Although these cocoons look like ordinary pine at first glance, they are the cocoons of bagworms and creepers found in Ontario, and are actually filled with hundreds of arboreal eggs that have the potential to destroy the leaves of evergreen plants. Bagworms mostly attack deciduous and evergreen trees, including cedar, fir, hemlock, juniper, pine, and Christmas tree.

These cone-shaped sacs are usually woven together using silk, pieces of leaves and twigs of the host plant. Once the larvae emerge, they have the potential to move into nearby plants and endanger nearby trees. These troublesome pests are now back in Ontario. Since complete leaf shedding and death can often be caused by this pest, you need to get rid of it as soon as possible. To do this, separate the cocoons by hand and place them in a plastic bucket filled with a mixture of warm water and dishwashing liquid.

Next, you should put the soaked bagworms in a sealed plastic bag and throw them in the garbage. Although this can be done at any time of the season, it is best to do it before hatching. New bagworms, which usually occur in late May to mid-June, are very important.

You can also kill bagworms with insecticides that contain Bacillus thuringiensis.

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