Adult black vine weevils are out and active at night notching the margin of leaves. These weevils are flightless so they tend to re-infest the same areas over and over. Look for black vine weevil feeding on taxus yews, rhododendrons, heuchera, hostas, toadlilly, and bergenia. Females (only females are present) willstart laying eggs this month in the soil and legless larvae will feed on the roots of plants.
Control; Treat soil with soil drenches of Bifentrhin (Talstar). Foliage can be treated with Acephate (Orthene).


Information from the July 25, 2008 edition of the TPM/IPM Weekly Report for Arborists, Landscape Managers & Nursery Managers from University of Maryland Cooperative Extension.
No comments:
Post a Comment