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Biological Control of Insect Pests: Southeast Asian Prospects - EcoPort

Biological Control of Insect Pests: Southeast Asian Prospects - EcoPort

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138 <strong>Biological</strong> <strong>Control</strong> <strong>of</strong> <strong>Insect</strong> <strong>Pests</strong>: <strong>Southeast</strong> <strong>Asian</strong> <strong>Prospects</strong><br />

Comment<br />

Table 4.8.1<br />

egg parasitoids were found (Encarnacion 1970). Singh and Bardhan (1974)<br />

showed that D. cingulatus was moderately susceptible to the DD 136 strain<br />

<strong>of</strong> the nematode Steinernema carcocapsae.<br />

A superficial review <strong>of</strong> the literature on the natural enemies <strong>of</strong> other<br />

species <strong>of</strong> Dysdercus revealed two tachinid parasitoids, one <strong>of</strong> each in South<br />

America and Africa and three asassin bug predators in Africa but no egg<br />

parasitoids (Table 4.8.2).<br />

Too little is known about the natural enemies <strong>of</strong> D. cingulatus to indicate<br />

whether there are any prospects for classical biological control or for<br />

manipulating them where they already occur. Since D. cingulatus now<br />

appears to have evolved in the <strong>Southeast</strong> <strong>Asian</strong> region and since effective<br />

natural enemies <strong>of</strong> related species elsewhere are not known, the prospects<br />

for its classical biological control would appear to be remote.<br />

Natural enemies <strong>of</strong> Dysdercus cingulatus<br />

Enemy<br />

INSECTA<br />

HEMIPTERA<br />

Country Reference<br />

PYRRHOCORIDAE<br />

Antilochus coquebertii<br />

India<br />

Malaysia<br />

Zaidi 1985<br />

Thomas 1966; Yunus & Ho 1980<br />

ACARINA<br />

Hemipterotarseius sp.<br />

ARACHNIDA<br />

Philippines Encarnacion 1970<br />

Spider 1 Philippines Encarnacion 1970<br />

Spider 2<br />

NEMATODA<br />

Philippines Encarnacion 1970<br />

Species 1<br />

FUNGI<br />

Philippines Encarnacion 1970<br />

Aspergillus flavus<br />

India Kshemkalyani et al. 1989

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