Leafhopper Newsletter

Adult emergence slowing, nymphs present in Mendocino and Lake Co. - July 20

MENDOCINO COUNTY

Adult populations are beginning to decline and the peak of the second flight is most likely over. Densities of WGLH adults continue to increase in Redwood and Potter Valley and at the "Hopland2" site. Second brood VCLH/WGLH nymphs are present, most of which are 4th - 5th instar (stage). Some 1st - 2nd instar nymphs were seen at the "Hopland2" site, which are likely from the third brood.

LAKE COUNTY

Adult populations are also beginning to level off and we are seeing second brood nymphs which are mostly 2nd instar (stage).

PARASITOID RELEASE PROGRAM

A batch of Anagrus daanei, the parasitoid that controls VCLH, was released on July 15 in Mendocino County near Hopland.