The Evergreen Bagworm is one of the worst pests in North America. They can be hard to spot when they infiltrate your landscape as they look very similar to pinecones.
These gross little worms aren't actually worms, they're moth larvae. Still, that doesn't stop them from chowing down on unsuspecting trees.
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Before they undergo metamorphosis, bagworms attach themselves to trees and feed on their leaves. They look an awful lot like a pinecone.
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While the resulting bagworm moth looks beautiful, its life cycle can cause irreparable damage to trees.
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Once the bagworms are sealed in their cocoons, they're easy to dispose of.
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While throwing the cocoons out is effective, some people (like the photographer below) take special pleasure in more elaborate forms of bagworm destruction.