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Biological Control of Insect Pests: Southeast Asian Prospects - EcoPort

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316 <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 />

P. citri is one <strong>of</strong> a group <strong>of</strong> pests that commonly cause problems in<br />

glasshouses in Europe and North America. The mass production and release<br />

from time to time, almost always <strong>of</strong> a predator (especially Cryptolaemus<br />

montrouzieri, but sometimes also Nephus reunioni) and one or more<br />

encyrtid parasitoids (especially Leptomastix dactylopii and Leptomastidea<br />

abnormis but, on occasion also, Coccidoxenoides peregrinus, Anagyrus<br />

pseudococci and Chrysoplatycerus splendens) has generally removed the<br />

need to use insecticides. Examples <strong>of</strong> control in glasshouses include those<br />

from Belgium (Ronse 1990), Netherlands (Heanekam et al. 1987), France<br />

(Panis and Brun 1971), U.K. (Copland 1983, Hussey and Scopes 1985;<br />

Tingle and Copland 1988), Israel (Rubin 1985) and USA (Summy et al.<br />

1986).

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