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Biological Control of Insect Pests: Southeast Asian Prospects - EcoPort

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Table 4.16.6 Natural enemies <strong>of</strong> Trichoplusia ni larvae in southern California from weed hosts, lucerne and tree tobacco<br />

(Nicotiana glauca) (from Clancy 1969)<br />

Month No reared % pupating % killed by<br />

virus all parasites Voria ruralis all other<br />

Tachinidae<br />

Copidosoma<br />

truncatellum<br />

all other<br />

Hymenoptera<br />

1966 Collections from annual weeds<br />

May 94 2.1 63.8 34.0 4.3 11.7 10.6 7.4<br />

June 286 12.6 57.3 30.1 7.7 9.8 4.9 7.0<br />

July 327 4.6 70.9 24.2 4.0 10.1 5.5 4.6<br />

Aug 280 6.1 44.3 49.6 16.1 6.4 25.4 1.8<br />

Sept 193 18.6 31.6 49.7 12.4 9.3 30.0<br />

Oct 267 41.9 37.8 20.2 6.4 3.4 10.5<br />

Nov 162 47.5 25.9 26.5 9.3 1.2 16.0<br />

Dec<br />

1967<br />

151 4.6 39.1 56.3 38.4 0.7 16.6 0.7<br />

Jan 138 31.9 16.7 51.4 34.1 0.7 16.7<br />

Feb 63 61.9 11.1 27.0 11.1 15.9<br />

March 7 14.3 28.6 57.1 14.3 42.9<br />

April 12 41.7 33.3 25.0 25.0<br />

May 120 60.0 15.8 24.2 16.7 1.7 5.8<br />

Totals 2100 22.0 42.5 35.2 13.1 5.9 13.3 2.8<br />

Collections from lucerne<br />

149 6.7 63.8 29.5 6.0 20.8 0.7 2.0<br />

Collections from tree tobacco, Nicotiana glauca<br />

479 47.0 11.9 41.1 21.5 1.0 11.7 6.9<br />

4.16 Trichoplusia ni 339

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