西花蓟马在月季不同种植模式下的种群发生特点
The population dynamics of Frankliniella occidentalis in roses grown using different methods
李向永**,陈福寿,赵雪晴,尹艳琼,谌爱东***
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作者单位：云南省农科院农业环境资源研究所昆明650205
中文关键词：西花蓟马， 种群动态， 种植模式， 月季
英文关键词：Frankliniella occidentalis, population dynamics, planting mode, Rosa hyrida
中文摘要：西花蓟马Frankliniella occidentalis (Pergande)是昆明花卉种植区主要害虫之一，本文对西花蓟马在不同月季品种和不同种植模式下的种
群发生特点进行了3年的调查。结果表明，西花蓟马在昆明全年发生，5—7月份是全年的发生高峰期。大棚栽培方式下，发生高峰期的虫量平
均为87头/朵花；露地模式下西花蓟马的发生高峰期较大棚模式提前20～30 d，发生高峰期的虫口密度为90头/朵花。t\|测验结果表明，
两种种植模式间在005水平显著差异（P<005）。西花蓟马在不同品种上的种群消长动态基本一致，艳粉上的峰值密度平均为61头/朵花
，超级品种上为75头/朵花, 差异不显著。
英文摘要：Western flower thrips (WFT) Frankliniella occidentalis (Pergande) is the most serious pest of Rosa hybrida (L.) in Kunming.
We observed the population dynamics of WFT in roses grown using two different methods in the year 2006-2008. We found that
WFT occurred throughout the year with a population peak between May and July. This peak was observed earlier (20-30 days) in
roses grown in the field than in those grown in the greenhouse. The population peak density in greenhouse roses was 87
thrips/flower, while peak density in field roses was 90 thrips/flower. The difference between these population densities
was found to be significant (P<005) using the ttest. In both cultural varieties of rose studied (′movie star′ and ′
carola′) WFT population dynamics were similar. Population peak densities were 61 thrips/flower and 75 thrips/flower,
respectively but this difference was not significant.