论文部分内容阅读
以梨小食心虫诱芯为试材,采用5点取样法统计梨小食心虫发生数量,研究了春耕、间作花生、地势、树势等因素对梨小食心虫发生规律的影响。结果表明:春耕可以减少梨小食心虫数量,间作花生对于梨小食心虫的数量无显著影响,地势对梨小食心虫的影响是山顶数量多于山腰,树势对梨小食心虫影响较大,树势越好梨小数量越多。这些结果可为梨园中科学合理使用农业措施防治害虫提供参考。
The pear heartworm attractant was taken as the test material, and the number of occurrence of the heartworm was determined by 5-point sampling method. The effects of spring plowing, intercropping peanut, topography and tree vigor on the occurrence regularity of pear borer were studied. The results showed that: the spring plowing could reduce the number of pests, the intercropping peanuts had no significant effect on the number of pests, and the topography had more influence on the pest moth than that on the mountainside. The better the small number of pear. These results can provide a reference for pear orchards in scientific and rational use of agricultural measures to control pests.