Persistence, Relative Efficacy and Phytotoxicity of Lantana camara Var. Aculeata (L.) Moldenke Leaf Crude Extracts in Hexane against Plutella xylostella L. In Cruciferous Vegetables

Thanavendan, G.; Kennedy, J.S.

doi:10.20546/ijcmas.2017.606.377

Cited by 1 publication

(2 citation statements)

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“…Compared with other extracts, the ethanol/distilled water extraction of Trillium govanianum exhibited insecticidal activity against larvae of P. xylostella, with mortality not exceeding 50% at 72 h and an LC 50 value of 11.040 mg/mL at 96 h [28]. The Lantana camara extracts at 8% and 10% showed ovicidal and oviposition deterrence activities, with a lower insecticidal activity against P. xylostella larvae [29]. The n-hexane fraction of Zanthoxylum armatum extract showed insecticidal activity against larvae of P. xylostella with an LC 50 value of 29.88 mg/mL, which was similar to what was achieved in the present study [30].…”

Section: Discussionmentioning

confidence: 90%

“…For example, it is one of the main constituents of Cyperus rotundus essential oil, which showed contact toxicity and repellent activity against Callosobruchus maculatus, Trogoderma granarium, and Oryzaephilus surinamensis [33]. It is also a major constituent of Lantana camara extract, which had ovicidal activity and an oviposition deterrent effect on P. xylostella [29]. In addition, Huang et al [31] reported that Artemisia lavandulaefolia extract and its constituent caryophyllene oxide had strong contact toxicity and fumigant activity against larvae and adults of P. xylostella, with LD 50 values of 20.71 mg/mL and 1.06 mg/mL, respectively.…”

Section: Discussionmentioning

confidence: 99%

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Behavioral, Electrophysiological, and Toxicological Responses of Plutella xylostella to Extracts from Angelica pubescens

Zheng

Zhao

et al. 2023

Insects

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Plutella xylostella L. is a destructive pest affecting cruciferous vegetables, causing massive economic losses worldwide. Plant−based insecticides are considered promising insect control agents. The Angelica pubescens extract inhibited female oviposition, with an oviposition deterrence index (ODI) of 61.65% at 12.5 mg/mL. We aimed to identify the bioactive compounds in A. pubescens extract. The compounds from A. pubescens extract were analyzed using LC−MS techniques. The toxicity and behavioral responses of larvae and adults of P. xylostella to ten compounds were investigated. We found that the caryophyllene oxide and 3,4-dimethoxycinnamic acid inhibited female oviposition; the ODIs were 98.31% and 97.59% at 1.25 mg/mL, respectively. The A. pubescens extract, caryophyllene oxide, and 3,4-dimethoxycinnamic acid caused larval mortality, with LC50 values of 21.31, 4.56, and 5.52 mg/mL, respectively. The EAG response of females was higher than that of males under A. pubescens extract conditions, while the EAG response of males was higher than that of females in caryophyllene oxide and 3,4-dimethoxycinnamic acid conditions. The A. pubescens extract and caryophyllene oxide showed repellent activity against both female and male adults, while the 3,4-dimethoxycinnamic acid did not elicit any notable behavioral responses from P. xylostella adults. A. pubescens extract and caryophyllene oxide are potential insecticides, oviposition deterrents, and behavioral regulators against P. xylostella, and they could be potential candidates for the development of biological insecticides to control P. xylostella.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%