Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The walnut moth.

Abstract

In the Soviet Union, Nycteola (Sarrothripus) musculana (Ersh.) is an important pest of walnut in Kirghizia, Tadzhikistan, Turkmenia, Uzbekistan and southern Kazakhstan, the larvae damaging 50% or more of the nuts each year. All stages of the Noctuid are described, and details of its biology are recorded. It has two generations a year in the mountains and three in the valleys and overwinters as a larva in a cocoon. The females lay 70-80 eggs each. In the Caucasus and the Ukraine, walnuts are also infested by Cydia (Carpocapsa) pomonella putaminana(Stgr.), which also has 2-3 generations a year and overwinters in the larval stage in a cocoon. Recommendations are made for control.