Watch out for these bugs once you start venturing out in the warmer weather
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Watch out for these bugs once you start venturing out in the warmer weather
Our editors and experts handpick every product we feature. We may earn a commission from your purchases.Learn more.

Roughly the size of a paper clip and with the most dangerous venom 15 times stronger than a rattlesnake’s, this black spider can be spotted by the red markings on its belly.
The red markings are in the shape of an hourglass. Black widow spiders can live for 1-3 years in the wild and are often found alone.

With a lifespan of nearly 30 years, tarantulas can grow to almost the size of a personal pizza. Most dangerous tarantulas are afraid of large predators, but if provoked – watch out! Though their venom isn’t deadly, it’s unpleasant and can cause rashes and pain at the bite point.

Mostly found in the Southern and Southwestern portions of the United States, Africanized honeybees often travel in swarms to find a new hive. Most do not randomly attack people or animals unless they feel their new hive is in danger. If you see a swarm of bees or are near a hive, it’s important to move away from the area quickly.

Throughout the world, more people are killed by mosquito-borne illness than any other factor. In the United States, mosquitoes can spread different types of encephalitis and transmit heartworms to domestic animals like dogs and cats.

About 1/2-in. long and brought accidentally by ship from South America, the red fire ant is a robust type of ant that can sting. Found on golf courses, at picnic grounds and at playgrounds, red fire ants are very common.

Wasps usually have a slender, shiny body but they can often look like honeybees. Unlike honeybees, when wasps sting they do not lose their stinger, allowing them to sting repeatedly.

Native to the Midwestern and Southern United States, brown recluse spiders can be deadly to children under the age of 7. Displaying a violin-like shape on their back, these spiders can range in color from brownish-tan to yellow-tan. Most dangerous brown recluse spiders only bite when provoked.

With a crab-like appearance, scorpions are predatory and often come out at night. Scorpions like warm, dry climates and are usually found in deserts.
Take precautions when hiking and camping by keeping shoes, blankets and towels secured indoors. Stings can feel like a honeybee sting with mild swelling or a rash, or may be more serious.

Ticks can be very small and some can carry Lyme disease. Found throughout North America, ticks can attach to exposed skin. After spending time outdoors, it is essential to do a full-body check and remove any ticks right away. Removing a Lyme disease-carrying deer tick within 36 hours can reduce the risk of infection.

Though not poisonous, millipedes secrete venom that can cause allergic reactions in some people. Centipedes also have venom that is not deadly but can be toxic to those allergic to insect venom. Both centipedes and millipedes are wormlike creatures.
While it is difficult to tell if a bug is dangerous just by looking at it, there are some telltale signs. Dangerous bugs can have bright, bold colors, large pincers or stingers, and may act aggressively when threatened. But bugs that carry hazardous diseases might not have these traits. The best defense is to become familiar with the dangerous bugs in your region so you can be prepared.
DIY pest sprays are safe because they are meant for homeowner use and most can be effective at controlling bug populations when used correctly.