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Common house spiders will bite humans only in self-defense, when grabbed and squeezed. [citation needed] The species' synanthropic habits, however, increase the risk of human bites. [2] Common house spiders possess poor vision and cannot detect any movement more than three to four inches away. If cornered, they will feign death as last resort.
Remove firewood, bricks, boards, tarps, or vegetation up against the house, which shelters insects that provide food for spiders, says Gray. Make sure to wear gloves and long pants and sleeves ...
“The majority of the spiders cause us no harm and are predators of pests,” says entomologist Roberto M. Pereira, Ph.D., an insect research scientist with the University of Florida. Translation ...
An entomologist explains how to get rid of spiders indoors and outdoors, plus how to identify two dangerous species: black widow and brown recluse spiders.
They often transmit serious viral diseases between plants. [28] Galls on cherry caused by a mite, Eriophyes cerasicrumena. The mites that cause most trouble in the field are the spider mites. These are less than 1 mm (0.04 in) in diameter, can be very numerous, and thrive in hot, dry conditions.
Vernacular terms to describe diseases caused by mites include scab, mange, and scabies. Mites and ticks have substantially different biology from, and are classed separately from, insects (the class Insecta). Mites of domestic animals cause important types of skin disease, and some mites infest other organs. Diagnosis of mite infestations can ...
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Companion animals such as cats, dogs, and horses, if not vaccinated, can catch serious viral infections. Canine parvovirus 2 is caused by a small DNA virus, and infections are often fatal in pups. [12] The emergence of the parvovirus in the 1970s was the most significant in the history of infectious diseases.