Q: Although I was able to control the grape leaf skeletonizer all summer, I came back from a three week trip with 99 percent of the leaves stripped and dried up. The grapes were picked in August and ...

Q: The leaves of my grapevines are being chewed up by a funny-looking caterpillar that I’ve never noticed before. I’m embarrassed for anyone to see how bad the vines look. How should I fight this ...

Q: Can you tell me what is wrong with the leaves on my Thompson seedless grape vine ? Are there grape leaf miners? What is the best pesticide to use to control these pests? A: I really did not see too ...

NAPA (CBS SF/BCN) -- Living up to its name, the discovery of a voracious Western grapeleaf skeletonizer moth in a Napa County vineyard has growers and agricultural officials on edge. The moth can ...

Q: A few years ago, we lost most of our grapevines to grapeleaf skeletonizers. Is there some way to prevent this from happening again? I would prefer an organic solution, if possible. The western ...

An unwelcome guest was found creeping among Napa County vines this month. On May 12, Jesse Guild, an insect trapper in the area, was checking traps in the Pope Valley when he found a western grapeleaf ...

Authorities in Napa County are sounding the alarm about a moth known to cause “significant” damage to grapevines after an insect trapper discovered it earlier this month and reported it to the ...