2020 Volume 64 Issue 2 Pages 74-78
The effects of red-light irradiation and a reflective sheet cover on the population density of two thrips species（Thysanoptera: Thripidae）, the melon thrips（Thrips palmi Karny）and the onion thrips（Thrips tabaci Lindeman）, were investigated on eggplant and cucumber in a greenhouse in 2014 and 2015. Red fluorescent lamps were illuminated from above the plants and a light reflecting sheet was placed on the ridges of the treated plots. A greenhouse without either material was set up as a control plot. The population densities of the two thrips species on eggplant and T. palmi on cucumber were significantly lower in the treated plots than in the control plot.
