Evaluating trap crops for diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae)

Journal of Economic Entomology
Francisco R Badenes-PerezBrian A Nault

Abstract

Potential trap crops for the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), were evaluated through a series of ovipositional preference and larval survival experiments in outdoor screenhouses in 2002 and 2003. Hosts examined as trap crops were glossy and waxy collards, Brassica oleracea L. variety acephala; Indian mustard, Brassica juncea (L.) Czern; and yellow rocket, Barbarea vulgaris (R. Br.) variety arcuata. More eggs were laid on the potential trap crops, with the exception of waxy collards, than on cabbage. When P. xylostella was offered multiple hosts at the same time, numbers of eggs laid on glossy collards, Indian mustard, and yellow rocket were 3, 18, and 12 times greater than on cabbage, respectively. Similarly, when P. xylostella was offered a single trap crop host and cabbage, numbers of eggs laid on glossy collards, Indian mustard, and yellow rocket were 300, 19, and 110 times greater than on cabbage, respectively. Our studies suggest differences in oviposition between the potential trap crops and cabbage were likely due to host volatiles, leaf morphology and color, or a combination of these factors, rather than to total leaf areas, leaf shape, or plant architecture. Two-choice tests with a...Continue Reading

Citations

Jul 10, 2008·Journal of Chemical Ecology·J H Reudler TalsmaS van Nouhuys
Aug 24, 2013·Ecological Applications : a Publication of the Ecological Society of America·Karin StaudacherMichael Traugott
Jun 4, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Mubasher HussainDongliang Qiu
Nov 5, 2014·Journal of Insect Science·Marchioro Marchioro, Luís Amilton Foerster
Dec 6, 2019·Frontiers in Microbiology·Aabir BanerjiScott Keely

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