多抗霉素3.5%水剂防治水稻稻瘟病田间药效试验

The Controlling-test of Polyoxin 3.5% AS on Rice Blast

试验结果表明,在黑龙江省试验环境条件下,生物源杀菌剂多抗霉素3.5%水剂对水稻稻瘟病有较好的防治效果。多抗霉素3.5%水剂26.25g(a.i.)/hm2对水稻稻叶瘟和穗颈瘟的防效分别为82.34%和72.14%;31.5g(a.i.)/hm2对水稻稻叶瘟和穗颈瘟的防效分别为95.03%和81.39%。试验剂量下,药剂对水稻生长安全。

The result showed polyoxin 3.5% AS had a good control effect on rice blast under the environmental condition in our province this year.The control effect of 26.25g （a.i.） /hm2 polyoxin 3.5% were 82.34% and 72.14% for leaf blast and spike blast, 31.5g （a.i.） /hm2 polyoxin 3.5% were 95.03% and 81.39%.Under the using dosage, polyoxin 3.5% AS was safe for flee.