Peach Silver Mite
Hosts: nectarine, peach
Biology: These are microscopic mites called eriophyid mites, related to blister and rust mites. They overwinter as females within the tree and move to leaves after budbreak.
Symptoms: Heavy feeding causes “silvering” of leaves, reduced fruit size, and premature fruit drop.
Monitoring: Because these mites are so small, they are difficult to see with a hand lens, which makes monitoring for the mites difficult. Starting in mid summer, check the leaves for the silvering symptom.
Treatment Threshold: No threshold determined.
Degree Day Model: None
Management Considerations: Moderate populations are a good food source for predatory mites, especially early in the season.