Assessment of damage and control of Helopeltis clavifer (Heteroptera: Miridae) on tea in Papua New Guinea.

Abstract

The min'd Helopeltis clavifer (Walker) (Heteroptera: Miridae) caused severe damage to tea in plucking at the Garaina Experimental Tea Plantation during 1977-78. The damage caused and probable reasons for the outbreak are discussed. Spraying with endosulfan gave good control. A simple, rapid method of estimation of damage levels was developed and is outlined. The results of regular surveys using this method can be used to monitor damage levels, detect areas requiring spray applications and determine the efficacy of the control measures used. The method could possibly be adapted for use on other pests in Papua New Guinea.