow bite. Some spider bites are "dry" and no venom is injected. However, if venom is injected, then the following symptoms are often muscle cramps and spasms near the site of the bite, fever, and nausea. If this happens, see a doctor immediately. Stay calm and apply concentrated heat to the bite to minimize the spread of the venom and alleviate pain.

Brown Recluse

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Brown recluses have a distinctively smooth appearance compared to most other spiders their size.
Brown recluses have a distinctively smooth appearance compared to most other spiders their size.
Brown recluses have a distinctively smooth appearance compared to most other spiders their size.
While the black widow is easily identified by her shiny black exterior, large abdomen, and red shape on the underside, the brown recluse is less easily recognized because of his dull colors. The famed 'violin shape' (the base of the violin starts near the eyes, and the neck of the instruments points down toward the abdomen), which is supposed to be the telltale sign for this species is sadly not confined to brown recluses, nor do all brown recluses possess it. Perhaps the only foolproof way of identifying these tricky arachnids is to count their eyes. It's true! While most spiders have eight eyes, the brown recluse is unique in that it has only six. Also, the abdomen of the recluse spider is devoid of markings, and their legs are smooth with no thick hairs.
Brown recluses have a smaller range than most people think, not straying further west than the Rocky Mountains and rarely venturing north of Nebraska. They prefer quieter, darker, and warmer places to raise their families, so they don't travel with humans to new places as often as black widows do.
Because the brown recluse is so excellent at hiding, there have not been many studies on them outside of research on the effects of their bites. So, the statement that the brown recluse has no natural enemy should be taken with a grain of salt. People who have watched and collected data from the brown recluses in their homes have noted seeing other spiders (particularly the jumping spider) attack and kill them with relative ease.

Brown Recluse Bites

Red itching skin is the first symptom of the bite of a brown recluse spider. The area then develops into a blister, followed by an open sore, which in turn is accompanied by a rash of tiny red dots. Fever and nausea can also occur. If you are bitten by a brown recluse, see a doctor immediately. Stay calm and apply concentrated heat to the bite to minimize the spread of the venom and alleviate pain. The venom of a brown recluse causes necrosis, or the death of tissue, which can take a long time to heal.

Hobo Spider

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Hobo spiders are often confused with giant house spiders or brown recluses.Hobo spiders have 8 eyes, like most spiders, whereas brown recluses have 6.Hobo spiders may not be as dangerous as people once thought.
Hobo spiders are often confused with giant house spiders or brown recluses.
Hobo spiders are often confused with giant house spiders or brown recluses.
The hobo spider is one that more people need to be aware of. They are the real cause of countless so-called "brown recluse bites." The brown recluse is often wrongfully blamed because both species look related at a glance, and their bite patterns and symptoms are similar. But a second look at these critters can identify them in minute's time. Hobo spiders, unlike brown recluses, have a mottled coloration and distinctive 'herringbone' patterns on their abdomen. Their legs are also hairier than those of the brown recluse.
The easiest way to differentiate brown recluses from hobo spiders is by geographic location. The hobo spider was introduced to the Port of Seattle from Europe in the late 1920s, and they have since spread throughout the Northwestern United States and Western Canada. Brown recluses do not live in the Northwest or Canada.
Fortunately for us Northwesterners, the hobo spider has a nice list of natural predators, particularly the crab spiderPardosa wolf spider, and again our friend the jumping spider.

Hobo Spider Bites

Purported hobo spider bites have had symptoms similar to the bites of brown recluse spiders, though no fatalities have been reported. In fact, scientists debate whether this spider's venom can cause the necrosis of human tissue at all. The research is murky because most people who report bites do not capture the spider, so experts have not been able to identify whether the hobo spider is actually associated with dangerous bites. If bitten, it is imperative that the spider be captured or preserved as entirely as possible, and then sent to a lab (many state universities have labs that are appropriate for this) to aid in identification and future research.

Where Dangerous Spiders Are Found

Spider
States and Regions
Black Widow
Usually the southern United States, although they can be found as far north as Canada
Brown Recluse
Primarily Texas, Oklahoma, Nebraska, Missouri, Kansas, Arkansas, and Colorado.
Hobo Spider
Washington, Oregon, Wyoming, Colorado, Utah, Montana, Idaho, Northern California, Western Canada
"Don't hurt me, I'm a friend!"
"Don't hurt me, I'm a friend!"

. Harmless Helpers:

Now that the scary stuff is out of the way, here are a few 'creepy crawlies' that will not only creep up on all of the aforementioned threats, but will also keep the crawling population of fleas, mites, and moths on the down-low. Not to mention they pose no danger to pets, children, or adults in the home. I'm talking about the endearing Salticidae family (jumping spiders), the docile Achaearanea tepidariorum (common house spider), and the gentle-but-giant Tegenaria duellica (giant house spider).

Jumping Spider

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Jumping spiders are very small.Jumping spiders have a charming appearance.Who could no to that cute lil' face?
Jumping spiders are very small.
Jumping spiders are very small. | Source
If you ever see one of these little guys hopping around on your furniture, don't be alarmed. These curious spiders are one of your greatest friends in the pest-ridding business. They are easy to identify because of their unique eye pattern, and inquisitive behavior. If approached, instead of scurrying away like other spiders would, the jumping spider will jump and turn to face the advancer, sometimes even looking up and studying them. Jumping spiders are regarded by many as being 'cute' because of their antics and large eyes.
Jumping spiders have excellent vision, as their giant eyes would suggest, and can in fact see better than any other spider and debatably any other insect in the world. Using their vision, they can perform fast, complicated maneuvers around objects to get to their prey, which they will bite and subdue with their tiny fangs. Because of their speed and eyesight, jumping spiders are capable of besting prey larger and more venomous than themselves, and this author has personally witnessed them snatch flies right out of the air.
There are over 5,000 species of jumping spider in the world, but the most helpful seem to be those of the family Salticus and Phiddipus, such as the zebra spider or bold jumping spider.

Common House Spider

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Round and shiny, the common house spider can be confused for a black widow at first glance.But common house spiders actually look more like mottled bird eggs than a black widow.Common house spiders are excellent web builders.
Round and shiny, the common house spider can be confused for a black widow at first glance.
Round and shiny, the common house spider can be confused for a black widow at first glance. | Source
Unlike the jumping spider, which walks around with an air of adventure, the common house spider prefers to keep a quiet profile in a corner of your garage or basement. Sometimes referred to as 'cobweb spiders,' they are gray to brown in color, with speckling on their abdomen that could be likened to the mottling found on wild bird eggs. Because of their similar size and shape, common house spiders are sometimes mistaken for black widows, but it is important to note the color of the spider before jumping to conclusions. Common house spiders are not black and have no red markings.
They are passive hunters, meaning that they make webs and wait for prey to come to them. They are excellent in keeping the numbers of destructive moths, flies, and mosquitoes down. They will even tackle wasps and yellow jackets, which may be important if you bring firewood into your home since wasps will sometimes hibernate in the lumber). They will be content to live quietly by a window in your attic and pose no threat to humans.

Giant House Spider

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Don't let their size intimidate you. Giant house spiders are very beneficial.Note the hairy legs and the herringbone pattern on the abdomen here. Very different from the smooth appearance of the brown recluse.Giant house spiders grow to be much larger than Hobo spiders.
Don't let their size intimidate you. Giant house spiders are very beneficial.
Don't let their size intimidate you. Giant house spiders are very beneficial.
The giant house spider has a horrible reputation and causes a lot of panic in Northwestern homes because it is easily mistaken for the hobo spider. And while there is no definite way to distinguish the two at a quick glance, giant house spiders tend to be more yellowish in color, with distinctive black stripes on the abdomen. Also, they can reach a leg span of four inches while the hobo spider will typically only span a single modest inch.
Although a giant house spider looks similar to a hobo spider, their risks to humans could not be more different. The giant house spider's venom is harmless (nothing worse than a bumblebee's sting), and they actually kill and eat hobo spiders themselves, making them an excellent addition to any crawlspace, basement, or garage. In fact, they are considered the best deterrent against a hobo spider invasion.
Because of their size, the giant house spider can dispose of a larger numbers of prey, as well as take on much bigger insects than the jumping spider or common house spider could.
Spiders only bite when they are afraid of being killed.
Spiders only bite when they are afraid of being killed.

Precautions to Avoid Spider Bites

None of the spiders listed here bite humans very often. They need their venom to catch their food and do not want to waste it unless they are in danger of being killed. However, sometimes spiders will hide in places they think are safe, but will ultimately lead to an unfortunate interaction between them and humans. Terrified spiders that think they will be crushed can sometimes bite out of defense. Here are some tips you can use to prevent this from happening in your home:
  • Remove your bed skirt. This is good practice to prevent any creepy crawly in the house (ants, silverfish, etc) from cuddling up with you in bed! If the only way for a spider to crawl into your bed is by going up one of the bed's legs—which are usually made of metal, polished wood, or other slick surfaces—it is much less likely to happen.
  • Do not store clothes on the floor. If clothes are left on the floor, vigorously shake them out before putting them on.
  • Bang your shoes on the ground and thoroughly shake out gloves before putting either of them on.
  • When storing things in the basement or garage, seal them so that nothing can get inside. You can do this by putting them in a tied or sealed plastic bag or by taping the corners of cardboard boxes closed.
  • Remove anything that the spiders can crawl under or between. For example, avoid leaving tarps and cardboard on the ground, and move firewood so that it is not stacked near the house.
  • Wear protective clothing such as gloves, closed-toe shoes, and long pants when going into areas spiders may find safe, such as under the house, in crawl spaces, or storage spaces.
  • If you notice there are dangerous spiders in your house, you can set out sticky traps. However, if you have no reason to think that there are any dangerous spiders, it may be better to skip this step, as some spiders like the giant house spider are very beneficial to you.

In Closing:

Hopefully now, with the knowledge of both the dangers and helpers that you may find in your home, your mind will be put at relative ease. As of yet, there is no manmade pesticide or trap more effective against a population of harmful insects than a good old-fashioned family of spiders. They definitely deserve better recognition for the work they do. Welcome to the wonderful world of knowledge; I pray you use it wisely!
For further details log on website :
https://dengarden.com/pest-control/The-Glade

10 Tips to Get Rid of Dust Mites in Your House

Author
Doc Wordinger

Get Rid of House Dust Mites With These 10 Suggestions

Dust mites are the scourge of allergy sufferers everywhere. There are literally millions of them living and feeding inside your bed, carpets, soft furnishings, clothes and anywhere where dust tends to accumulate. Dust mites are tenacious little critters that breed prolifically: getting rid of them is no easy feat.
Over the course of its life, a dust mite can produce up to 200 times its own body weight in waste produce. This is bad news for us humans because dust mite debris can trigger a range of health complaints and allergic reactions such as breathing difficulties, coughing, nasal congestion, itching and watery eyes. They can also have a detrimental effect on your sleep, causing you to wake several times during the night.
Although completely eliminating dusts mites from your home is virtually impossible, there are several precautions you can take to drastically reduce their numbers and neutralize their threat. Let's take a look at ten of the best ways to get rid of dust mites in your house.

# 1. Wash Bedding Regularly

A bed is a warm, dark and humid place making it a perfect habitat for dust mites to prosper. Additionally, the flakes of dead skin which humans shed during the night become ideal food sources for these little pests. It's not a pretty thought.
Fortunately, dust mites don't take too kindly to hot temperatures. Putting your bed sheets through a 140°F (60°C) wash is usually enough to kill them and remove their fecal matter and skin particles. If you have a tumble dryer, put the sheets through a spin-cycle until they are fully dry. The heat from the dryer should take care of any mites that survived the wash. Try to do this on a weekly basis to keep dust mite population to a minimum.
Eeek! It's a good job we can't actually see dust mites.
Eeek! It's a good job we can't actually see dust mites.

# 2. Use an Anti-Allergy Mattress and Mattress Cover

Estimates as to how many dust mites actually live in an average mattress vary wildly from 10'000 to over a million. Whatever the exact figure, one thing is certain: even the cleanest of mattresses are teeming with these microscopic vermin. Sadly, it just isn't possible to make a mattress completely dust mite free. But you can take a few measures to ensure that mite populations are kept low, and their feces and decaying body matter are kept away from your body.
If you don't have one already, consider investing in a hypoallergenic mattress or, for a cheaper alternative, get yourself an anti-allergen mattress protector. A mattress protector acts as a barrier between yourself and the critters in the mattress, preventing your body moisture and skin from dropping into their feeding zone; likewise, the mattress protector stops dust mite allergens from infiltrating your sleeping zone.

# 3. Don't Make Your Bed in the Morning

Here's some great news for anyone who hates making their bed first thing in the morning: don't bother! Instead, give your duvet and bed cover a good airing. This gives the moisture excreted from our bodies time to dry.
Dust mites love moisture. They can't drink water in the normal sense but instead they absorb it through the air. By reducing moisture and humidity within the bed, we're making life difficult for them.

# 4. Get Rid of Feather Pillows and Duvets

Considering that you'll probably spend eight hours each day with your face resting on it, your pillow needs to be soft, comfortable and free of allergens. Traditional feather pillows aren't really suited to the task. Not only are they lumpy and difficult to wash but they also provide an ideal home for dust mites. The same is true of duvets.
Try using hypoallergenic synthetic pillows and duvets instead. They provide a less cosy environment for dust mites and you can blast them through the wash at 140°F (60°C) which is the magic temperature for killing the mites.
To really help drive those mites out of your bed, buy a hypoallergenic pillow and duvet cover as well.
***Update***
There is a growing body of scientific evidence challenging traditional beliefs about the relationship between dust mites and feather/synthetic pillows and duvets.

# 5. Replace Carpets with Hard Flooring

Like beds and soft furnishings, carpets are a paradise for dust mites. Carpets trap dead skin and pet dander which the mites feed on.
Rip up the carpets in your bedroom (or ideally, the whole house) and replace them with hard flooring such as linoleum, laminate or tile. This is one of the most effective ways of instantly getting rid of dust mites. Hard flooring eliminates their most fertile breeding ground.
If getting rid of your carpets is impractical or too costly, try to vacuum regularly - at least two or three times each week. If you suffer from dust allergies, wear a dust mask and open the windows when you vacuum, or ask someone else to do it. Using a vacuum with a High-Efficiency Particulate Arresting (HEPA) filter might help reduce your exposure to some airborne allergens when vacuuming, however, HEPA filters have been proven to be less effective against dust mites.
You can purchase carpet sprays and treatments that get rid of dust mites and other carpet allergens. But in the long term, it might actually work out cheaper to install some hard flooring and throw your mite-infested carpets in the trash.
Source

# 6. Control Temperature and Humidity

Dust mites love living in an environment where the temperature is between 75°F and 80°F (24°C and 27°C) and the relative humidity is around 70% to 80%. Anything outside this range won't necessarily kill them but will push them outside their comfort zone and slow down their breeding.
Set the temperature inside your house to no higher than 70°F (21°C). This is considered a normal and healthy environment for a human, but is very slightly below optimal for a house dust mite. If you can comfortably live at a few degrees below this temperature, you'll not only save money on heating costs but you'll make life tougher for your unwanted house guests.
Another way to control dust mite population through indoor climate control is to monitor the humidity in your house. Unfortunately, dust mites live comfortably in a temperature similar to humans but they actually prefer a higher humidity. Anything lower than 70% relative humidity reduces their reproductive rate. Try to keep relative humidity in your bedroom and home to less than 50%.
You can test humidity in the home with an electronic humidity monitor. If you find that relative humidity levels are greater than 50%, try to get air circulating through your house by using vents and fans and by opening windows often. If this doesn't work, or is too inconvenient, It's also possible to control humidity with air conditioning units and dehumidifiers.

# 7. Keep Pets Out of the Bedroom

Dust mites love pet dander. Make pets sleep outside or in the garage if possible and limit their indoor freedom to one or two rooms. Make an extra effort to keep pets out of the bedroom.

# 8. Get Rid of Curtains, Cushions and Soft Furnishings

Curtains and soft furnishings are a dust mite's paradise. Fabric traps the dust and mositure which they feed on and shields them from potential threats. Each time you drag open the curtains or sit down on a fabric couch, dust mite debris is discharged into the air. If you suffer from dust mite allergies then this is a scenario to avoid.
Get tough with dust mites by:
  • Replacing curtains with easy-to-clean blinds.
  • Throwing away fabric cushions or exchanging them for leather/artificial leather cushions.
  • Trading fabric couches and arm chairs for leather/artificial leather versions.
Perhaps you don't want to part with your soft furnishings? Then you'll need a steam cleaner (see tip # 9.).
Cuddly toys are another dust mite trap. Short of triggering a tantrum in your child, try to reduce cuddly toys on display in your house. If that beloved teddy bear really has to stay, give it a regular airing. Every so often, stick it in a plastic bag and place in the freezer for 24 hours. This will kill the dust mites.

# 9. Use a Steam Cleaner

Steam cleaners are a great way to clean items and objects that aren't suitable for a washing machine. You can use them on carpets, curtains, cushions, kitchen/bathroom surfaces and a thousand other places. The steam kills bacteria, dissolves dirt and yes, kills dust mites.

# 10. Clean Regularly

This might seem like an obvious tip but you should never underestimate the power of dust mites to colonize and breed in your home. With the average human shedding enough dead skin each and every day to feed one million of these pesky critters, maintaining a frequent cleaning schedule is vital.
Make a note of all the places in your home where dust tends to accumulate and wipe these areas several times a week with a damp cloth or a microfiber duster - basically something that actually picks up and contains the dust rather than simply moving it about.

What are YOUR most effective methods for getting rid of dust mites?

Please share your suggestions and tips in the comments section below.
For further details log on website :
https://dengarden.com/pest-control/How-to-Get-Rid-of-Dust-Mites-in-Your-House

How to Get Rid of Cockroaches

Author
vojin lm profile image
vojin lm 

What are Cockroaches?

Cockroaches (or simply "roaches") are insects of the order Blattaria. There are about 4,500 species of cockroach, of which 30 species are associated with human habitations and about four species are well known as pests.
Cockroaches live in groups and are attracted to humidity, warmth and darkness, and are common in bathrooms, kitchens, dining rooms and sometimes bedrooms. Cockroaches secrete a pheromone (an attractant chemical) in their feces, which attracts other cockroaches.
Egg cases (Oothecae) of some species of cockroaches can be found cemented to and/or dropped inside kitchen cabinets, behind refrigerators, and under or behind stoves. Though not all types of cockroaches drop their egg cases, empty shells of egg cases are an indicator of their presence.
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What do Cockroaches Feed On?

Cockroaches feed on a wide variety of food (grease, crumbs, pet food, wax, gum, left over food in empty food cans etc.). They also eat paper if it has glue on it, and some will feed on soap bars.
Cockroaches can withstand long periods of starvation and can live for many days without water.
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Do Cockroaches Transmit Disease?

Cockroaches are scavengers. While walking on spoiled food in garbage containers, they pick up various bacterial organisms on their legs that they can later deposit on uncovered food.
Cockroaches themselves are not implicated in the transmission of any diseases. However, many disease-causing organisms can grow and multiply in their guts and can then be deposited on silverware, plates etc. during defecation. For example, cockroaches can pick up disease-causing bacteria like Salmonella on their legs and later deposit them on foods and cause food poisoning.
People continuously exposed to dust containing cockroach feces and crushed body parts become sensitized and may show allergic reaction and asthma after repeated exposure to such dust.

Cockroach Myths

Contrary to popular belief, cockroaches are not afraid of light. Although most species do prefer darkness, some are actually attracted to light and can be found gathering near windows or on television screens at night. Most of these nocturnal insects will scatter when a light is shone upon them. However, this reaction is much more influenced by their fear of humans than their distaste for light.
Gruesome urban legends concerning the development of immature cockroaches within human wounds or fast foods are unfounded, as is the belief that cockroaches aggressively consume human fingernails and toenails. Cockroaches develop their populations in moist, warm areas inside and out but do not use human bodies as hosts. They may bite in the event of severe infestation and lack of other food sources, but this is also rare. Cockroaches prefer to feed on decaying organic matter and inanimate, starchy foods such as glue and wallpaper.

Cockroach Identification

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American Cockroach

Periplaneta americana

They are reddish-brown with a yellow figure eight marking in front. Very aggressive. Prefers warm, damp areas. More likely to be seen in daytime and outdoors than other species.
They lay egg cases containing approximately 14 eggs and hide them in cracks or crevices. Nymphs emerge one to two months after the eggs are laid. After hatching, they undergo 13 molts over the duration of 6-12 months before becoming adults.
Females can produce an egg case in about one week. Therefore, from 12-24 cases are produced in the warm months (June to August). Adults commonly live more than one year, which gives these cockroaches a life span of nearly two years. They can be found in areas where foods are prepared or stored. They prefer areas with high temperature and humidity, such as boiler rooms, near pipes and water heaters in basements, and outside in sewers and crawl spaces. This species is especially attracted to fermented foods and beer.
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German Cockroach

Blattella germanica

Most common cockroach found in and around apartments, homes, supermarkets and restaurants. German cockroaches are brown and have two dark brown lines on the sides of their anterior shield. Winged adults are about 1/2" in length. Wingless immature German cockroaches are much smaller and variable in size.
Females produce egg cases that look like beans or brown capsules. Each egg case contains 30-40 eggs. The female carries the egg case in her body and it partially protrudes from her posterior end. Females carry their egg cases in this manner for three weeks, after which they drop them in hidden, protected areas one day before the eggs hatch. Young (nymphs) molt six to seven times before becoming adults. It takes them about 45-60 days from egg hatching to become adults. Adults emerge fully-winged and are ready to mate and develop eggs. Females lays four to eight egg capsules in their lifetimes and mother at least 240-300 young cockroaches.
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Brown-Banded Cockroach

Supella longipalpis

Nocturnal; can fly. They may be found throughout any structure, but prefer dry, warm areas, high locations and inside furniture. Brown-banded cockroaches are larger than German cockroaches (slightly longer than 1/2") and have a light-colored band at the front of their wings. Males are light brown and longer than the oval-shaped, dark brown females. They eat almost anything and spend most of the day hiding in crevices and cracks and come out at night to feed.
Females do not carry their egg cases (13-18 eggs/egg case) in their bodies. Instead, they glue them in areas that are high (eye level), as well as under furniture, drawers, dining tables and wall voids, etc. Females live for about six months and lay 13-14 egg cases. At room temperature, eggs hatch after 50 days and young cockroaches (nymphs) molt six to eight times. Their growth is slow and development from egg-hatching to adult takes five to six months. They require less water for their survival than German cockroaches. Brown-banded cockroaches are also good flyers.
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Oriental Cockroaches

Blatta orientalis

The Oriental cockroach is less common than either the German or brown banded cockroach and prefers very wet environments. You will often find the Oriental cockroach feeding on decaying food, in garbage containers, and anywhere else food has been dropped. These particular roaches are considered the perfect vector for food borne illnesses because of their appreciation for rotting food or leftover scraps, rather than starchy foods and sugars. Because of the Oriental cockroach's affinity for sewers, drains, refrigerators, basements, cellars, and any other cool, moist environment, your best option for comprehensive roach control is to keep your home warm and dry. A dehumidifier set to high in a basement or on the first floor of your home will help take much of the moisture out of the air, leaving the floors and other surfaces dry enough to dust with boric acid as a secondary precaution. You should replace all garbage containers with sealable bins, take out the trash regularly, and avoid leaving scraps of food or compost heaps near your home.
Females will produce an average of eight capsules. Egg capsules contain 16 eggs. Nymphs go through seven molts before becoming adults in about a year. Adults can live up to six months.

Cockroach Amazing Facts

Most cockroaches live for up to a year and in that year a female roach can give birth to as many as 400 new roaches.
Roaches can swim and hold their breath for 40 minutes.
It is said that in the event of a nuclear bomb, cockroaches would be the only thing to survive.
A cockroach can live for up to one week without its head!

Cockroach Behavior

Cockroaches leave chemical trails in their feces as well as emitting airborne pheromones for swarming and mating. Other cockroaches will follow these trails to discover sources of food and water, and also discover where other cockroaches are hiding.
Research has shown that group-based decision-making is responsible for complex behavior such as resource allocation. In a study where 50 cockroaches were placed in a dish with three shelters with a capacity for 40 insects in each, the insects arranged themselves in two shelters with 25 insects in each, leaving the third shelter empty. When the capacity of the shelters was increased to more than 50 insects per shelter, all of the cockroaches arranged themselves in one shelter. Researchers found a balance between cooperation and competition exists in group decision-making behavior found in cockroaches. The models used in this research can also explain the group dynamics of other insects and animals.
Cockroaches are mainly nocturnal and will run away when exposed to light. A peculiar exception is the Asian cockroach, which is attracted to light. Another study tested the hypothesis that cockroaches use just two pieces of information to decide where to go under those conditions: how dark it is and how many other cockroaches there are. The study conducted by José Halloy and colleagues at the Free University of Brussels and other European institutions created a set of tiny robots that appear to the roaches as other roaches and can thus alter the roaches' perception of critical mass. The robots were also specially scented so that they would be accepted by the real roaches.
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How Can I Control Cockroach Infestation In My Home?

The key to prevent cockroach infestation indoors is sanitation both in and around the house. Empty garbage daily and keep the lid tightly closed at all times. Do not accumulate empty soda cans, beer bottles, food cans and especially not in brown paper bags and cardboard boxes inside the house. Tape openings around pipes under the kitchen and bathroom sinks to prevent infestation from neighboring apartments. To prevent the entrance of cockroaches into homes: eliminate potential habitat areas outside the houses; seal cracks; and install screens on vents, windows and doors.

How to Keep Cockroaches Out of the House

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How to Get Rid of Roaches

Cockroach baits are a safe way to control roach infestation inside the home. Place cockroach baits under the refrigerator, behind and under the stove, and in the basement. Baits contain slow-acting poison that kills the cockroaches that eat it. A poisoned cockroach then usually salivates or defecates in the nest area, depositing poison that can kill other cockroaches.
Boric acid is used to control cockroaches, but its proper placement and use is essential to ensure its effectiveness. It can be purchased as boric acid insecticide formulations from hardware and grocery stores. The insecticide formulation packaged in plastic, squeezable bottles with narrow nozzles is the safest and easiest to use. Boric acid should be applied as a very thin layer of powder that the cockroaches cannot distinguish from dust. Apply it under and behind refrigerators, stoves, dishwashers, washing machines, cabinets, areas where plumbing pipes enter the floor, under sinks, etc. Do not apply it in areas where you prepare and/or store foods. Boric acid is a poison, so you should always store and apply it properly, especially if you have young children. In such situations, it may be better for you to use a licensed exterminator for cockroach control.

How to Kill German Roaches

How to Make Killer Cockroach Bait

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How to Make Killer Cockroach Bait

[STEP 1]
Finely dice 1/2 a small onion (about 3 Tbsp.) and place into a small mixing bowl.
[STEP 2]
Add shortening or lard, sugar, and boric acid to the bowl with the onions.
[STEP 3]
Using a metal fork, mix the ingredients together very well.
[STEP 4]
Use a metal spoon to scoop up about 1/2 to 1 tsp. of this mixture, place on an old jar lid or small dish. You should be able to get 4 or 5 of these bait dishes from a single batch of this recipe.
[STEP 5]
Place a bait dish in an area where you frequently see cockroaches. Make sure it is well out of reach of children and pets. I put it inside cupboards, tucked away in a far corner, in the kitchen, bathroom, and garage.
[STEP 6]
Replenish the bait dishes at least monthly.
Bait stations, gels containing hydramethylnon or fipronil, as well as boric acid powder, are toxic to cockroaches.
Sprinkle a little of this around your door, behind your stove and fridge, behind the couch, etc. As long as it's dry and doesn't get damp or vacuumed up, it keeps working. It's the absolute best for getting rid of the roaches. They hate the stuff, and it will kill an entire colony because they get it on them, then transfer it to the others.
My great grand parents, grandparents, parents, and I use boric acid. Anytime we start seeing roaches we dust a little around and they are gone! When I say we dust a little, I mean a little. Hold the bottle sideways, shake the powder up so it's at the nozzle but not clogging it up, and squeeze the bottle. If you got the powder in the right place, it will poof and billow out in a little cloud. That's all you need. A liter-size bottle of this stuff can last a lifetime! You'll never again call the exterminator because of roaches!
For further details log on website :
https://dengarden.com/pest-control/how-to-get-rid-of-cockroaches-2

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