Central Sierra
University of California
Central Sierra

Grape Pests & Diseases

The University of California has an extensive Integrated Pest Management (IPM) website with a comprehensive section for grapes, including a year-round IPM program and UC IPM guidelines. UC IPM guidelines are an excellent source of information on managing pests, and include UC's official guidelines for monitoring pests and using pesticides or nonpesticide alternatives for managing insect, mite, nematode, weed, and disease pests.

The UC IPM Pest Management Guidelines for Grape


Adult female Gill's mealybug, <i>Ferrisia gilli,</i> have pink bodies and are covered in white wax.
Adult female Gill's mealybug, Ferrisia gilli, have pink bodies and are covered in white wax.
Adult female grape mealybug, <i>Pseudococcus maritimus.</i>
Adult female grape mealybug, Pseudococcus maritimus.
Adult grape leafhopper, <i>Erythroneura elegantula.</i>
Adult grape leafhopper, Erythroneura elegantula.
Powdery mildew, <i>Uncinula necator,</i> on grape leaf.
Powdery mildew, Uncinula necator, on grape leaf.
Webmaster Email: cecentralsierra@ucdavis.edu