Many parks, recreational areas, and outdoor venues in California are home to yellowjacket wasps (Vespula spp.). Yellowjackets are commonly attracted to human food items, creating a serious nuisance and a potential stinging threat. If found, nests (usually underground) can be effectively treated with targeted insecticide applications (e.g., dusts containing pyrethroids). However, baiting could be a feasible alternative method to suppress yellowjackets over a wide area, especially if nests cannot be located. Currently, only one active ingredient (esfenvalerate) is registered for use within bait in California to control yellowjackets,...
- Author: Karey Windbiel-Rojas
Here are the answers to the traps pictured in yesterday's blog post. How did you do? Let us know in the comments section.
As long as you use integrated pest management when seeking to fend off your pest enemies, you can be assured that Admiral Akbar would be proud.
2. Live catch trap....
Yellowjackets have a well-deserved reputation for being aggressive since they often sting when defending their nests or when they encounter people while out scavenging for food.
This time of year, yellowjacket colony populations are increasing, and people may encounter them more frequently. Some yellowjacket species live in underground nests and can be a problem to people mowing the lawn or to children playing on it. Other kinds of yellowjackets may live in between voids in walls and ceilings of houses, coming into contact with people who pass by.
Sometimes paper wasps are mistaken for yellowjackets, but these insects are much less aggressive and more easily dealt with.
If you have a wasp...
Summer is all about being outdoors and enjoying camping, swimming, playing, and other activities with family and friends. But it's a real drag when pests such as ants, yellowjackets, or mosquitoes ruin the fun.
When you have a pest problem and want to find a solution quickly, it can be helpful to watch a short video that tells you what you can do. In UC IPM's Video Library, you will find over 30 helpful videos on these and other common pests that are active in summer or other times of the year.
1. Ants: Using a Sticky Barrier to Prevent Ants on Trees and Shrubs