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The current leading biological control method of hemlock woolly adelgid is Sasajiscymnus tsugae, [originally called Pseudoscymnus tsugae]. [11] S. tsugae is a black lady beetle that is relatively host-specific, feeding only on three known aldegid species, including HWA.
There are options for managing the Hemlock wooly adelgid pest on infested trees, including pesticides and biological controls. Insect infestation poised to decimate Eastern hemlocks in the Erie ...
Join conservationists for a hands-on workshop at Cumming Nature Center to identify and survey the tree-killing insect, hemlock woolly adelgid.
This beetle was discovered in 1992 while feeding on hemlock woolly adelgid in its natural range of Japan. Since 1995, the Pennsylvania Department of Conservation and Natural Resources 's Bureau of Forestry has released hundreds of thousands of adult S. tsugae beetles into affected hemlock forests of the eastern United States to determine its ...
L. nigrinus larva feeding in an A. tsugae ovisac. Laricobius nigrinus is a species of tooth-necked fungus beetle in the family Derodontidae. [1] [2] It is native to western North America, and it is being studied as a biological control agent for the hemlock woolly adelgid. [3]
Laricobius is a genus of beetles in the family Derodontidae, the tooth-necked fungus beetles. [1]It is one of four genera in the family. While the other three feed on fungi, Laricobius species feed on adelgids, tiny insects very similar to aphids. [2]
S. coniferarum is being evaluated as a potential biological control for the Hemlock woolly adelgid infestation of the eastern hemlock on the east coast. [4]
Described in 2011, it feeds exclusively on hemlock woolly adelgid (Adelges tsugae), an invasive insect species that is destroying huge numbers of hemlock trees in eastern North America. [2] It has shown promise as a biological control agent in field trials. [3]