Dynamic Monitoring Of The Occurrence Of Fruit Borers In Apricot Orchards And Evaluation Of Control Effect Of Mating Disruption

Fruit borers are Lepidopteran moth insects that specialize in eating fruits,There are many types and mixed occurrence.Therefore the prevention and control is not timely,and the difficulty of prevention and control is doubled.During the development of the apricot industry in southern Xinjiang,there are still key technical problems such as serious occurrence of fruit borers,improper control period,and backward control technology.To this end,To this end,this article is based on the investigation of the types and dominant species of fruit borers,monitor the growth and decline of Grapholito molesta Busck and Crepholitha funebrana Treitschke in the apricot garden.At the same time,research has been carried out with sex attractant and mating disruption to control apricot orchard fruit borers.The main findings are as follows:(1)In the apricot orchard of Yingjisha,trapping experiments were carried out with sex pheromone lure such as Crepholitha funebrana Treitschke,Grapholito molesta Busck,Carposina sasakii and Cydia pomonella L.,etc.The results show:Grapholito molesta Busck has the largest number,accounting for 68.89%,Crepholitha funebrana Treitschke is the second largest,accounting for 30.02%,Cydia pomonella L.is very small,accounting for0.09%.(2)Monitor the occurrence of Grapholito molesta Busck and Crepholitha funebrana Treitschke by sex attractant trapping in the apricot orchard.The results show:The apricot tree blooms until the fruit is harvested,In the apricot orchard,Grapholito molesta Busck and Crepholitha funebrana Treitschke have two peaks of adults in a year.The first peak of adult is from late May to early June;The second peak of adult is mid-to-early June.(3)Tested the trapping effect of different types and different density traps on Grapholito molesta Busck and Crepholitha funebrana Treitschke,At the same time,the trap sticky insect board and the replacement period of the trap core were tested.The results show:In the experimental area with trap density of 4/666.67 m~2,8/666.67 m~2,and 12/666.67 m~2,the apricot moth rate before picking was 11.33%,7.20%,5.60%,respectively.For different traps,the best trap type is triangle trap.The replacement period of the sticky insect board and the trap has a great influence on the trapping effect.It is recommended to replace the sticky insect board every 7 to 10 days and the trap every 30 days.(4)Confusion direction and interference control for Grapholito molesta Busck and Crepholitha funebrana Treitschke respectively.The results show:The density of mating disruption is divided into 1 roots/plant,2 roots/plant,and 3 roots/plant,the disorientation rates for Grapholito molesta Busck and Crepholitha funebrana Treitschke are 87.42%/84.16%,91.51%/90.78%,95.29%/97.61%,respectively;The average fruit decay rate is 9.71%,2.76%,0.69%.visible,the mating disruption density of 3 roots/plant has the best control effect on Grapholito molesta Busck and Crapholitha funebrana Treitschke.