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1991年,甘薯粉虱 Besimm tabaci(Gennadius),又称烟粉虱、棉粉虱,在美国加利福尼亚爆发成灾,花椰菜、甜瓜、苜蓿等重要农作物全都遭到严重破坏,导致美国果菜价格上涨,工人失业,直接经济损失近2亿美元。为了弄清甘薯粉虱突发成灾的原因,美国科学家详细研究了该害虫的种群发生规律、危害特点,提出甘薯粉虱在美国至少有两种品系,这种流行的品系为“一品红品系”的假
In 1991, Besimm tabaci (Gennadius), also known as Bemisia tabaci (Gennadius), also known as Bemisia tabaci (Gennadius), broke out in California in the United States. All major crops such as cauliflower, melon and alfalfa were severely damaged. As a result, Unemployment, direct economic loss of nearly 200 million US dollars. In order to find out the causes of sudden onset of sweetpotato whitefly, American scientists studied in detail the population occurrence rules and harmful characteristics of the pest, and proposed that at least two strains of whitefly, Bemisia tabaci, are in the United States. The popular line is “Poinsettia” Fake