研究一种在亚洲发现的蝗虫的科学家认为,他们已得到重大发现,明白为何这种昆虫能以如此多的数量聚集在一起。科学家说,这种蝗虫在寻找一种高糖食物,相当于人类吃的垃圾食品。研究人员在《科学》杂志上发表了研究结果,称这种昆虫在含氮低的陆地上寻找这种食物。来自亚利桑那州立大学的研究负责人Arianne Cease说,这样这种蝗虫就易受氮肥的伤害,因为氮肥能促进富蛋白食物的增加。
"Our study suggests (that) sort of counter-intuitively that if we have an impending outbreak - so a large number of juveniles of this particular locust - (that) we could use nitrogen fertilizer to apply that to some of the localised outbreaks, and then that would actually suppress their numbers going into adults and would likely suppress future swarms."
“没想到的是,我们的研究发现,如果要有虫灾爆发,也就是大规模的这种蝗虫的幼虫,我们可以用氮肥来制止当地虫灾的发生,这就可以减少成长为成虫的幼虫数量,并可能抑制未来蝗虫泛滥的局面。”
The front-runner in the race to be the next president of France, the Socialist candidate Francois Hollande, says he can erase the country's public deficit and increase spending. Unveiling his manifesto, Mr Hollande said he'd increase tax on high earners but cut it for small businesses.