Gypsy Moths / Caterpillars
HOW TO CONTROL GYPSY MOTHS
Keep your yard as clean as possible. Remove discarded items, dead branches, stumps, etc., where the adult female moth is likely to lay egg masses. Destroy any egg masses that are found.
The Gypsy Moth Trap is used to monitor the moth population and may also prevent male moths from homing in on females.
Tanglefoot Pest Barrier can be placed around tree trunks to help curtail the caterpillars movement into and out of the tree canopy.
Apply Bacillus thuringiensis, var. kurstaki or Monterey Garden Insect Spray (Spinosad) to the leaves of trees to kill gypsy moth caterpillars. For best results, sprays must be applied when caterpillars are young, less than one inch long. In instances where populations are high, two (or more!) applications five days apart might be needed.
AzaMax contains azadirachtin, the key insecticidal ingredient found in neem oil. This concentrated spray disrupts growth and development of pest insects and has repellent and antifeedant properties. Best of all, it’s non-toxic to honey bees and many other beneficial insects.
Least-toxic botanical insecticides should be used as a last resort. Derived from plants which have insecticidal properties, these natural pesticides have fewer harmful side effects than synthetic chemicals and break down more quickly in the environment.