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美国农业部的农业研究中心 ARS 正在研究的一种自然发生的真菌及其毒素,不久将可能与化学除草剂进行竞争。该毒素得自一种杀草真菌 Alternaria cassiae,将该真菌喷撒在大豆地里,可杀死镰果草而不伤害大豆植株。美国农业部南方杂草科学实验室(斯通维尔,麻省)的 Doug Boyette 将 Alternaria 撒在大豆实验田,杀死了这块田里的98％的镰果草。根据 ARS的粗略估计,这种草每年至少对大豆作物造成400万美元的损害。
A naturally occurring fungus and its toxins under research at the U.S. Department of Agriculture’s Center for Agricultural Research, ARS, will soon likely compete with chemical herbicides. The toxin comes from Alternaria cassiae, a fungistat that is sprayed in soybeans to kill sickle grass without damaging the soybean plants. Doug Boyette of the US Department of Agriculture’s Southern Weed Science Laboratory (Stoneville, MA) splashed Alternaria in a soybean field and killed 98% of the sickle grass in the field. According to a rough ARS estimate, this grass causes at least 4 million USD damage to soybean crops each year.