ACTIVIDAD INSECTICIDA DEL ACEITE ESENCIAL DEL PAICO Chenopodium ambrosioides L. SOBRE Sitophilus zeamais Motschulsky

IF 0.3 Q4 AGRONOMY

Chilean Journal of Agricultural & Animal Sciences Pub Date : 2019-01-01 DOI:10.4067/s0719-38902019005000504

Julia Aros, Gonzalo Silva-Aguayo, Susana Fischer, I. Figueroa, J. C. Rodríguez-Maciel, A. Lagunes-Tejeda, Gloria Sarahi Castañeda-Ramírez, Liliana Aguilar-Marcelino

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Abstract

Sitophilus zeamais is one of the major pests of stored cereals worldwide and its control is based on the use of synthetic insecticides, but their irrational use has caused environmental pollution and resistance. Essential oils have shown contact and fumigant insecticidal effect and could be an alternative to synthetic compounds. Hence, the insecticidal properties of essential oil of Chenopodium ambrosioides L. were assessed under laboratory conditions against adults of Sitophilus. zeamais. The variables studied were contact and fumigant toxicity, and antifeedant and repellent activity. Mortality by contact toxicity did not exceed 30% in all the treatments evaluated. The highest F1 reduction was observed in the treatment of 4.0% with 41.3% of emergence (58.7% of inhibition). Grain weight loss 283 Aros, J. et al. Aceite esencial de Chenopodium ambrosioides sobre Sitophilus zeamais was lower than 9.0% and maize germination was not affected. All treatments exhibited fumigant activity, while concentrations equal to or lower than 0.5% showed repellent and feeding deterrent effect. It can be concluded that essential oil of Ch. ambrosioides has potential for S. zeamais control.

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玉米象(Sitophilus zeamais Motschulsky)精油的杀虫活性

玉米象是世界范围内储藏谷物的主要害虫之一，其防治主要以使用合成杀虫剂为主，但其不合理的使用造成了环境污染和抗药性。精油已显示出接触和熏蒸杀虫效果，可作为合成化合物的替代品。因此，在实验室条件下，对拟南藜精油对象象成虫的杀虫性能进行了评价。zeamais。研究的变量是接触毒性和熏蒸毒性，以及拒食和驱避活性。在所有评估的治疗中，接触毒性的死亡率不超过30%。在4.0%的处理中，F1降低幅度最大，羽化率为41.3%(抑制率为58.7%)。粮食减重[j]。玉米象必需酵母(Aceite essential de Chenopodium ambrosioides sobre Sitophilus zeamais)低于9.0%，不影响玉米萌发。所有处理均表现出熏蒸作用，浓度等于或低于0.5%时均表现出驱避和阻食作用。综上所述，黄花蓟马挥发油具有防治玉米玉米瘟的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chilean Journal of Agricultural & Animal Sciences AGRONOMY-

CiteScore

0.70

自引率

0.00%

发文量

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