Grape > Year-Round IPM Program > Dormant > Vineyard Sanitation

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Vineyard Sanitation

Vineyard sanitation is important for reducing certain overwintering pests before the next growing season.

Prune vines late in dormancy after rains reduce Eutypa spore levels. Destroy prunings of older infested wood to reduce pest sources according to the guidelines below.

Eutypa

• Prune out Eutypa-infected wood after rains.
• Destroy prunings and Eutypa-infected wood.

Insects

• Prune out and destroy mummies (dried-up fruit) by flailing or shredding to destroy overwintering sites for:
  • Omnivorous leafroller or orange tortrix (in coastal areas).
    • Remove mummy clusters from vines.
    • French plow and disc to bury weeds, mummy clusters, and ovewintering larvae living in ground duff and dried berries.
  • Vine mealybug: Steam sanitize equipment before moving to an uninfested area of the vineyard.
• Branch and twig borer: Prune out and remove dead wood in vineyards with a history of branch and twig borer. Destroy prunings.

Weeds

• Manage vineyard weeds and field margin.

Important links

• Eutypa pest management guideline
• Omnivorous leafroller pest management guideline
• Vine mealybug pest management guideline
• Branch and twig borer pest management guideline
• Orange tortrix pest management guideline
• Integrated weed management