单植和混栽苹果园梨小食心虫发生动态及预测方法研究  

The occurrence dynamic and forecasting method of Grapholitha molesta Busck in single and mixed apple orchards

作　　者：吕兴[1] 李进[1] 闫峰[2] 祝海坡 曹克强[1] 王勤英[1] 

机构地区：[1]河北农业大学植物保护学院,河北保定071000 [2]河北省保定市气象局,河北保定071000 [3]河北德胜农林开发有限公司,河北定州073000

出　　处：《河北农业大学学报》2013年第5期86-89,共4页Journal of Hebei Agricultural University

基　　金：河北省科技计划项目(11230605D-2-3);国家苹果产业技术体系(nycytx-08-04-01);公益性农业行业项目(200903042-5)

摘　　要：2009-2012年利用性诱剂诱捕器系统调查了单植和混栽苹果园梨小食心虫的发生动态。结果表明:梨小食心虫在保定苹果园1年发生4代,其越冬代成虫发生高峰期在4月中下旬,第一代成虫发生高峰期在5月底至6月中旬,第二代和第三代成虫发生高峰期分别在7月中下旬和8月中下旬,其中越冬代成虫发生均较其它世代整齐。与单植苹果园比较,混栽苹果园内梨小食心虫各代成虫发生期持续时间较长,夏季世代的世代重叠更严重,各代间无明显的界限。利用2009-2012年保定地区的监测资料和气象资料,统计出梨小食心虫越冬代成虫达到发生高峰时所需10℃以上积温值为(98.19±21.05)(日/度),用此积温值预测2013年梨小食心虫越冬代成虫发生高峰日期,预测结果与实际发生日期相符。Grapholitha molesta Busck （Oriental fruit moth,OFM）, a major pest of stone fruits, was systematically monitored by pheromone trapping of male moths in order to know the occurrence regularity of this pest in a single apple orchard and a mixed orchard in Baoding, China during 2009 to 2012, respectively. The results showed that the OFM had four generations per year in Baoding. The adult flight peaks of the overwintering generation, the first generation, the second generation and third generation occurred in the middle to late of April, late of May to middle June, middle to late July, middle to late August, respectively. The adult emerging period of OFM overwintering generation was briefer with an obvious peak than summer generations in both orchards. Compared with the OFM population in the single apple orchard,generational overlaps of the OFM population of summer generations in the mixed orchard were more serious. The relationship between the peak date of OFM overwintering generation flight and 〉10℃ degree-day accumulations was analyzed using monitoring data and meteorological data from 2009 to 2012 in Baoding area. The statistical results indicated that 〉10℃degree-day accumulation of the peak of OFM overwintering generation flight needed （98.19±21.05） DD. The peak date of OFM overwintering generation flight in 2013 was predicted by this degree-day accumulation value. The predicting result was tallied with the actual date.

关 键 词：梨小食心虫 性诱剂 发生规律 苹果园 发育积温 

分 类 号：S436.612[农业科学—农业昆虫与害虫防治]