The most important parasite observed in outbreaks in Wisconsin during the mid 1950's was a fly that parasitized the adult. If this is not possible, dense planting to ensure early crown closure with the resultant shading out of these plants is advisable. Spraying in August is not as effective as earlier treatments. These insecti- cides are general use pesticides available to homeowners. Read and follow the product label for the manuracturer's directions for mixing the pesticides and precautions in their use.
Pesticides are poisonous.
Keep all pesticides away from children and pets.