Postharvest

Continue monitoring and treat if needed according to the Cherry Pest Management Guidelines for:

• Mites & mite predators—through August
• Powdery mildew
• Armillaria root rot
• Peachtree borer

Examine any declining trees to determine the cause. Manage according to Cherry Pest Management Guidelines.

Treat for leafhopper (cherry and mountain) vectors of X-disease (Cherry buckskin) from June through October if disease has been found in (or near) the orchard.

• Remove any infected trees as soon as possible after a leafhopper spray.

Collect leaf samples for nutrient analysis June through July.

Prune out wood and promptly destroy brush piles before September to help manage these pests:

• Eutypa
• Cytospora canker and wood-inhabiting fungus
• Shothole borer
• Pacific flatheaded borer

Continue to manage weeds in the orchard:

• Control summer perennials such as field bindweed, bermudagrass, and johnsongrass.
• Apply preemergence spray in fall based on weed surveys (combine with postemergence if needed), targeting dandelion, clovers, and curly dock to limit X-disease.
• Keep tree bases free of vegetation to reduce problems with rodents in winter and peachtree borer in summer.

Seed cover crop in October – avoid using clovers that can host the X-disease pathogen and leafhopper vectors: Berseem, crimson, rose, subterranean, and sweet clovers.

Other pests you may see:

• Cribrate weevils (young trees)
• Cherry slug
• Obliquebanded leafroller