Recovery from Parasitism

Abstract

THE pine shoot moth, Evetria buoliana, Schiff., one of the best known Lepidopterous pests of young Scots pine in Europe, has during the past decade been causing much concern by its increasing prevalence in the numerous young pine plantations in East Anglia. Just over a year ago a thorough study was begun of the biology and forest relations of the species, the first results of which have been worked out. Amongst other things it has been found that a slight check is exercised on the increase of the insect by a number of different species of parasites which oviposit in the newly hatched caterpillars and the flight periods of which correspond roughly to that of the moths, and in this connexion an interesting fact has already been brought to light.