惠水县稻纵卷叶螟发生规律研究本科毕业论文.doc
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1、目录摘要.II关键词IIAbstractIIIKey wordsIII前言11 材料与设备21.1 调查地点与时间 .21.2供试田块21.3 仪器设备22 研究方法与步骤32.1 灯诱调查32.2 田间赶蛾调查32.3 世代划分标准33 结果与分析43.1 发生世代及虫源性质43.2 迁飞规律43.3 蛾峰期及高峰日54 讨论94.1 田间发生规律94.2 发生与环境的关系104.3 预测预报104.4 防治11参考文献13致谢142009年惠水县稻纵卷叶螟发生规律研究摘 要稻纵卷叶螟(Cnaphalocrocis medinalis)是惠水县水稻上的主要害虫之一,每年均造成不同程度的损失。
2、为了进一步摸清其发生规律,提高预测预报的准确性,有效地控制其危害。本研究从2009年6月-8月通过田间赶蛾方法对惠水县早栽、中栽、晚栽田稻纵卷叶螟进行了定时、定点的系统观察,以及田间灯诱调查,掌握此时期稻纵卷叶螟的田间蛾量(成虫为主)、蛾峰期及高峰日(主要为第四代、第五代),为进一步摸清惠水县稻纵卷叶螟的发生规律打下基础,为今后惠水县稻纵卷叶螟的防治提供可靠的理论依据。结果表明,从6月下旬至8月,受当地高温,高湿气候以及水稻种植结构、栽培条件的影响,惠水县主要受第四、第五代稻纵卷叶螟危害,田间蛾量有3个高峰期,第一个是迁入高峰期是5月中旬,第二个迁入高峰期是6月下旬末,第三个灯下高峰期是8月上
3、旬。高峰日在7月30日出现,每亩平均蛾量在1100头,分析了其发生规律及与栽培因素、水稻种植结构、人为因素、气候因素的关系,并明确了“狠治第3代,挑治四至五代”的策略,以减轻其灾害程度。关键词:稻纵卷叶螟 发生规律 惠水县Occurrence of Rice Leaf folder in Huishui in 2009AbstractLeaf roller (Cnaphalocrocis medinalis) is Huishui County,s major pest of rice, Each year, causing varying degrees of loss. To furthe
4、r clear of its occurrence, to improve the accuracy of forecasting, effective control of its hazards. In this study, in June 2009 -8 catch moths on the field way through the water on the benefits the county as early planting, the planting, late planting field leaf roller was timing, location of syste
5、matic observation, And the field light trap survey of the field to grasp the rice leaf roller moth period volume (mainly adults), moths and the peak day peak (mainly fourth-generation, fifth generation), To further ascertain the occurrence of rice leaf roller Huishui County law lay the groundwork fo
6、r future prevention and treatment of rice leaf roller Huishui County to provide a reliable theoretical basis.The results show that From late June to August, by the local high temperature, high humidity climate and structure of rice cultivation, Benefits of water main by the county fourth and fifth g
7、eneration of rice leaf roller damage, field moths volume three peak. The first is the peak period of May to move into the middle of the second peak is in June moved to the end of the end of the third lamp early peak is in August. Peak day occurred in the July 30, the average per mu in the 1100 volum
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