论文部分内容阅读
白粉病是橡胶树叶部的一种严重病害,海南每年都有不同程度的发生和流行,影响胶树生长和胶乳产量。长期以来,应用325筛目硫磺粉防治,效果明显,但这种粉粒较粗,易被雨水冲刷,因而硫的利用率低,用量大,药费占防治费用的70％以上,为了提高硫利用率,减少硫磺粉用量,我们用中国农业科学院植保所提供该所研制的硫悬浮剂,在海南农垦橡胶研究所(下简称橡胶所)西联、南棒农场进行防治
Powdery mildew is a serious disease of the rubber leaves, Hainan each year have varying degrees of occurrence and prevalence, affecting gum growth and latex production. For a long time, the use of 325 mesh sulfur powder prevention and treatment, the effect is obvious, but the coarse particles, easy to be washed by the rain, and therefore the utilization of sulfur is low, a large amount of drugs accounted for prevention and control costs of more than 70% Utilization, reduce the amount of sulfur powder, we use the Institute of Plant Protection, Chinese Academy of Agricultural Sciences to provide the development of the SCT, Hainan Farms Rubber Institute (hereinafter referred to rubber) Western Union, South stick farm control