Grapeleaf skeletonizer and grape flea beetle were found in the orchard during the last couple of days. These two pests damage grape leaves but few other plants. The skeletonizer is a bluish-black moth ...

Question: We bought a small vineyard and have noticed that the whitish-yellow speckles and blotches on our grapevine leaves are looking worse and worse. Barb B., Placitas Answer: I had the pleasure of ...

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 ...

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 ...

Grape phylloxera, or Daktulosphaira vitifoliae, is an aphidlike insect that attacks grapevines with devastating effects. In Colorado, where wine is an estimated US$3.9 billion dollar industry, ...

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 ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Charlotte Oliver, Colorado State University (THE CONVERSATION) Grape phylloxera, or ...