Reddy G V
Department of Ecology and Environmental Science, University of Kuopio, P.O. Box 1627, FIN-70211 Kuopio, Finland.
Exp Appl Acarol. 2001;25(12):985-92. doi: 10.1023/a:1020661215827.
The effect of an integrated pest management (IPM) package, host plant resistance, Chrysoperla carnea predation and neem oil were evaluated against the spider mite Tetranychus ludeni on eggplant (Solanum melongena L.) fields in 1996 and 1997, by estimating the mite population density and yield levels. Compared with the IPM package (Panruti local, C. carnea plus neem oil), the standard (susceptible) eggplant variety (MDU1) grown by farmers and treated with an acaricide (dicofol) had significantly higher mite densities. The predator C. carnea was recorded in significantly lower numbers in plots with the standard variety compared to a resistant variety (panruti local) with the full IPM package. Eggplant yield level and crop value were highest in the IPM-treated plots followed by Panruti local plus C. carnea. The standard variety treated with an acaricide had the lowest yield and value. These results indicated the usefulness of host plant resistance complemented by biorational control agents, such as C. carnea and neem oil, that these are suitable components in an IPM programme for managing the spider mite in endemic areas.
1996年和1997年，通过估计螨类种群密度和产量水平，对综合虫害管理（IPM）套餐、寄主植物抗性、大草蛉捕食作用和印楝油在茄子（茄属龙葵L.）田防治卢氏叶螨的效果进行了评估。与IPM套餐（潘鲁蒂本地品种、大草蛉加印楝油）相比，农民种植的用杀螨剂（三氯杀螨醇）处理的标准（易感）茄子品种（MDU1）的螨类密度显著更高。与采用完整IPM套餐的抗性品种（潘鲁蒂本地品种）相比，标准品种地块中大草蛉的数量显著更少。IPM处理地块的茄子产量水平和作物价值最高，其次是潘鲁蒂本地品种加大草蛉。用杀螨剂处理的标准品种产量和价值最低。这些结果表明寄主植物抗性辅以如大草蛉和印楝油等生物合理防治剂的有效性，这些是流行地区管理叶螨的IPM计划中的合适组成部分。
