Mass trapping of the diamondback moth (Plutella xylostella L.) by a combination of its sex pheromone and allyl isothiocyanate in cabbage fields in southern Vietnam

IF 1.5 4区 农林科学 Q2 ENTOMOLOGY Journal of Pesticide Science Pub Date : 2024-02-21 DOI:10.1584/jpestics.d23-042
Dinh Thi Chi, Ho Le Thi, Le Van Vang, Tran Thanh Thy, Masanobu Yamamoto, Tetsu Ando
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Abstract

A lure composed of (Z)-11-hexadecenal, (Z)-11-hexadecenyl acetate, and (Z)-11-hexadecen-1-ol at a ratio of 5 : 5 : 1 at a dose of 0.01 mg was optimal for the attraction of the Vietnamese strain of the diamondback moth (DBM). The combination of the sex pheromone with a plant volatile, allyl isothiocyanate, significantly increased the attraction of the pheromone trap. Females were also attracted, but they were only about 2% of all moths captured. In plots with 120–130 traps per ha, mass trapping with the combined lures reduced the DBM larval densities in cabbage fields as effectively as the spraying of insecticides 6 to 8 times. The weekly trap catches indicated that DBM adult densities in the mass-trapping fields were low until 28 days after transplantation, and then were kept to a modest increase until day 49. This field study also shows that the trap catches were well correlated with the DBM larval densities.

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利用性信息素和异硫氰酸烯丙酯在越南南部卷心菜田中大规模诱捕钻心虫(Plutella xylostella L.)
由(Z)-11-十六烯醛、(Z)-11-十六烯基乙酸酯和(Z)-11-十六烯-1-醇按 5 :5 :0.01 毫克剂量的性信息素组合对金刚夜蛾越南品系的引诱效果最佳。将性信息素与植物挥发物异硫氰酸烯丙酯结合使用,可显著提高信息素诱捕器的吸引力。雌蛾也会被吸引过来,但它们只占捕获蛾总数的 2%左右。在每公顷有 120-130 个诱捕器的地块中,使用组合诱饵进行大规模诱捕可减少甘蓝田中的 DBM 幼虫密度,其效果与喷洒 6-8 次杀虫剂相当。每周的诱捕器捕获量表明,大规模诱捕田中的 DBM 成虫密度在移栽后 28 天前都很低,之后一直到第 49 天才略有上升。这项田间研究还表明,诱捕器捕获量与 DBM 幼虫密度密切相关。
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来源期刊
Journal of Pesticide Science
Journal of Pesticide Science 农林科学-昆虫学
CiteScore
4.30
自引率
4.20%
发文量
28
审稿时长
18-36 weeks
期刊介绍: The Journal of Pesticide Science publishes the results of original research regarding the chemistry and biochemistry of pesticides including bio-based materials. It also covers their metabolism, toxicology, environmental fate and formulation.
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