Get totally bugged out in Santa Rosa on Wednesday during Sonoma County Grape Day, featuring presentations on a range of pests and diseases that threaten crops. Topics to be covered include the ...

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 ...

No treatment for deadly grapevine red blotch disease 4-year grant will allow study of disease spread, economic impact May be more than one vector of red blotch University of California, Davis, ...

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 ...

Grape growers will pay about $2.50 more an acre to keep vine pests and disease from taking hold in Napa County vineyards. The Napa County Board of Supervisors passed an increase in an assessment ...

A coalition has been launched to persuade California grape growers to vote to continue their assessment on their crop that has been in place since 2001. A coalition has been launched to persuade ...

Pierce’s disease is a longstanding disease of grapevines. It is bacterial in origin, caused by the species Xylella fastidiosa. Infection leads to yellowing and browning of grapevine leaves. After a ...

State officials are trying to learn whether the recent discovery of a dozen glassy-winged sharpshooters here represents a major infestation. The first glassy-winged sharpshooters, a tiny, voracious ...

Agricultural researchers have launched a four-year study to determine whether a voracious bug that has wreaked havoc on California’s wine industry could also be harming the state’s citrus groves.

In a recent study, scientists detected infection in cabernet sauvignon grapevines before it was visible to the human eye, according to a California Institute of Technology news release. The grape ...