Oviposition preference and performance of Plutella xylostella are modulated by natural enemies, larval odours and immune status

Enakshi Ghosh, Aswathi Sasidharan, Paul Ode & Radhika Venkatesan
Insect herbivores frequently must balance host plant quality and the risk of attack by their natural enemies when making oviposition decisions. Yet, which factor is more important remains unresolved in plant-insect ecology. Here, we report the oviposition preference and larval performance of the brassicaceous specialist Plutella xylostella, in the context of plant quality (cabbage Brassica oleracea, vs. mustard B. juncea) and associated natural enemies. Despite the greater larval weight and adult life-span on cabbage, ovipositing...
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