Evening Republican, Volume 17, Number 192, Rensselaer, Jasper County, 13 August 1913 — GRAPE INSECTS [ARTICLE]

GRAPE INSECTS

By JAMEB TROOP, Department of Entomology, Purdue University School of Agriculture, Purdue University Agricultural Ex- ■ ■ ' ■ tension. ;' < Ot the species of insects which infect grapes one of hte most destructive to the foliage is the Rose-beetle or rose-chaster, but fortunately this insect does not make its appearance in large numbers only ocasionally, but when it does "come, it usually strips the vines of their leaves in short order. No ordinary insecticide has any effect upon them, consequently the only successful method of holding them in check is to spread sheets or blankets under the vines and jar them off, then gather them into a dish of kerosene.

The grape leaf-folder and the grapeborry moth are the next most important species, the first feeding upon the leaves and the second causing wormy grapes, often destroying the whole bunch. These species are easily managed, however, as both pass the winter in the rubbisb around the vines* and may be gathered up and burned. The grape phyloxera, which is so destructive to the European vineyards, does not injure our native varieties to any great extent, as they are more hardy and better able to overcome the attacks of these Insects.