Feeding behavior ofCryptolaemus montrouzieri on mealybugs parasitized byAnagyrus pseudococci |
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| Authors: | M Mu?tu N Kilinçer S Ülgentürk M B Kaydan |
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| Institution: | (1) Dept. of Plant Protection, Faculty of Agriculture, Ankara University, 06110 Dışkapı, Ankara, Turkey;(2) Dept. of Plant Protection, Faculty of Agriculture, Yüzüncu Yıl University, 65080 Kampüs, Van, Turkey |
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| Abstract: | The citrus mealybugPlanococcus citri (Risso) and the vine mealybugPlanococcus ficus (Signoret) (Hemiptera: Pseudococcidae) are two worldwide polyphagous pests of citrus, vineyards and ornamental plants in
greenhouses. Biological control of these pests may rely on the combined release of parasites and predators, which can be affected
by intraguild predation (IGP). This study investigated the feeding behavior of different stages ofCryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) on mealybugs parasitized byAnagyrus pseudococci (Girault) (Hymenoptera: Encyrtidae) 2, 4, 6, 8 and 10 days. The study was conducted in a climate-controlled room at 28±1°
C, 16L:8D, and 65±10% r.h. The highest consumption values for all stages ofC. montrouzieri occurred with 2- and 4-day parasitized mealybugs, whereas the predator did not feed on either species of mealybug parasitized
for longer periods, due to the onset of mummification.
http://www.phytoparasitica.org posting August 4, 2008. |
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| Keywords: | Citrus mealybug intraguild predation Planococcus citri Planococcus ficus vine mealybug |
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