˹͹Ááµ emerald ¼Ùé·ÓÅÒ»èÒáÅÐÃкº¹ÔàÇÈ
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It seemed like ideal weather to kill an unwanted insect. But it did little to stop the emerald ash borer, an invasive Asian beetle that is devastating ash trees from Minnesota to New York.
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“We didn’t find a single dead larva,” said Deborah G. McCullough, a professor of entomology and forestry at Michigan State, who led a study of ash trees in Lower Michigan over the winter. "àÃÒäÁ辺µÑÇÍè͹µÒÂà´ÕèÂÇ" à´âºÃÒËì¨ÕáÁ硤ÑÅÅçÍ¡ÈÒʵÃÒ¨ÒÃÂì¡Õ¯ÇÔ·ÂÒ»èÒäÁéáÅзÕèÃÑ°ÁÔªÔ᡹·Õè¹Ó¡ÒÃÈÖ¡ÉҢͧµé¹äÁéà¶éÒ ·Õè ÁÔªÔ᡹㹪èǧĴÙ˹ÒǴѧ¡ÅèÒÇ
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Create Date : 03 ¡Ã¡®Ò¤Á 2557 |
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