Effect of volatiles emitted from wilted Populus nigra L. leaves on the mating and oviposition of Helicoverpa armigera (Hübner)

Li, Weizheng; Sheng, Ziyao; Hu, Jingjing; Luo, Qianwen; Gao, Chaonan; Guo, Xuewu; GuoHui, Yuan

doi:10.1016/j.chnaes.2020.09.010

Cited by 1 publication

(1 citation statement)

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“…As most plant species in northeast India have not yet been studied phytochemically, extensive research is needed to investigate plant extracts and bioactive ingredients for possible development as botanical insecticides (Mao et al, 2009; Panda et al, 2020). There are, however, reports of insecticidal activity of A. adenophora against P. xylostella (Adebisi et al, 2019) and oviposition deterrent activity against P. brassicae (Sharma, 2008) and Helicoverpa armigera (Hübner) (Likun et al, 2010). However, no reports have yet been published about extracts of A. adenophora against C. pavonana , nor its major compounds identified.…”

Section: Introductionmentioning

confidence: 99%

Antifeedant effects of crofton weed,Ageratina adenophoraextracts and their phytochemical compounds against three cabbage insect pest species

Mayanglambam

Rajashekar

2023

Entomologia Exp Applicata

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Given that synthetic pesticides used in agricultural fields have negative side effects, safer alternatives such as botanical insecticides are required for insect pest management. Here, solvent extracts (hexane, ethyl acetate, chloroform, acetone, and methanol) of crofton weed, Ageratina adenophora (Spreng.) King & H.Rob. (Asteraceae), were studied for antifeedant activity against third instars of large cabbage white butterfly, Pieris brassicae L. (Pieridae), diamondback moth, Plutella xylostella L. (Plutellidae), and cabbage cluster caterpillar, Crocidolomia pavonana Fabricius (Crambidae, all Lepidoptera). Among the solvent extracts tested, A. adenophora hexane extract at 5% concentration exhibited maximum antifeedant activity against P. xylostella (92.1%), C. pavonana (87.4%), and P. brassicae (81.7%). The effective concentration (EC 50 ) values were 1.4, 2.1, and 2.8%, respectively. The hexane extract was characterised using gas chromatography-mass spectrometry (GC-MS) analysis and it was determined that its main compounds were 9,11-octadecadiynoic acid, 8-oxo-, methyl ester (27.5%), 2(3H)-naphthalenone, 4,4a,5,6,7,8-hexahydro-4a, (R)-7,7-trimethyl-(20.4%), germacrene D (6.1%), 2(1H)-naphthalenone (5.8%), 5,6-decadien-3-yne, 5,7-diethyl (5%), and α-bisabolene (2.1%). The results suggest that hexane extract of A. adenophora could be used for the development of botanical insecticides.

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Section: Introductionmentioning

confidence: 99%