核桃青皮提取物对玉米蚜的毒杀活性

Insecticidal Activity of Extracts from Walnut Peel on Corn Leaf Aphid

研究不同条件下核桃青皮提取物对玉米蚜的毒杀活性。采用单因素和正交试验的方法,计算不同浓度、温度和时间核桃青皮提取物对玉米蚜的死亡率和校正死亡率,确定不同因素对核桃青皮毒杀活性的影响。试验表明,提取物浓度为100mg/mL、温度为25℃、时间为48h时核桃青皮提取物对玉米蚜毒杀活性最高。提取物浓度对核桃青皮毒杀活性影响最大,其次为时间因素。研究可为开发以核桃青皮为原料的植物性杀虫剂,实现安全高效的防治玉米蚜提供理论依据。

To study under different conditions of walnut peel extract of corn aphid insecticidal activity, using single factor and orthogonal test method, the calculation of different concentration, temperature and time on the extract of walnut green husk corn aphid mortality and mortality, to determine the effects of different factors on the antifeedant activity of walnut peel. test showed that the extract concentration is 100mg/mL, the temperature is 25℃, time is 48h walnut peel extract showed the highest activity of corn aphid, the concentration of the extracts of walnut green husk activity against the greatest impact, followed by the time factor, for the study of plant development in walnut peel as raw materials of pesticides, and provide a theoretical basis for the realization of safe and efficient control of corn leaf aphid.