【作者】 张建亮； 赵景玮；

【机构】 福建农业大学生物防治研究所；

【摘要】 本研究利用人工气候模拟设备,在室内条件下研究了五种农药在不同温度下对桃蚜的毒杀效果。结果表明,在20℃～32℃,75±5％R.H.,14L:10D光照条件下,供试的五种杀虫剂中,其中四种杀虫剂氧化乐果、三唑磷、灭多威和杀虫双的毒效随温度的升高而增强,死亡机率值(y)与温度(x)的关系分别为:y=3.0738+0.0695x,y=2.9821+0.0852x,y=4.1106+0.0500x,y=4.3611+0.0460x;而敌杀死则随温度的升高而降低,y=6.9422-0.0862x;氧化乐果的毒杀效果最好,在32℃时,桃蚜的死亡率达90.27％;氧化乐果、三唑磷的毒性随温度升高而增强的速率较大,b值分别为O.0695和0.0852。更多还原

【Abstract】 It dealt with the toxicity of five pesticides to Myzus persicae under programmable bioclimatic facilities laboratory conditions .The constant environmental conditions were as following: 20-32℃, 70±5%R.H.and 14L: 10D.Results indicated that the toxicity of four pesticides , namely Omethoate, Triazophos, dimthpo and methomyl to Myzus persicae increased with the temperature going up , the relationship between probit of mortality (y) and temprature (x) respectively were : y = 3.0738 +0.0695x; y = 2.9821 + 0.0852x: y = 4.1106 + 0.0500x, y = 4.3611 + 0.0460x While that of delta-methrin declined , y = 6.9422 - 0.0862x.更多还原