- Author: Elizabeth E Grafton-Cardwell
Recently single adult psyllids were found on two traps about 1 mile apart from each other in Upland California (San Bernadino County). The host plants in and around these traps are being treated and these finds will expand the quarantine zone (20 miles around a psyllid find). The populations in Imperial, San Diego, and Los Angeles counties countinue to have the occasional new psyllid finds, but the area that is being treated has not expanded very much. This is evidence that the insecticide treatments are very effective - if we can find this tiny insect! We continue to get the good news that no huanglongbing disease has been found in California.