EFICACIA IN VITRO DE EXTRACTOS DEL HONGO COMESTIBLE PLEUROTUS OSTREATUS KUMM PARA EL CONTROL DE SITOPHILUS ZEAMAIS MOTSCHULSKY

IF 0.3 Q4 AGRONOMY

Chilean Journal of Agricultural & Animal Sciences Pub Date : 2019-12-01 DOI:10.4067/s0719-38902019005000505

V. Pino, Gonzalo Silva-Aguayo, Inés Figueroa-Cares, M. Gerding-González, P. Loyola, Gloria Sarahi Castañeda-Ramírez, Liliana Aguilar-Marcelino

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引用次数: 4

Abstract

The maize weevil, Sitophilus zeamais Motschulsky, is one of the most important pests of stored cereals worldwide. Currently, it is mainly controlled with the use of synthetic insecticides, with poor variation of action mechanisms. Natural compounds, particularly plant extracts, are an alternative to control this pest. The objective of this study was to evaluate, under laboratory conditions, the insecticidal/insectistatic effect of extracts with different polarity solvents of Pleurotus ostreatus Kumm against S. zeamais adult. The variables evaluated were contact and fumigant toxicity, repellency and antixenosis. A completely randomized experimental design was used. The highest toxicity was obtained by fumigation with ethyl acetate extract with a mortality of 100% at a concentration of 30 μL 0.15 L-1 air, and a CL50 of 18,3 μL at 0,15 L-1 air. Extracts in ethyl acetate and distilled water showed Chilean J. Agric. Anim. Sci., ex Agro-Ciencia (2019) 35(3): 294 293-303. repellent activity, while all extracts exhibited antixenosis effects. It can be concluded that P. ostreatus extract in ethyl acetate has fumigant, repellent and antixenotic activity against S. zeamais adult.

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食用蘑菇平菇提取物对玉米象的体外防治效果

玉米象甲玉米象甲是世界范围内储存谷物中最重要的害虫之一。目前，它主要通过使用合成杀虫剂来控制，作用机制变化不大。天然化合物，特别是植物提取物，是控制这种害虫的替代品。本研究的目的是在实验室条件下评估不同极性溶剂对平菇成虫的杀虫/杀虫效果。评估的变量是接触和熏蒸剂毒性、排斥性和抗异种性。采用完全随机的实验设计。用乙酸乙酯提取物熏蒸的毒性最高，在浓度为30μL 0.15 L-1的空气中，死亡率为100%，在0，15 L-1的环境中，CL50为18，3μL。在乙酸乙酯和蒸馏水中的提取物显示智利J.Agric。阿尼姆。Sci。，前Agro Ciencia（2019）35（3）：294 293-303。具有驱避活性，而所有提取物均表现出抗异种作用。结果表明，用乙酸乙酯提取的平菇提取物对玉米粉虱成虫具有一定的熏蒸、驱避和灭异活性。

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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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