Check Citrus Trees for Asian Citrus Psyllid

Check Citrus Trees for Asian Citrus Psyllid

Spring in California is time to inspect citrus trees for Asian citrus psyllid.

A tell-tale sign of spring in California is a flush of new leaf growth on citrus trees. Because the feathery light green leaves are particularly attractive to Asian citrus psyllids (ACP), the leaves’ emergence marks a critical time to determine whether the pest has infested trees.

“We encourage home citrus growers and farmers to go out with a magnifying glass or hand lens and look closely at the new growth,” said Beth Grafton-Cardwell, UC Agriculture and Natural Resources (UC ANR) citrus entomologist. “Look for the various stages of the psyllid – small yellow eggs, sesame-seed sized yellow ACP young with curly white tubules, or aphid-like adults that perch with their hind quarters angled up.”

Pictures of the Asian citrus psyllids and its life stages are on the UC ANR website at If you find signs of the insect, call the California Food and Agriculture (CDFA) Exotic Pest Hotline at (800) 491-1899.

{ Read full article }

Watch video and learn how to identify Asian citrus psyllids: