sex board
sex board-
Analysis for two consecutive years , sex pheromone board can reduce the viral disease and disease index 34.4 and 23.6 % and above respectively , showing that the sex pheromone board can reduce the tomato virus disease incidence and disease index effectively .
连续两年分析发现，性信息素黄板可使番茄病毒病、病情指数分别降低34.4%和23.6%以上，表明性信息素黄板可有效降低番茄病毒病发病率及病情指数。