【摘要】 0.3%印楝素EC配合印楝渣使用对静水温泉水蝇(Scatella tenuicosta)和瓜苗蕈蚊(Lycoriella pleu-roti)有一定的防效。其中印楝渣与基质体积比为1∶4,并结合喷施0.3%印楝素EC 600倍稀释液的处理防治效果可达69.1%。印楝渣与0.3%印楝素EC配合使用对西瓜苗生长有明显的促进作用,苗高及苗叶数增加,瓜苗长势比纯育苗基质(对照)的好。特别是1∶2比例处理的瓜苗比对照高8.18 cm,西瓜苗叶片数平均增加0.93片;但该处理的瓜苗颜色明显比其他处理的偏黄。更多还原

【Abstract】 The use of 0.3% azadirachtin EC and Azadirachta indica residue had control effect on Scatella tenuicosta Bennison and Lycoriella pleuroti Yang et Zhang.Matrix in which the volumn ratio of A.indica residue to base was 1∶4,combined with 0.3% azadirachtin EC 600 times spraying had a prevention effect up to 69.1%.Application of 0.3% azadirachtin EC and A.indica residue played a significant role in promoting the growth of watermelon seedlings.Seedling height and leaf number was increased compared with the control.Especially the 1∶2 ratio treated seedling was 8.18 cm higher than the control while the average number of watermelon leaves was increased by 0.93;but the 1∶2 ratio treatment was significantly yellower than other treatment.更多还原