Biocontrol agent containing beauveria bassiana and application of biocontrol agent in prevention and treatment of tomato leaf miner

The invention discloses a biocontrol preparation and system for controlling tomato leaf miners and application thereof.The biocontrol preparation comprises beauveria bassiana and a food attractant, the food attractant comprises attractant substances and a solvent, and the attractant substances comprise tetradecenol acetate, ethyl caprylate, 1-nonanol, phenylacetaldehyde and 3-methyl-1-butanol. Through combined use of the food attractant and the beauveria bassiana, germination of conidia of the beauveria bassiana is not affected on the basis of increasing the attraction amount of the tomato leaf miner, so that the propagation efficiency of the tomato leaf miner on the beauveria bassiana is improved, and a continuous biological control effect is achieved. 本发明公开了一种防治番茄潜叶蛾的生防制剂、系统及其应用，所述的生防制剂包括球孢白僵菌和食诱剂，所述食诱剂包括引诱物质和溶剂，所述引诱物质包括十四碳三烯醇乙酸酯、辛酸乙酯、1-壬醇、苯乙醛和3-甲基-1-丁醇。通过联合使用食诱剂与球孢白僵菌，在增加对番茄潜叶蛾吸引量的基础上，同时，不影响球孢白僵菌分生孢子的萌发，从而提高番茄潜叶蛾对球孢白僵菌的传播效率，达到持续的生物防治效果。