论文部分内容阅读
室内毒力测定结果显示,甲基硫菌灵和咪鲜胺按1∶5比例混配,对水稻稻瘟病病菌的共毒系数达233,增效极明显。用42%咪鲜.甲硫灵可湿性粉剂40g/667m2、60g/667m2、80g/667m2在水稻稻瘟病发病初期施药,可同时防治稻曲病,效果均显著,且大大降低施药工本;在水稻破口时用药,防治效果好于常规使用的井冈霉素、三环唑;且随用药量的增加其防治效果上升,但经济有效的用药量以40～60g/667m2为宜。
Indoor toxicity test results show that thiophanate methyl and prochloraz 1: 5 ratio of the mixture of rice blast virus Co-toxicity coefficient of 233, the synergistic effect is very obvious. 40%, 40%, 60%, 60%, 66%, 80%, 667m2 of 42% imidacloprid could enhance the resistance of rice false smut to the control of rice false smut at the same time. When the rice was broken, the control effect was better than that of conventionally used validamycin and tricyclazole. With the increase of dosage, the control effect was increased, but the effective dosage was 40 ~ 60g / 667m2.