- Author: Lauren Fordyce
![Information on the pesticide active ingredient neem oil. From the UC IPM Pesticide Active Ingredient Database.](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/106594small.png)
The University of California Statewide IPM Program (UC IPM) has an exciting, newly updated resource to help you better understand pesticide active ingredients and the risks different active ingredients pose to people and the environment.
The Pesticide Active Ingredient Database is designed for urban audiences including the general public, Master Gardeners, nursery and garden center staff, pest control operators, landscapers, and more. The active ingredients included in this database can be found in many commonly available pesticide products in California. The database contains a variety of pesticide types, including...
- Author: Tunyalee A. Martin
- Author: Cheryl A. Wilen
- Author: Thomas Getts
- Author: Jutta Burger, Cal-IPC
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![Santa Monica Mountains BAR team holding tools to manage invasive weeds using non-chemical approaches.](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/83797small.png)
California has abundant wildlands — forests, rangeland, open areas, wildlife refuges and national, state, and local parks — that need protection from invasive plants. Invasive plants affect all Californians by increasing wildfire potential; reducing water resources; accelerating erosion and flooding; threatening wildlife; degrading range, crop and timberland; and diminishing outdoor recreation opportunities. According to the California Invasive Plant Council (Cal-IPC), more than 200 identified plant species harm California's wildlands.
Cal-IPC and the University of California...
- Author: Dong-Hwan Choe
- Author: Kathleen Campbell
- Author: Michael K Rust
- Posted by: Elaine Lander
![Figure 1. Western yellowjacket baiting with the hydrogel bait. After a short handling behavior on the bait, yellowjackets flew away with a small piece of the hydrogel bait. (Credit: DH Choe)](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/68535small.jpg)
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,...