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Cockroaches passively transport microbes that are potentially dangerous to humans. Cockroach infestations have been shown to be linked with allergic reactions in humans such as asthma. |
COMMON SPIDERS FOR,Altus, and Southwest Oklahoma (SWOK)Fatalities from spider bites are rare but each person's reaction to a spider bite can be different depending on amount of venom injected and the body's reaction to venom. Fiddle Back or Brown Recluse Spider: |
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The black widow is generally considered the most venomous spider native to North America. The bite of the female injects a neurotoxic venom, which commonly gives rise to very severe symptoms. The bite itself is usually similar to a pin prick, but excruciating pain can begin within a few minutes and spreads from the point of the bite to arms, legs, chest, back, and abdomen. Within a few hours symptoms such as chills, vomiting, difficulty in respiration, profuse perspiration, delirium, partial paralysis, violent abdominal cramps, pains, and spasms may result. The pain can be so severe as to lead to frequent diagnosis as appendicitis, colic, or food poisoning. Reports indicate that mortality from black widow bites results in 1% or less of the cases, with very young or very old individuals at the greatest risk. More typically, recovery is complete in 1 to 5 days. In case of a bite the victim should consult a physician immediately. Notice the hourglass in the Black Widow picture below. This photo shows the "underside" of the female. The topside of this spider is solid black, like the male. The male black widow does not inject venom when he bites and he does not have the characteristic red hourglass.
Click to Enlarge Photo
Reference, Oklahoma State University PDF file, by:
Richard Grantham, Entomologist
Russell Wright, Professor of Entomology
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New Fiddleback Spider Pictures