Leafhopper Newsletter

Increased adults and nymphs at most sites in Mendocino and Lake Co. - Aug. 2

MENDOCINO COUNTY

Densities of VCLH and WGLH adults are increasing at all sites, with the exception of "Hopland2" where WGLH densities slightly declined. VCLH and WGLH nymph densities have increased at all sites, most are 1st instar (stage) which means they are likely from the third brood. 

LAKE COUNTY

Densities of WGLH adults appear to be peaking (or approaching peak) while VCLH densities are generally low and more variable. We are seeing VCLH and WGLH nymphs of second brood, most of which are 3rd - 4th instar (stage).

PARASITOID RELEASE PROGRAM

Two batches of Anagrus daanei, the parasitoid that controls VCLH, were released on July 29 at two sites in Mendocino County near Hopland.