The oak leaf tier frequently feeds simultaneously with other oak feeders (i.e., sawflies and gypsy moth) and a single application may control all of these. Since foliage is especially tender as the ...

The common spangle gall wasp is a tiny wasp, Neuropterus quercusbaccarum, that causes a growth, or 'gall', on the underside of oak leaves in early autumn. It is common and widespread, and a single ...