Does anyone know what they are, where they come from and how to get rid of them? They destroyed my daylilies. We are in the Toronto, Ontario, Canada area. Please help.
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Bad news ! they are more famous for finding shelter in great numbers inside houses during the winter than for any damage they do to plants. They are Boisea trivittata, Boxelder bugs, they are attracted by some trees including, the box elder tree, the female maple tree, because they primarily feed on these tree's seeds.
If you do not want to remove the tree or if the trees are not yours you can try to wipe their seeds from the ground in the automn. Here is a site for more information :
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