Hemp Pests

Much of this content is a result of a two-year arthropod and plant disease survey of field-grown hemp operations in northern Utah. Some pests included in this guide were not found in that survey, but may be likely to occur in the future. Reference the full Pests of Hemp in Utah Guide.



Abiotic Disorders

Image Credits

Pavement Ant- Joseph Berger, Bugwood.org
Cannabis Aphid- koppert.com
Rice Root Aphid- Sunil Joshi & Poorani, J. Aphids of Karnataka
Spotted Cucumber Beetle - Govinda Shrestha
Beet Webworm- Frank Peairs, Colorado State University, Bugwood.org
Corn Earworm- Kadie Britt
Cotton Square Borer, Eurasian Hemp Borer, European Corn Borer, Painted Lady, Saltmarsh Caterpillar, Variegated Cutworm, Yellow Wollybear, Zebra Caterpillar, Potato Leafhopper, Hemp Russet Mite, Spider Mites, Beet Curly Top Virus, Stink Bugs, Thrips- Whitney Cranshaw, Colorado State University, Bugwood.org
Broad Mite- Lorena Lopez 
Scentless Seed Bug- Jim Moore, bugguide.net
Bud Rot- questclimate.com

Fusarium Wilt- Ed Rosenthal
Fusarium Crown Rot- Clint Walker
Leaf Spot- North Carolina State University
Powdery Mildew- N. Gauthier
Pythium Root/Crown Rot- National Plant Diagnostic Network
Stem Cankers- Alberti, I., Prodi, A., Nipoti, P
Verticillium Wilt- grasscity.com
Alfalfa Mosaic Virus- ripperseeds.com
Arabis Mosaic Virus- https://durangoherald.com/articles/293876#
Curly Top Virus- USU Extension IPM Program
Herbicide Damage- USU Extension IPM Program
Nutrient Deficiencies- USU Extension IPM Program
Other Abiotic Disorders- USU Extension IPM Program