Monday, January 25, 2016

Boxelder bugs

During the winter (if you can call the weather we're having in Texas winter....), people may have the opportunity to see boxelder bugs emerge out of their overwintering sites on warm, sunny days.  As they can show up all of a sudden in somewhat large numbers, it can be startling.

Boxelder bugs are dark brownish-black insects with reddish-orange markings around the edges of the thorax and wings.  The bugs are about 1/2 an inch long as an adult.  Nymphs, or immatures, look similar to adults but are smaller and lack fully developed wings.  Since the wings are not fully developed on immature stages, the red abdomen shows through.

While boxelder bugs typically do not cause damage to the landscape or structure, they may become a nuisance in and around homes from fall until spring.  In the fall, adults and nymphs may gather in large numbers to move to overwintering areas.  Boxelder bugs spend the winter in cracks and crevices in walls, around door and window casings, tree holes and in debris on the ground.  Sometimes they will try to move indoors to overwinter.  On warm days from fall until spring, boxelder bugs emerge from their overwintering location to warm themselves in the sun.

Boxelder bugs feed primarily on the seed pods of female boxelder trees, but occasionally feed on other trees such as plum, cherry, apple, ash and maple.  The insects pierce plant tissue with their mouthparts and suck juice from the plant.  Even though the insects feed on plant juices, they usually do not cause damage to the tree.

Removing female boxelder trees from the area may solve problems with large, repeated infestation of boxelder bugs.  Hiding places can also be reduced or eliminated by removing debris such as boards, leaves and rocks from the area as well as sealing cracks and crevices around the home with sealant.  If chemical treatment is desired, treat overwintering areas with chemicals containing active ingredients such as pyrethrins, cyfluthrin, bifenthrin, carbaryl or acephate.

Friday, January 8, 2016

2016 All Bugs Good and Bad Webinar Series- FREE!

Please join in for the 2016 All Bugs Good and Bad Webinar Series.  This webinar series provides information about good and bad insects.  Webinars are free and open to everyone.   We will discuss how you can help pollinators and other good insects by using pesticides properly.  We will also talk about how to control insects we think of as bad, like fire ants, vegetable bugs, a new invasive fruit fly, and cockroaches. We will even have a webinar about snakes, although they're not really insects but can be a pest or a beneficial, depending on how you look at them.  

Webinars will be on the first Friday of each month at 1 p.m. Central time.  The webinars are brought to you by the following eXtension Communities of Practice: Imported Fire Ants, and Urban IPM; and by the Alabama Cooperative Extension System, the Texas A&M AgriLife Extension Service,  and the University of Georgia Center for Urban Agriculture.

The first webinar of the year will be on February 5, titled "Don't Let the Insects Eat Your Vegetables" and presented by Ayanava Majumdar, Extension Specialist with Alabama Cooperative Extension System.