Agriculture: Prune Pest Management Guidelines

Bloom

This year-round IPM program covers the major pests of prune in California.

Bloom (green tip to petal fall)

What should you be doing during this time?

Mow ground cover down to a maximum height of 2 inches.

Monitor success of dormant weed management program:

  • Note plants escaping treatment and their location in the field.
  • Pay particular attention to plants escaping control with glyphosate, which might be an indication of resistance.

Treat orchards where brown rot is a chronic problem; monitor weather to determine the need for additional treatments.

Monitor San Jose scale:

Monitor peach twig borer larvae:

  • Time bloom treatments according to the prune Pest Management Guidelines.
  • In fresh market, or if no dormant or bloom spray was applied, put up and monitor pheromone traps (by March 20 in San Joaquin Valley; April 1 in Sacramento Valley).
  • Keep records on a degree-day monitoring form.

Monitor for leafrollers and other caterpillars. Treat if needed according to the prune Pest Management Guidelines.

Keep records of other pests you may see:

Text Updated: 02/25
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