ABSTRACT

In an agroecosystem, the foraging response of natural enemies is governed by the non-nutritional volatile organic compounds that serve as olfactory cues. In this study, three straight chain saturated hydrocarbons in combinations i.e, Octacosane (C28H58), Pentacosane (C25H52) and Tricosane (C23H48) were formulated and their impact was studied to assess the foraging behavior of the two Trichogrammatids. Pentacosane (C25H52) and Tricosane (C23H48) combination was found to be a strong stimulator for Trichogramma brasiliensis (Ashmead). Overall significant stimulation in foraging efficiency for Trichogramma chilonis Ishii was noticed by Tricosane (C23H48) and Octacosane (C28H58) combination. Thus, these hydrocarbon combinations could be useful to provide effective biocontrol of Lepidopteran pests by stimulating the foraging behavior of T. chilonis and T. brasiliensis. Keywords: Biological Control, Hydrocarbons, Semiochemicals, Trichogramma
Publication date: 01/07/21

https://ijbpas.com/pdf/2021/July/MS_IJBPAS_2021_5529.pdf

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https://doi.org/10.31032/IJBPAS/2021/10.7.5529