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Your search keyword '"De Clercq, Patrick"' showing total 34 results
Start Over Author "De Clercq, Patrick" Journal biocontrol
34 results on '"De Clercq, Patrick"'

25. Detecting arthropod intraguild predation in the field

Author

Aebi, Alexandre, primary, Brown, Peter M. J., additional, De Clercq, Patrick, additional, Hautier, Louis, additional, Howe, Andy, additional, Ingels, Brecht, additional, Ravn, Hans-Peter, additional, Sloggett, John J., additional, Zindel, Renate, additional, and Thomas, Alison, additional

Published
2011
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33. Development and reproduction of the predatory mite Amblyseius swirskii on artificial diets.

Author

Nguyen, Duc, Vangansbeke, Dominiek, Lü, Xin, and De Clercq, Patrick

Abstract

Development, survival and reproduction of the predatory mite Amblyseius swirskii (Athias-Henriot) (Acari: Phytoseiidae) were assessed when fed on cattail pollen ( Typha latifolia L.), dried fruit mite ( Carpoglyphus lactis L.), or on two artificial diets. The basic artificial diet (AD1) was composed of honey, sucrose, tryptone, yeast extract, and egg yolk. This diet was enriched (AD2) by adding hemolymph from oak silkworm pupae ( Antheraea pernyi (Guérin-Méneville)). Mites fed on C. lactis and AD2 had shorter immature and preoviposition periods than those fed on the other diets. The total number of deposited eggs was significantly higher for females fed on AD2 than for those maintained on the other diets. The intrinsic rate of increase (r) of A. swirskii was highest on AD2 and C. lactis, followed by T. latifolia pollen, and AD1. In conclusion, the artificial diet AD2 supported development and reproduction of A. swirskii to the same extent as a factitious prey which is routinely used in the mass rearing of the phytoseiid. Our findings indicate the potential of artificial diets for the mass production of this economically important predatory mite. [ABSTRACT FROM AUTHOR]

Published
2013
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34. Effect of temperature on the functional response of Adalia bipunctata to Myzus persicae.

Author

Jalali, Mohammad Amin, Tirry, Luc, and De Clercq, Patrick

Abstract

The effect of temperature on the functional response of female adults of the two-spot ladybird, Adalia bipunctata L. (Coleoptera: Coccinellidae) was examined in petri dish arenas containing sweet pepper leaves infested with different densities of the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae). The predator showed a type II functional response at three tested temperatures ranging from 19°C to 27°C. The theoretical maximum number of prey captured by the predator increased with temperature. Based on the random predator equation, the estimated attack rates ranged from 0.13 h−1 at 19°C to 0.35 h−1 at 27°C on a leaf area of 20–25 cm2. There was no significant difference between the attack rates of the predator at 23°C and 27°C. Handling time significantly decreased as temperature increased from 19°C (0.39 h) to 27°C (0.24 h). This study shows that A. bipunctata displays high predation rates on M. persicae for a wide range of temperatures, indicating its potential for augmentative releases against this aphid pest. The limitations of the predictions generated by functional response experiments are discussed. [ABSTRACT FROM AUTHOR]

Published
2010
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