The Trapping Effect of Two Attractants on Bactrocera dorsalis in Orchards
[Objective]The field monitoring of different attractants on Bactrocera dorsalis was carried out in apple orchards and pear orchards in Shouwang Hui Township Zhaotong City,Yunnan Province,in order to clarify the occurrence regularity of Bactrocera dorsalis in this area,and provide reference for scientific and efficient prevention and control of this pest in fruit tree production in Zhaotong City.[Methods]Two apple orchards and two pear orchards were selected in Shouwang Hui Township of Zhaotong City.Three trap points were set up in each selected orchard.Each trap point was hung with a ME sex pheromone trap and a food attractant for Bactrocera dorsalis.The field monitoring and comprehensive prevention and control experiments of Bactrocera dorsalis were carried out.The ME sex pheromone lure bottle was monitored once a day,and the prey fly food attractant was monitored twice a week,and the relevant data were recorded.The lure and food attractant were replaced every 7 days.[Results]The results showed that the monitoring and control effect of Bactrocera dorsalis feeding attractant on Bactro-cera dorsalis was better than that of ME sex pheromone,and the trapping amount of Bactrocera dorsalis feeding attractant on Bactrocera dorsalis was 1.8 to 1.9 times that of ME sex pheromone.The population of Bactrocera dorsalis in apple orchards and pear orchards began to increase from mid-August,and reached the peak from September to October.The main occurrence periods were September 8 to October 28,September 19 to October 23.[Conclusion]The trapping effect of food attractants on Bactrocera dorsalis is relatively good,followed by ME sex pheromone attractants.In the continuous green comprehensive pre-vention and control of Bactrocera dorsalis,food attractant control should be the main method,supplemented by sex attractant monitoring and control,so as to carry out comprehensive and efficient prevention and control of Bactrocera dorsalis.
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