The ideal temperature range is between 40°F and 70°F (4°C to 21°C). Missing even a small patch of bark can leave a colony of eggs unscathed.
Dormant Oil Spray for Apple Health: Protecting Your Tree’s Bark and Beyond
The oil acts as a surfactant, helping to wash away dust, pollen, and sooty mold that accumulated on the branches during the growing season. Furthermore, by reducing the initial pest population in the spring, the need for subsequent, more aggressive chemical treatments during the growing season is greatly reduced.
If the oil dries too slowly in cold temperatures, it can cause phytotoxicity, damaging the bark. Pay special attention to the crevices and cracks where insects prefer to lay eggs.
Dormant Oil Spray for Apple Health: Protecting Pests in Crevices
Because it targets the cellular level, the pests cannot develop a resistance to the treatment in the way they might with a synthetic insecticide. Benefits Beyond Pest Control While the primary goal of a dormant application is to eliminate pests, the benefits extend significantly further.
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