Alfalfa Pests

Alfalfa is the most important crop in Utah, both in terms of acreage and revenue. This page provides brief overviews of the common arthropod and disease pests in alfalfa production. Reference the Beneficial Insects & Pests of Utah Alfalfa Guide for further information.

Insects

Alfalfa LooperAlfalfa Looper

Alfalfa WeevilAlfalfa Weevil
Aphids on AlfalfaAphids of Alfalfa‎
ArmywormArmyworms
Blister BeetlesBlister BeetlesCankerworms
Clover Root CurculioClover Root Curculio
CutwormCutworms
False Chinch BugFalse Chinch Bugs
Flea BeetlesFlea Beetles
Hoppers on AlfalfaLeafhoppers
Tarnished Plant BugTarnished Plant Bug
Thrips on AlfalfaThrips

Diseases

Alfalfa Downy MildewAlfalfa Downy Mildew
Alfalfa Mosaic VirusAlfalfa Mosaic Virus
Alfalfa Stem NematodeAlfalfa Stem Nematode
 

 

Image Credits
Alfalfa Looper, Alfalfa Weevil: Whitney Cranshaw, Colorado State University, Bugwood.org
Blister Beetles: Lee Townsend, University of Kentucky
Clover Root Curculio: Steven Price, entomologytoday.org
Alfalfa Downy Mildew: Rachael Freeman Long, University of California Cooperative Extension
Alfalfa Mosaic Virus: Emmanuel Byamukama, South Dakota State University Extension
Alfalfa Stem Nematode: Clemson University - USDA Cooperatie Extension, Bugwood.org