论文部分内容阅读
在自然条件下，田间试验结果表明，４种药剂，分别相隔０、１０、１５、１５ｄ喷施在重染椰子灰斑病椰苗上一次，共４次．在原叶和新叶上的防效是：１％等量彼尔多液为８３．１７％和８１．７０％，２５％多菌灵可湿性粉剂加水２００倍为７６．７９％和８４．２２％，３０％三铜糊剂加水４００倍为７９．０２％和８１．４６％，７５％百菌情可湿性粉剂加水４００倍为７０．６０％和７７．６２％。都具杀菌、保护的双重作用．以上浓度的４种杀菌剂用于大田防治椰苗灰斑病，效果也很好．
Under natural conditions, field trials showed that the four agents were sprayed on coconut leaf spotted coconut leaf spot on 0, 10, 15 and 15 days apart respectively for 4 times. The control effect on the original leaves and the new leaves was: 83.17% and 81.70% with 1% equal amount of Bilson and 25.7% with 200 times as much water as 76.79% and 84.22 times with water %, 30% three copper paste add water 400 times 79.02% and 81.46%, 75% Baitai wettable powder 400 times as water 70.60% and 77.62%. Both sterilization, protection of the dual role. The above concentration of four kinds of fungicides for the prevention and treatment of coconut leaf gray spot disease in the field, the effect is also very good.