tarantulas

May 5, 2010 by  

Tarantulas

There are about 30 different kinds of tarantulas in the U.S. Most are found in the southern states. The bite of a tarantula is painful but not dangerous. Some species have the ability to shoot hairs as a defense mechanism the hairs can be irritating. Tarantulas build burrows in the ground and then ambush prey. They will feed on any kind of insect or even small rodents.

In Iowa, these are not a realistic pest to have to deal with. If any are found it would be from a released pet or pet shop. Tarantulas are beneficial spiders in areas where they are found. Adults have been reported to live for two years or more

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wolf spiders

May 4, 2010 by  

Wolf Spiders

There are about 100 species of wolf spider in the U.S. They can be intimidating because of the large sizes they can reach, up to 35mm. usually black in color; they are also brown and spotted. Wolf spiders hunt large insects and run quite fast on the ground. They have burrows in the ground and usually leave at night to hunt prey.

            Wolf spiders can be found frequently indoors and can bite humans. They also help keep general insect numbers in check. Wood piles, underneath stones and rocks are good breeding grounds for the spiders. The large, hairy appearance is usually the worst thing about these spiders. Wolf spiders are active in day and night

sac spiders

May 3, 2010 by  

Sac spiders

Sac spiders are yellow in color and build a sac like structure where they hide in the daytime. There are only two species of sac spiders in the U.S. but it is thought that they are responsible for very high percentage of spider bites inside homes. It is not known if the bites can become serious. They are about 4-10 mm in size.

            Bites are generally when the spider is disturbed in bedding or clothing but it is thought that they will also bite when unprovoked. They will be found in corners of ceilings and walls of basements and all over the house. Sac spiders are a nuisance and should be treated with insecticides when large numbers are present in homes. They will be found outdoors and indoors throughout the season

Jumping Spiders

May 2, 2010 by  

Jumping Spiders

This spider gets its name from the fact that they can jump to get to their prey. They are small about 4-10 mm. Jumping spiders have large eyes and a “fuzzy” appearance. Some have red on their back which can be mistaken for black widow markings. They are harmless to humans and can be found indoors.

            Jumping spiders do not catch prey in webs but will have small webs for protection and escape. They are unusual from other spiders in that they will be quite active during the day and love warm, sunny days. They can jump up to 20 times their body length. They can be found on cement porches, woodpiles, fences and old wood. Control is obtained through spraying

house spiders

May 1, 2010 by  

House Spiders

House spiders are found all over the U.S. and the world. They are the most prevalent spider in homes and structures. The webs can become a nuisance if not removed on a regular basis. They are about 5-8mm in size and are brown or black colored.

            House spiders prefer dark, moist areas with high numbers of other insects. They can be controlled with spraying and removal of webs and eggs. They are harmless to people but rather a housekeeping nuisance

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