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Home Orchards: Table 5.3. Efficacy of Pesticides on Peaches and Nectarines
Due to a wide array of various products containing the same active ingredient, sometimes the active ingredient is listed instead of the name of the formulated product.
Updated:
March 23, 2026
Caution: Broad-spectrum insecticides (those with a large number of pests listed on the label) have significant potential to be harmful tonon-target organisms such as bees and other beneficial or predatory insects.
Insects and Mites
- ERM = European red mite
- GPA = green peach aphid
- JB = Japanese beetle
- OFM = oriental fruit moth
- PTB = peachtree borer
- PC = plum curculio
- SJS = San Jose scale
- SB = stink bugs
- TPB = tarnished plant bug
- TSM = two-spotted spider mite
| Pesticides | ERM | GPA | JB | OFM | PTB | PC | SJS | SB | TPB | TSM |
|---|---|---|---|---|---|---|---|---|---|---|
| Azadirachtin | 3 | 3 | 3 | - | - | - | - | 3 | 4 | - |
| Carbaryla | 4 | 4 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 |
| Esfenvalerate | - | 3 | 1 | 2 | 2 | 2 | - | 2 | 2 | - |
| Horticultural oil | 1 | 2 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 1 |
| Imidacloprid | - | 1 | 2 | - | - | 3 | - | 3 | 3 | - |
| Malathion | 4 | 3 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 3 |
| Safer's Soap | 2 | 3 | 4 | 4 | 4 | 4 | 2 | - | - | 2 |
| Spinosad | - | - | 3 | 4 | - | - | - | 4 | 4 | - |
Degree of control: 1 = excellent; 2 = good; 3 = fair; 4 = poor; - = no rating available
a. Carbaryl may worsen mite problems.
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.
