Insect and Mite Pests in Pennsylvania

This section was designed to collate information from selected, high-quality publications and from our own knowledge. It contains information compiled from several sources listed at the end of this guide including research and extension publications from universities in most apple-growing states. The reader who desires further information on these pests is referred to this literature list.

Pests are organized alphabetically rather than by crop as in previous versions of this guide. "Description and life cycle" and "Monitoring and management" sections are included for each pest. Life cycles are based on a "normal" year in south-central Pennsylvania. When dates are given, growers should make appropriate adjustments based on the difference in growing season for their region of the state. When the pest life cycle is based on the stage of the trees, generally no adjustments need to be made. The "Monitoring and management" section is subdivided for some pests. These divisions include "Monitoring," "Cultural management," and "Chemical management."



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