北方果区橘小实蝇蛆果无害化处理探索与实践OA

[Objective]This study was conducted to explore the harmless treatment technology suitable for orange fruit maggots in northern fruit areas,clarify the effects of different treatment methods,decay degrees,fruit varieties and negative pressure frequency on the treatment efficiency of maggots,and provide theoretical basis and technical references for thorough,efficient,and rapid treatment of maggot fruits to control the subculture harm of the insect.[Method]Using maggot fruit treated bags(MB)to explore the effects of disposal methods,decay degrees,fruit categories,and negative pressure frequency on the treatment effects of maggot fruits.[Result]Taking the peach fruit as an example,after 10 s of treatment with maggot fruit treated bags+negative pressure(MB+NP),with a negative pressure value of-60 kPa,the mortality rate of larvae in fruits reached 100%within 24 hours,the maggot fruit treated bags+sealing treatment(MB+ST)reached 14.45%,and the maggots treated bags+opening treatment(MB+OT)reached only 1.12%.The result of MB+ST was significantly higher than that of MB+OT,but significantly lower than that of MB+NP.This indicated that different disposal methods had significant differences in the mortality rate of larvae in maggot fruits.MB+NP could solve the problem of incomplete death of larvae in maggot fruits.Comparing the killing effects of different degrees of decay on B.dorsalis larvae under MB+NP and MB+ST,it could be seen that the two modes exhibited different characteristics.The effect of MB+NP was not affected by the decay degree of maggot fruits,and the mortality rate of larvae could reach 100%after 24 hours.However,the effect of MB+ST was closely related to the decay degree of maggot fruits and showed differences.For different fruits,peach,pear,apple,and jujube could achieve 100%insecticidal effect with one MB+NP.Pomegranates could improve their thoroughness by increasing the number of MB+NP,while MB+NP 2-3 times could achieve 100%killing effect.[Conclusion]Overall,it was believed that the combination of MB+NP had superiority in the treatment of maggots and could be widely applied.