Bagworm Prevention
Best way to control an infestation of bagworms is to spray tree in the early spring when baby caterpillars are just emerging and relatively weak. Timing is crucial, if sprayed even a week late they will be big enough to resist the pesticides. Arborviates and ornamental conifers are bagworms favorites but they also feed on broad leaved shrubs and trees like maples and sycamores.
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