Pest Management & Plant Health

The glassy-winged sharpshooter is a large leafhopper that can transmit several important, often fatal, plant diseases in California. This includes Pierce's disease of grape, alfalfa dwarf, almond leaf scorch, and mulberry leaf scorch.

If you missed UC Davis distinguished professor James R. Carey's well-attended seminar on "California's Fruit Fly Invasion: A 70-Year Struggle Nears Critical Mass," it's now online on YouTube.

Hydrilla (Hydrilla verticillata) is an invasive, aquatic weed that can be found in many slow-moving fresh water bodies in California. The plant forms large mats that can crowd out native plants, restrict water flow, and interfere with boating and fishing.

Aedes mosquitoes can transmit some of the most debilitating and deadly mosquito-borne pathogens to humans, such as Zika virus, dengue virus, chikungunya virus, and yellow fever virus. One Aedes species is also capable of transmitting heartworm to dogs.

The California Department of Pesticide Regulation (DPR) has approved the herbicide Rely 280 (glufosinate-ammonium) for use in avocado groves in California. Rely 280 is a post-emergence broad-spectrum herbicide for use against broadleaf and grassy weeds.

Help increase public awareness of invasive species and encourage participation in the ongoing fight against invasive species by celebrating California Invasive Species Action Week (CISAW) June 1- 9, 2024.

During the initial throes of the Mediterranean fruit fly invasion in California, protesters disagreeing with the California Department of Food and Agriculture's eradication procedures and policies used to sing the catchy tune, "There Ain't No Bugs on Me," the work of Jerry Garcia and David Grisman.

I received several calls and comments about issues with tadpole shrimp this spring. While this pest is well known to growers and PCAs, it can still be difficult to manage during planting time. Mistiming of insecticide application can result in shrimp damage.

A noted authority on California's tropical fruit fly invasion says the state is in "crisis mode." "It's really serious," says UC Davis distinguished professor James R. Carey, a noted authority on the invasion of tropical fruit flies.

In this blog article we answer some frequently asked questions about moles, voles, and gophers and their management. How can I tell if I have moles, voles, gophers, or something else? Moles: look for circular or volcano-shaped mounds with the plug in the middle, or a plug may not be apparent.