![]() ![]() However, for infestations on large trees with tall canopies, it is best to consult an ISA-certified arborist for assistance. "In nature, everything has its place and destroying the worms is only necessary to maintain order, a mild infestation on a healthy tree may be unsightly but the worms have a place in the food chain so if the tree can survive it may not be worth getting rid of bagworms altogether as opposed to the webworms." Obviously getting rid of spiderwebs is a 1 priority, since that is a favorite meal of the plaster bagworm. It’s also important to keep a clean house. A good way to keep them away is to keep your air conditioner on and your house cool. However, Payne suggests using BT because it specifically targets bagworms without impacting the food chain. The reason plaster bagworms are common Florida pests is that they like the high humidity found here. Broad-spectrum, contact insecticides like carbaryl or malathion can be used for larger, older larvae. It is commonly known as the plaster bagworm but as the term 'bagworm' more properly refers to moths of a different family ( Psychidae ), it is often called the household casebearer which may in turn refer to the related Phereoeca allutella. Encourage Natural Predators Light infestations of bagworms on large, healthy trees are often not much of a problem, as birds and some insect predators will feast on the young caterpillars. Chemical controls, such as products containing Bacillus thuringiensis (BT) or spinosad, are effective against small, young larvae. Ideally, the bags should be removed from late fall to spring (roughly October to March) to ensure you are removing as many eggs as possible. If handpicking is not feasible, spraying with insecticides such as Spinosad and Acephate can be effective. If you are thinking about how to organically kill bagworms, you can just leave the whole thing up to the birds. "For those who aren't scared to get their hands dirty it's a simple fix," Payne said. There are many different types of pesticides that can be used to get rid of plaster bagworms, and the best one for your situation will depend on the severity of the infestation and the types of plants that are being infested. She advises dropping them into a bucket of soapy water to kill the caterpillars. If you have a plaster bagworm infestation, the best way to get rid of them is to use pesticides. Be sure to cut off all their silk, too, because that could strangle (and kill) twigs later. "To get rid of them you have to be sure to collect and destroy them, otherwise they'll simply find a way to crawl back into your trees or plants and start the problem over again," Payne said. You aren’t going to like this, but the easiest way to remove bagworms is to cut off the bags by hand and destroy them. Safer ® Brand offers a variety of bagworm control products to help control and eliminate this garden pest. The bags should be destroyed or discarded immediately as the overwintering eggs within them remain viable. can be successfully utilized in the control of bagworms when it is applied while the bagworm is in its early larval stages towards the end of spring, right after the larvae have emerged and drifted to their new host plants. Payne recommends handpicking bagworms as the best method for getting rid of them. ![]()
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