title: Toxicity of ethyl acetate extract from Jatropha gossypifolia senescent leaves against Spodoptera exigua Hübner (Lepidoptera: Noctuidae) and Meteorus pulchricornis (Hymenoptera: Braconidae).
abstract: This study explored the insecticidal effects of Thai botanical, senescent leaf Jatropha gossypifolia extracts on second instar Spodoptera exigua larvae by the dipping method and topical sprayer method. The leaf crude extract was extracted using Soxhlet apparatus with ethyl acetate as solvent. The leaf crude extracts showed insecticidal activity with a LC50 of 6182 ppm at 24 hours after treatment. In addition, this research was observed its toxicity to worm parasitoid, Meteorus pulchricornis by contact method. The result shows 60 percent mortality of this parasitoid species at dose up to 40,000 ppm. Thus, Jatropha gossypifolia leaf crude extracts can be as alternative IPM control tool for Spodoptera exigua which friendly to benefit insect such as Meteorus pulchricornis.
authors.affiliation: Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
authors.forename: N
authors.initials: N
authors.lastname: Khumrungsee
authors.forename: W
authors.initials: W
authors.lastname: Pluempanupat
authors.forename: Y
authors.initials: Y
authors.lastname: Kainoh
authors.forename: U
authors.initials: U
authors.lastname: Saguanpong
authors.forename: V
authors.initials: V
authors.lastname: Bullangpotin
mesh_terms: D000085:Acetates / Q000737:chemistry*; D000818:Animals; D006927:Hymenoptera / Q000187:drug effects*; D007306:Insecticides / Q000737:chemistry / Q000494:pharmacology; D031286:Jatropha / Q000737:chemistry*; D009036:Moths / Q000187:drug effects*; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry*
chemical_list: D000085:Acetates; D007306:Insecticides; D010936:Plant Extracts; C007650:ethyl acetate