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Classical and augmentative biological control against ... - IOBC-WPRS

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Giorgini (Appendix for Chapter 2)<br />

8.4 Predators of insects. Neuroptera: Chrysopidae [3 species] <strong>and</strong> Coleoptera: Coccinellidae [2 species]<br />

Reference<br />

Daane et al., 1996<br />

Daane & Yokota, 1997<br />

Wunderlich & Giles,<br />

1999<br />

Species of bio<strong>control</strong><br />

agent<br />

NEUROPTERA:<br />

CHRYSOPIDAE<br />

Chrysoperla carnea<br />

(common green<br />

lacewing)<br />

Chrysoperla carnea,<br />

C. comanche,<br />

C. rufilabris<br />

Chrysoperla rufilabris<br />

Species of<br />

insect pest<br />

Erythroneura<br />

variabilis,<br />

E. elegantula<br />

(leafhoppers)<br />

Erythroneura<br />

variabilis,<br />

E. elegantula<br />

(leafhoppers)<br />

Erythroneura<br />

variabilis,<br />

E. elegantula<br />

(leafhoppers)<br />

COLEOPTERA:<br />

COCCINELLIDAE<br />

Anagnou et al., 2003 Nephus includens Planococcus<br />

citri<br />

Daane et al., 2008<br />

Cryptolaemus<br />

montrouzieri<br />

Pseudococcus<br />

maritimus,<br />

P. longispinus<br />

(mealybugs)<br />

Mani, 2008<br />

Cryptolaemus<br />

montrouzieri<br />

Planococcus<br />

citri<br />

* + means effective, - means not effective bio<strong>control</strong> agent.<br />

Taxonomic<br />

category of pests<br />

Hemiptera:<br />

Cicadellidae<br />

Hemiptera:<br />

Cicadellidae<br />

Hemiptera:<br />

Cicadellidae<br />

Hemiptera:<br />

Pseudococcidae<br />

Hemiptera:<br />

Pseudococcidae<br />

Hemiptera:<br />

Pseudococcidae<br />

Country<br />

Type of<br />

augmentation<br />

Type of test<br />

California Inundative Field<br />

(caged smallplot)<br />

Field<br />

(uncaged<br />

small-plot)<br />

Field<br />

(on-farm<br />

trials)<br />

Efficacy of<br />

bio<strong>control</strong><br />

agents*<br />

Additional information <strong>and</strong> results<br />

- Average leafhopper density reduction<br />

29.5%.<br />

- Release rates reflecting commercial<br />

recommendations.<br />

Average reduction 15.5%.<br />

- Average reduction 9.6%<br />

Not sufficient to lower the leafhopper<br />

density below the economic injury<br />

threshold.<br />

California Inundative Field - Aspects of release strategies evaluated.<br />

High mortality of lacewing eggs <strong>and</strong><br />

neonate larvae.<br />

California Inundative Field A mechanical technique was assessed for<br />

releasing eggs in liquid suspensions.<br />

Adhesion of eggs to the canopy was an<br />

issue.<br />

Greece Field It is suggested, for combined infestation<br />

by L. botrana <strong>and</strong> mealybugs, the<br />

application of B. thuringiensis <strong>and</strong> the<br />

releases of the effective predator N.<br />

includens.<br />

California Inoculative Field Commonly released in vineyards, but<br />

release rates, timing, <strong>and</strong> expected<br />

outcomes have not been scientifically<br />

evaluated.<br />

It may be best used by releasing at hot<br />

India Inundative Green<br />

house<br />

+<br />

spots where the mealybug density is high.<br />

144

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