Establishment and impact of the parasitoids Diadegma semiclausum Hellen and Cotesia plutellae (Kurdj) in the management of diamondback moth of crucifers

Issue Date

10-2003

Abstract

Two larval parasitoids, Diadegma semiclausum Hellen and Cotesia plutellae (Kurdj), were imported from Taiwan and were released in cabbage-growing areas in the Philippines in 1990 for the management of the diamondback moth, Plutella xylostella L., a very destructive insect pest of Brassica crops worldwide. Diadegma is suited in areas of high elevation (more than 800m above sea level [ASL] with temperatures lower than 25 C. while Cotesia is suited in areas with low or mid elevations of less than 800m ASL with temperatures above 25 C. This paper is a review of the evaluation for effectiveness in small-scale field experiments, piloting in farmer-participated areas in the highlands (Benguet and Mountain Province) and Cotesia in the cabbage-growing areas in the lowlands (Northern and Southern Luzon), respectively, from August 1989 and their subsequent establishment in said areas.

Source or Periodical Title

Philippine Entomologist

ISSN

0048-3753

Volume

17

Issue

2

Page

119-140

Document Type

Article

Frequency

semi-annually

Physical Description

illustration; graphs; maps; tables

Language

English

En – AGROVOC descriptors

COTESIA PLUTELLAE; DIADEGMA SEMICLAUSUM; DIADEGMA; PARASITOIDS; BRASSICA OLERACEA; PEST MANAGEMENT; PHILIPPINES

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