Table 9.3. Pesticides for Blueberries in Home Gardens

Informational table showing pesticide recommendations for blueberries.
Table 9.3. Pesticides for Blueberries in Home Gardens - Articles


The important insects and diseases to be controlled, except for viruses, are listed in the right-hand column of this spray schedule. Always consult the label before making pesticide applications. Labels vary greatly among commercial products of the same material. It is important to refer to the label for the best timing and application rates when applying pesticides. Also read the text for information on cultural practices to minimize the application of pesticides.

Caution: Broad-spectrum insecticides (those with a large number of pests listed on the label) have significant potential to be harmful to non-target organisms such as bees and other beneficial or predatory insects.

Follow all instructions and application rates listed on pesticide labels.

Time to SpraySuggested MaterialsPests to Be Controlled
Delayed Dormant--buds show ¼- to ½-inch greenOil; lime sulfurScales; Phomopsis twig blight
Loose Bud--7 days later and just before blossomingCaptanPhomopsis twig blight, mummy berry, and Botrytis blight
Pre-BloomCaptanMummy berry and Botrytis blight
Full-BloomSame as Pre-BloomSame as Pre-bloom
Petal FallSame as Pre-Bloom plus Malathion or CarbarylSame as Pre-bloom plus fruitworms, weevils
First Cover--10 days after Petal FallMalathion or Carbaryl or Spinosad or EnsfenvalerateFruitworms, weevils
Maggot Spraysa--about July 1, repeat at 10-day intervalsCarbaryl plus Malathion or Spinosad or PyrethrumMaggots

aMalathion may be applied one day before harvest.