Got Bugs?

Please send in your hemp insect photos to CSU!

Send in images to Whitney.Cranshaw@ColoState.EDU

Please do include the header “Hemp Insect Photo” to make sure that your message will be recognized in the email queue so that it can get most prompt attention.

Hemp producers are encouraged to send in photos of insects they observe associated with the crop.  We will then try to give you an identification of the insect in question.  Photos submitted are highly valued to help improve this website by identifying additional insects that are associated with the crop.

Submitted 2018 Photos!

A drone fly, Eristalis species. These are a type of syrphid fly that is an excellent mimic of a honey bee. The larvae develop in wet mud or small pools of water and are called “rattailed maggots”.Submitted by Hunter Konchan, a grower for CBDRx Natural Healing
Mantis egg mass (ootheca) on hemp stem by Hunter Konchan, a grower for CBDRx Natural Healing
Cocoons of a parasitoid wasp, Cotesia species. The larvae of these wasps develop within and kill caterpillars, such as cutworms. Later, the tiny adult wasps will emerge from these cocoons.. Submitted by Brian Mitchell at CSU
Twospotted spider mite and a hemp russet mite on hemp leaf from Weld County
Salticidae, a jumping spider searching for lunch in a hemp field in Gilcrest Colorado
Hemp russet mites on Cannabis leaf under a microscope at CSU

Submitted 2017 Photos!

The puffy brown insect is an “aphid mummy”. This is a cannabis aphid that has a parasitic wasp developing inside it. To the right is a young cannabis aphid that is not parasitized.
This is an “aphid mummy”. It is a winged-stage cannabis aphid that has a parasitic wasp developing inside it.
This is a nearly full-grown larva of the convergent lady beetle.
The white objects on the leaf are old skins of aphids discarded after molting.
Non-biting midge adult. These are very common insects that somewhat resemble mosquitoes but are harmless. Young stages develop in ponds.
This is a corn earworm larva, feeding on developing seeds. Photograph by Janna Beckerman, purduehemp.org
Orbweaver on hemp leaflet
This is a yellow woollybear, an insect that usually shows up late in the season. Photograph by Janna Beckerman, purduehemp.org
Flies massed at wound on hemp stem (Weld County, Colorado). These flies are not feeding on the hemp but are attracted to fluids that ooze from wounds and yeast that are produced at wound sites.
Green June beetles massed on hemp stem. These beetles are not feeding on the hemp but are attracted to fluids that ooze from wounds and yeast that are produced at wound sites. Photograph by Leah Black, University of Kentucky.
Green June beetles massed on hemp stem. These beetles are not feeding on the hemp but are attracted to fluids that ooze from wounds and yeast that are produced at wound sites. Photograph by Carl Redmond, University of Kentucky.
Japanese beetle on hemp. Hemp does appear to be very favored plant by Japanese beetle, but leaf injuries it may produce will likely have little, if any, effects on yield. Photograph by Janna Beckerman, purduehemp.edu
Yellowstriped armyworms feeding on hemp. Photograph by Leah Black, University of Kentucky
Conchuella stink bug egg emergence!
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