- Author: Karey Windbiel-Rojas
- Author: Elaine Lander
Whether you're having a backyard barbecue or enjoying outdoor activities as the weather warms up, it's important to protect yourself from mosquitoes and their bites. Not only can these buzzing insects be a nuisance, certain mosquito species can transmit West Nile virus and other public health threats in California.
Late spring rains followed by warm, sunny days can create the perfect mosquito breeding habitat. Mosquitoes need very little standing water to lay eggs that can hatch in as little as one day. So remember, drain after the rain to fight biting mosquitoes!
What should you do to protect yourself? If...
- Author: Rick Vetter
If you were to ask an audience of more than a few people if they or anyone they know has ever seen or been bitten by a brown recluse spider in California, many hands would be raised. This is quite remarkable because the brown recluse spider has NEVER established breeding populations in California!
The myth of the brown recluse has been generated and sustained by:
- Physician misdiagnoses (where many skin lesions of diverse non-spider origin are blamed on a non-existent spider)
- Media articles that report claims of horrendous bite injury without proof of spider involvement
- Misidentification of harmless brown spiders as brown recluses by the general public as well as "authorities" who lack...
Reading the words “bed bug” in a sentence is enough to make most people's skin crawl! Bed bugs aren't a pleasant topic to discuss, but if you plan on staying at a hotel, hostel, or motel this summer, learning about bed bugs is a “must!”
June 4-10 was Bed Bug Awareness Week, but it was also California Invasive Species Action Week, so here at UC IPM, we were busy posting every day about invasive pests. Bed bugs aren't considered an invasive pest, although bed...
The red imported fire ant, or RIFA for short, is no ordinary red ant. This invasive pest lives up to its name, delivering a sting that causes a burning sensation when its venom is injected into the skin.
People sometimes confuse RIFA with the native southern fire ant. Both can become very agitated when their nest is disturbed but RIFA are more likely to attack. RIFA can bite and sting its victim repeatedly, and its sting is more serious, causing a burning and itching sensation. This is followed by the formation of a white pustule, which can take several weeks to disappear. If not kept clean, the pustules can become infected and may leave permanent scarring. A small...
Unlike mosquitoes, spiders do not seek people in order to bite them. Generally, a spider doesn't try to bite a person unless it has been squeezed, lain on, or similarly provoked to defend itself. Moreover, the jaws of most spiders are so small that the fangs cannot penetrate the skin of an adult person. Sometimes when a spider is disturbed in its web, it may bite instinctively because it mistakenly senses that an insect has been caught.
The severity of a spider bite depends on factors such as the kind of spider, the amount of venom injected, and the age and health of the person bitten. A spider bite might cause no reaction at all, or it might result in varying amounts of itching, redness, stiffness, swelling, and...