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This seasons weather (spring rains=large canopy + cool summer= mildew conditions) has meant some of you have encountered more powdery mildew than in previous seasons. Now that we have verasion, should you be worried? I called Dr.
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 guidelines. The UC IPM guidelines are an excellent source of information on managing pests.
Mealybugs are tiny insects taxonomically placed in the Order Hemiptera; they are related to aphids and scale insects and are an important group worldwide for the damage they can do to agriculture crops.
Discussing the concept of grapevine capacity. Capacity is the productivity (growth) of the whole vine and includes the vigor-inducing potential of your site, combined with the growth properties of the variety and rootstock.
