These tiny pests are nearly undetectable, which is just how they like it. In fact, the adults never properly develop mouthparts, which is why they die after mating. Also, keep in mind that the larvae use ballooning to find a feeding spot, so it might be necessary to team up with your neighbors to ensure these little pests are properly dealt with. Unfortunately, bagworms will continue to appear every year until they’re dealt with. While evergreens are at the highest risk, branches can sometimes die due to the silk wrapped around them. One species, Thyridopteryx ephemeraeformis, has become notoriously known as the evergreen bagworm due to its food preference.Īmong the 120-plus trees and shrubs bagworms are known to infest are: Their presence is less noticeable on the latter, however, as deciduous trees grow new foliage every year.Įvergreens are less fortunate and may even die if the infestation is bad enough.
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See Also: How to Get Rid of Spongy Moths What Do Bagworms Eat?īagworms are known to infest both evergreen and deciduous trees. Once infested, the bagworms will return every year unless eliminated completely. What Causes Bagworm Infestation?īagworms are the larval and pupal stages of moths belonging to the Psychidae family, which has approximately 1,350 species worldwide.Īn infestation initially happens when one or more larvae balloon to your tree or shrub. Once the male has mated through an easy-access hole in the bag it dies, leaving the female to create the next year’s generation. The males then seek out the females, which are grublike and wingless, remaining sheltered in their cocoons. The coloration varies from one species to another, but they’re often black with furry antennae.
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When the pupae break free of their cocoon bags, it’s only the makes that emerge. The pupal stage occurs in late summer to early autumn and only lasts a few weeks. How Long Do Bagworms Stay in Their Cocoon? Once the bag is about two inches long, they fasten it to a tree branch. They then spin a cocoon-like bag out of silk and leaf debris, carrying it with them as they travel and feed.Īs they grow, they expand the cocoon. Soon after hatching, the ⅛-inch long bagworms create little silk parachutes and let the air carry them to prime feeding grounds.
The eggs hatch in late spring to early summer. Once she’s finished laying the eggs, the female lets go of the bag and dies.Īfter fertilization, it takes 5 to 10 days to begin the egg-laying process and about two to three weeks to complete. Where Do Bagworms Lay Their Eggs?įemale bagworms lay their eggs inside the bags they carry, with a single bag holding 500 to 1,000 eggs. From a normal egg phase, the strangeness begins with the larval stage and continues into adulthood. While bagworms have the same life stage as other butterflies and moths, they go about it in a most curious manner. There’s not a whole lot to say about bagworms except that they’re sneaky, can travel a fair distance by wind (anyone who’s seen Charlotte’s Web will be familiar with ballooning), and feed on at least 128 different types of tree and shrub. Get a free quote from top pest control companies in your area.
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