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首页> 外文期刊>African Journal of Biotechnology >Susceptibilities of two populations of Aphis gossiper Glover to selected insecticides
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Susceptibilities of two populations of Aphis gossiper Glover to selected insecticides

机译：两种蚜虫格洛弗种群对所选杀虫剂的敏感性

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Two populations of?Aphis gossypii?were collected from cotton and melon crops treated with insecticides to control this aphid species. The susceptibility of both aphid populations to pymetrozine, Pirimicarb, Oxydemeton-methyl and Imidacloprid was evaluated using leaf deep bioassays in Laboratory which were commonly used to control this aphid on both crops. Results showed that LC50?values of these insecticides against clones of cotton aphid were 452, 1427, 1810 and 209 ppm, respectively. LC50?values of the above mentioned pesticides against clones of melon aphid were 625, 688, 523 and 125 ppm, respectively. Lc50?data showed that aphids reared on melon was 2.07, 1.6 and 3.4 times more susceptible than cotton aphids to Pirimicarb, Imidaclopride and Oxydemeton-methyl and 1.4 times more resistant to Pymetrozine, respectively. In conclusion, it has been shown that clones of cotton aphid is on average 3.4-fold less susceptible to Oxydemeton- methyl, 2-fold less susceptible to pirimicarb, 1.6-fold less susceptible to Imidacloprid and nearly 0.7-fold more susceptible to pymetrozine than clones of melon aphid.?There was little difference in susceptibility to pymetrozine between the two populations. It is also suggested that continuous resistance monitoring should be conducted on a regional scale to identify the efficiency of compounds which are applied against this insect species.
机译：从用杀虫剂处理以控制该蚜虫种类的棉花和甜瓜作物中收集了两个种群的棉蚜。在实验室中使用叶深生物测定法评估了两种蚜虫种群对嘧啶嗪，吡虫威，甲基氧化乙内酯和吡虫啉的敏感性，这通常用于控制两种作物上的该蚜虫。结果表明，这些杀虫剂对棉蚜克隆的LC50值分别为452、1427、1810和209 ppm。上述农药对甜瓜蚜虫克隆的LC50值分别为625、688、523和125 ppm。 Lc50？数据表明，在甜瓜上培育的蚜虫比棉蚜虫对吡虫威，吡虫啉和甲基羟苯乙胺的敏感度分别高2.07、1.6和3.4倍，对吡me莫嗪的抗性分别为1.4倍。总之，已证明，棉蚜的克隆对甲基羟丙甲嘧啶的敏感性平均低3.4倍，对吡虫威的敏感性低2倍，对吡虫啉的敏感性低1.6倍，对吡虫嗪的敏感性低近0.7倍。瓜蚜无性繁殖。两个种群对吡me嗪的敏感性差异不大。还建议应在区域范围内进行连续的抗药性监测，以鉴定应用于这种昆虫物种的化合物的效率。

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