How to Manage Pests

Pests in Gardens and Landscapes


Sanitation is a necessary management tool in all home orchards because of the long life of trees. Perennial weeds, nematodes, and certain disease pathogens are difficult to control after trees become established. Prevent the introduction or spread of infestations by removing infected limbs and fruit. Disinfect cutting tools periodically during pruning and at any time that they come into direct contact with diseased tissue. Clean equipment used in other areas to avoid introducing pathogens, nematodes, or weeds.

Sanitation Tips

  • Remove diseased wood as soon as it becomes evident. Dispose of the prunings immediately to prevent them from becoming a source of new infections.
  • Remove stumps, brush piles, and debris. Brush, thinnings, and other debris can harbor diseases as well as vertebrates and insects. Removing stumps may prevent population buildups of wood-boring insect pests.
  • Remove diseased shoots, leaves, and fruit on trees and on the ground.
  • Remove roosting, nesting, or resting areas that may attract large numbers of crop-destroying birds.
  • Keep the tree crown area free of weeds to reduce crown rot infections.
  • Spot-treat perennial weeds to prevent their spread.

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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