Insects » Blue Alfalfa Aphid
     
 
 

Blue alfalfa aphid colony

Blue Alfalfa Aphid
Acyrthosiphon kondoi Shinji

This aphid resembles the pea aphid but is more bluish green and 3 to 3.5 mm long. It is generally abundant in early season or cooler weather and found primarily on young shoots and terminal leaves. Sap sucking by this aphid causes stunting or wilting and leaf drop. Large amounts of honeydew are produced. This aphid's distribution and damage are localized. Host plants: peas, lentils, alfalfa, clover, wild legumes.