Pest Management & Plant Health

If you've been finding more milkweed bugs than monarchs on your milkweed, join the crowd. Monarchs are scarce--at least around Solano and Yolo counties--but milkweed bugs are quite plentiful.

If you're a beekeeper or plan to be a beekeeper, you're aware of Public Enemy No. 1. That would be the varroa mite, Varroa destructor, an eight-legged external parasite that attacks and feeds on honey bees. Those mites can spread viruses and decimate a healthy colony.

They came to learn about honey bees, how to become a beekeeper, and how to plan for their first hive.

If you're a beekeeper, you not only keep bees in your hive, but unfortunately, varroa mites. This major pest of honey bees is considered Public Enemy No. 1 in the beekeeping world.

While typically associated with timber production and arborists, chainsaws are one of the tools available to those tasked with removing non-desirable woody vegetation.

Help for the Home Gardener from the Help Desk of the UC Master Gardener Program of Contra Costa County Client Request: Hi...I am looking for some help. I have a pomegranate tree that I have enjoyed since moving in my home in 2006.

Let's hear it for biocontrol. You've seen lady beetles, aka ladybugs, preying on aphids. But have you seen an assassin bug attack a spotted cucumber beetle? No? How about a crab spider munching on a stink bug? All biocontrol, part of integrated pest management (IPM).

Landscape trees provide welcome shade, fruit, homes for wildlife, and even a place for kids to climb. But if the wood is damaged, disease-causing fungi can infect the tree. A number of fungal diseases decay wood in both tree branches and trunks, weakening and sometimes killing the tree.

The last time we saw a severe blast epidemic was 2011. Since then, we haven't had much blast; in fact, I had not see any blast at all during several years. I don't think 2019 qualifies as a severe blast year, but there is more blast than in the previous few years.

The California Department of Pesticide Regulation has formed a work group to find alternatives to the pesticide chlorpyrifos that will help farmers manage insect pests when a state ban on the chemical goes into effect, reported Kerry Klein on Valley Public Radio.