Effects of the entomopathogenic fungi Beauveria bassiana, Verticillium alfalfae, and Trichoderma viride; secondary metabolites of MS1 (B. bassiana) and MS2 (V. alfalfae); and Dimethoate active substances on the aphid species, Aphis gossypii Glover (Hemiptera: Aphididae), were tested. Fungus isolates were prepared as 107 conidia ml−1 of spore suspensions and applied on the 2nd instar nymphs of A. gossypii. After the applications, evaluations were made on the 1st, 3rd, 5th, and 7th days by counting the live individuals. Obtained data were 100 and 93% mortality rate at MS1 (B. bassiana) and MS2 (V. alfalfae), and secondary metabolites were recorded in the 3rd day count results. On the 5th day counts, the highest mortality rates after secondary metabolites were statistically at the same group with B. bassiana, T. viride, and dimethoate. On the 7th day, counting results of all experiment groups were analyzed statistically and were found effective. Obtained results showed that the fungal secondary metabolites might be useful when utilized as a biocontrol agent against the aphids.

中文翻译：

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某些昆虫病原真菌对蚜虫，棉蚜（Aphis gossypii Glover）（半翅目：蚜科）的影响

昆虫病原真菌球孢白僵菌，苜蓿黄萎病菌和绿色木霉的影响；MS1（B. bassiana）和MS2（V. alfalfae）的次生代谢产物; 测试了蚜虫物种棉蚜（Hemiptera：Aphididae）上的乐果活性物质。将真菌分离物制备为107分生孢子ml-1的孢子悬浮液，并将其应用于棉铃虫的第二龄若虫。申请后，在第一，第三，第五和第七天通过计算活体个体进行评估。获得的数据分别是MS1（B. bassiana）和MS2（V. alfalfae）的死亡率为100％和93％，在第3天计数结果中记录了次生代谢产物。在第5天的计数中，与B. bassiana，T。viride和乐果在同一组中，次生代谢产物的最高死亡率在统计学上是相同的。在第七天 对所有实验组的计数结果进行统计学分析，发现是有效的。所得结果表明，真菌次生代谢物用作抗蚜虫的生物防治剂可能有用。