Pest Complex of Peach & Nectarine in Ontario - Minor/Sporadic Pests

This chart indicates the stages of development for minor/sporadic of peach & nectarine showing timing of pesticide applications if threshold is reached. Does not indicate exact number or timing of pesticide applications. Timings may vary up to 3-4 weeks depending on season. Consult agriphone and Publication 360 for more information.

Oblique banded leafroller - n/a

Plum curculio

• Timing of pesticide applications if threshold is reached - border spray late May to early June

Green peach aphid

• Timing of pesticide applications if threshold is reached - early & mid June, early July

Powder mildew - n/a

Mealy bug

• Timing of pesticide applications if threshold is reached - early to mid June

Bacterial spot - n/a

Lesser peach tree borer

• Timing of pesticide applications if threshold is reached - late June, early & late July