枸杞炭疽病化学防治研究

Studies on Chemical Control of Anthracnose of Matrimony Vine

室内毒力测定证明:58％甲霜灵锰锌,75％百菌清,50％退菌特,70％代森锰锌,64％杀毒矾以及70％代森锰锌和75％百菌清(1∶1)混配对枸杞炭疽病菌有较好的抑菌效果。上述药剂田间防治效果为78～91.4％,其中,58％甲霜灵锰锌1500ppm和70％代森锰锌75bpp+75％百菌清750ppm的防效最好,分别为89.6％和91.4％;其次是75％百菌清1500ppm和70％代森锰锌1500ppm,防效分别为85.6％和82.2％,可推广应用。

The studies of toxicity test in laboratory showed that 58% metalaxy, 70% chlorothalonil, 50% tuzet, 70% mancozeb, 64% oxadixyl and 70% mancozeb +75% chlorothalonil(1: 1) had effects on inhibiting the fungus of anthracnose of matrimony vine. The control effectiveness of the above fungicides ranged 78.0～91.4% in the field test. Among them, 1500 ppm 58% metalaxyl and 750 ppm 70% mancozeb +750 ppm 75% chlorothalonil showed very good effects of controlling the fungus(89.6% and 91.4% respectively). 1500 ppm 75% chlorothalonil and 1500 ppm 70% mancozeb also showed promising effects(85.6% and 82.2% respectively).