A network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests.
PestNet is a network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests. It started in 1999. Anyone with an interest in plant protection is welcome to join. PestNet is free and is moderated, ensuring that messages are confined to plant protection.
May 1972. A caterpillar infesting peanuts in Vinh, Vietnam. The head of the agriculture department of Vinh University identified it as a Lymantria sp. It was previously identified as the Painted pine moth caterpillar. Is this correct?
As this has been collected in Vietnam, it is Orgyia postica (Erebidae, Lymantriinae, Orgyiini), a known polyphage that can reach minor pest status. In Hong Kong, a member said that he had not seen more than one or two larvae at a time. Some people find the setae urticating, so for anyone with sensitive skin, gloves should be worn when handling these larvae. Pheromone lures to catch adult males, and a single spray of Bt on the affected crop only, are likely the most effective ways to reduce the population to acceptable levels.