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Home Orchards: Table 4.6. Efficacy of Insecticides and Miticides

Informational table showing efficacy of insecticides and miticides on apples and pears.
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Updated:
March 9, 2023
E. Levine, The Ohio State University, Bugwood.org

E. Levine, The Ohio State University, Bugwood.org

Note

Due to a wide array of various products containing the same active ingredient for insecticide recommendations, when appropriate, the active ingredient is listed instead of the name of the formulated product.

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.

Insects and Mites

  • AM = apple maggot
  • CM = codling moth
  • EAS = European apple sawfly
  • ERM = European red mite
  • GAA = green apple aphid
  • GM = gypsy moth
  • OFM = oriental fruit moth
  • PC = plum curculio
  • PP = pear psylla
  • RAA = rose apple aphid
  • SB = stink bugs
  • SJS = San Jose scale
  • TPB = tarnished plant bug
  • TSM = two-spotted spider mite
Pesticides AM CM EAS ERM GAA GM OFM PC PP RAA SB SJS TFB TSM
Azadirachtin - - 3 3 4 - - - 3 3 - 4 -
Bacillus thuringiensis (Bt) 4 3 4 4 1 3 4 4 4 4 4 4 4
Carbaryla 2 2 4 2 1 2 2 3 3 3 3 3 4
Diazinon 2 2 3 2 2 2 2 2 2 2 2 2 3
Esfenvalerateb 2 2 2 4 2 2 2 2 2 2 2 4 2 4
Horticultural oil 4 4 1 2 4 4 - 2 3 4 1 4 1
CM granulosis virus - 1 - - - 3 - - - - - - -
Imidacloprid 2 - - 1 4 - 3 1 1 3 - 3 -
Malathion 2 2 3 4 4 2 2 2 3 4 - 2 2 3
Pyrethrum 4 4 3 - 3 4 4 3 3 3 3 - 3 -
Safer Soap 4 4 2 4 4 4 4 2 4 - 2 4 2
Spinosad 2 4 - - 1 4 - - - 4 - 4 -
Surround 3 4 3 4 4 - 4 2 1 3 3 - 3 4

a Sevin may worsen the mite problem and, when used shortly after bloom, can cause apples to fall from the tree.
b This compound is very toxic to bees and should not be used until after petal fall.

Degree of control: 1 = best; 2 = good; 3 = fair; 4 = poor

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.

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