摘要
【目的】明确郑州地区桃园梨小食心虫发生规律、危害特点及适宜应用的最佳诱捕器类型,为梨小食心虫科学防治提供理论依据。【方法】以国家果树种质郑州桃圃为试验园,利用梨小食心虫性信息素诱芯制作的不同诱捕器诱捕梨小食心虫成虫,结合田间折梢率和蛀果率调查及气象资料记录,进行数据分析。【结果】梨小食心虫在郑州地区包括越冬代在内一年发生6代,2、3世代种群数量最大,越冬代与第1世代间界限明显,后面4个世代存在明显世代交替;梨小食心虫以幼虫危害新梢和果实,最大折梢率和蛀果率发生期分别与梨小食心虫幼虫的大量发生期相对应;郑州桃园梨小对自动补水型诱捕器选择性更强,相同条件下,用该诱捕器诱捕到的梨小成虫较多。【结论】针对梨小食心虫的发生规律和危害特点,适合郑州桃园梨小食心虫诱捕的诱捕器为自动补水型。
[Objective] The aim of the study was to clarify oriental fruit moth （Grapholita molesta Busck）＇ s occurrence dynamics, damage characteristics, appropriate application of the best types of catchers in Zhengzhou peach orchards. [Method] The experiment was designed and conducted in the National Peach Repository in Zhengzhou. The number of oriental fruit moth trapped by different types of catchers was surveyed every day, and the rate of damaged shoot and the rate of bored fruits caused by larvae of oriental fruit moth were surveyed every week. The above data together with the recorded meteorological data in the field were comprehensively analyzed. [Result] Six generations including overwintering generation of ori- ental fruit moth occurs in Zhengzhou peach orchard in one year, of which, the populations of the second and third generations are the most. The dividing line exists between the overwintering generation and the first generation, but metagenesis commonly occurs in the subsequent generations. This pest prefers to activities under the higher air humidity. In the field, the rate of damaged shoot and the rate of bored fruits caused by larvae are corresponding to the emergence period when the larvae massively appear. The adult of oriental fruit moth shows great endearment to water-automatically-supplied catcher, in the same condi- tion, which is able to trap more adult pests than other catchers. [Conclusion] Oriental fruit moth＇s occurrence dynamics and damage characteristics in Zhengzhou peach orchard are basically defined, and the water-automatically-supplied catcher is the most efficient type for trapping the pest.
出处
《果树学报》
CAS
CSCD
北大核心
2014年第2期282-287,共6页
Journal of Fruit Science
基金
国家现代农业产业技术体系桃产业体系(郑州桃综合试验站CARS-31-Z-10)
关键词
桃园
梨小食心虫
发生规律
性信息素
诱捕器
Peach orchard
Oriental fruit moth
Occurrence regularity
Sex pheromone
Catcher
