Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Dichocrocis punctiferalis Guenee injurious to masson pine.

Abstract

In 1982-83 the bionomics of the pyralid Dichocrocis punctiferalis were observed in Jinhua, Anji and Longguan counties, Zhejing, China. D. punctiferalis completed 3 generations on masson pine (Pinus massoniana) and 4-5 generations on fruit trees annually. Morphology of adults in populations on peach and masson pine differed in maculation size on the hind wings, colour and form of the labial palps, and with or without dense black floccus on the terminal end of tibia of the postpedes. It was concluded that there were 2 populations with different biological and morphological characteristics: the populations on crops and fruit trees are borers while those on pine are phyllophagous. The larvae of the former feed and pupate individually, and those of the latter in groups. The former overwinter as full grown larvae and the latter as later or middle-instar larvae.