摘要
为探明三七蓟马的发生规律,开展了历时3年的调查。调查表明三七蓟马在文山地区通常始见于3月下旬,终见于12月下旬。蓟马的发生有两个高峰期,分别集中在4月上旬至5月中旬、8月上旬至9月上旬,其中蓟马危害三七的主要时期是三七齐苗展叶期。在相同年份,虫口数量表现为三年七>二年七>一年七,说明大龄三七受害重于低龄三七。建议根据发生规律,对三七蓟马的防治采取预防为主、综合治理。
Three years’ investigation has been done in order to discover the occurrence regularity of Panax Notoginseng thrips. The survey shows that thrips usually start in the late March and end in the late December in Wenshan. There are two peaks of pest occurrence, distributing from the early April to the mid May and from the early August to the early September respectively. Damage caused by pests mainly occurs on full seed leaf stage. In the same year, the number of pest occurring to three-years-old plant is more than that to two-year-old and that to two-year-old plant is more than that to young age plant. The result shows that older plant victims are over younger plant victims. The paper suggests that the control be based on prevention ifrst and comprehensive treatment second.
出处
《文山学院学报》
2015年第3期1-3,共3页
Journal of Wenshan University
基金
国家自然科学基金项目"三七病毒病病原鉴定及发生规律研究"(31160360)
国家科技支撑计划项目"三七规范化种植基地优化升级及系列产品综合开发研究"(2011BAI13B01)
关键词
三七
蓟马
发生规律
调查
Panax Notoginseng
thrips
the occurrence regularity
investigation
