Bagworms
Bagworms are fond of junipers, cedars, arbovitae, spruce and white pine, but it also is found feeding on a number of deciduous trees and shrub species.
Damage to plants is caused by the larva eating plant foliage. If not controlled while they are small, the maturing larva can do considerable defoliation during the summer.
If you have bagworms in your landscape, you’ve probably been told there’s not much you can do but cut them out of the tree and destroy them. In fact, this is the best way to get rid of them. In the fall, winter and early spring, before the eggs have hatched, the bags can be picked off the plant and destroyed. However, that’s not always easy to do, depending on the height of the tree.
The bagworm has some natural enemies, such as certain species of birds and parasitoid insects like the wasp that are able to tear open the bags and feed on the larvae. Unfortunately, in many cases other controls to eradicate bagworm populations must be used.
Control ProductsInsecticides are more effective when the larvae are small and just emerging from the over-wintering bag.
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A systemic insecticide that kills bagworms and other insects such as aphids, whiteflies, miners, scales and more on trees, flowers and shrubs, from inside the plant. Convenient, ready-to-use granules. Last 6-8 weeks.
