Are bag worms like tent worms? My grandfather and uncles used to pull the "tents" out of trees and douse them in gasoline in metal buckets. When they got all the tents with worms they could get, they had the land sprayed. It took care of it.
Added by CassieMae:
If your infestation is mild, you can pick off the tents in the late fall, winter, or early in the spring. This is when the eggs are inside the cocoons. By mid spring, the eggs begin to hatch and the infestation will continue if you have not gotten rid of them. They spend the spring and summer with their cocoon attached to their backside and the males will come out to seek females who will mate with them and lay their eggs by early fall.
Burning the egg filled cocoons in a controlled burn will solve the infestation problem, though some states and localities have ordinances against this. Check with your local Department of Agriculture office for disposal recommendations and legal pesticides to deal with larger infestations.
Yes, bagworms can kill trees if they are not controlled by removal or sprays.
Bacillus thuringiensis is 'B.t.', which is an organic control of bagworms, caterpillars, hornworms and loopers.
Yes, Sevin kills bagworms. The insects in question (Thyridopteryx ephemeraeformis) will not survive the application of Sevin dust when they are at their most vulnerable: worms measuring less than one-half inch (0.127 centimeters) in length.
Pruning circulation-impeding branches and twigs , removing by hand, and spraying water from a hose are ways to kill bagworms without killing trees. There must be containers or materials (bags, cloths) underneath the tree for closed removal to a burn site in order for the above-mentioned organic treatments to work.
Gloved hands, hosed sprays, mechanical tools and non-organic and organic treatments are options that can be pursued to kill bagworms. The insects in question (Psychidae family) can be controlled best at the egg and hatchling stages with horticultural oils and insecticidal soaps. Minor infestations within comfortable, safe arm's reach respond to removal by gloved hand, hosed spray and mechanical tool into soapy water-filled buckets whereas a number of organic (such as Bacillus thuringiensis) and synthetic (such as acephate, bifenthrin, carbaryl, cyfluthrin, deltamethrin, fluvalinate, permethrin) exist, particularly in the hands of International Society of Arboriculture-certified arborists.
It sounds like bagworms. They do not turn into moths or butterflies and can damage on the host plant that they are on.
Yes, Sevin kills bagworms.Specifically, it is important to keep in mind the forms of the control and the pest. Sevin dust is most effective before the bagworms (Psychidae family) exceed lengths of Â½ inch (1.27 centimeters) or more. Other options will include removal by hand and treating with Bacillus thuringiensis (Bt).
The cocoon is that of a "bagworm," a type of moth. The Psychidae (bagworm moths, also simply bagworms or bagmoths) are a family of the Lepidoptera (butterflies and moths).
I have figured out that they are called bagworms.