Pear rust mite
and can lead to severe fruit russeting and leaf bronzing. This directly reduces fresh-market fruit quality and can downgrade a premium crop to processing [...] and at the base of young twigs. Spring development As buds begin to open, mites migrate to young leaves and shoots, where they feed, reproduce rapidly, and [...] little as 1-2 weeks, allowing several generations to develop throughout the growing season. Populations increase most rapidly under warm, dry conditions (above