驻浙江某部科研小组研制成一种保护树木安全越冬的合成石灰水,用它涂刷在树上,不但能保暖而且还能杀虫灭菌。这种合成石灰水是用4％的硫磺,2％的乐果或敌敌畏,7％的草木灰和87％的石灰 A scientific research team in Zhejiang Province has developed a synthetic lime water that protects trees from overwintering. It is brushed on the trees to keep it warm and sterilizable. This synthetic lime water is made from 4% sulfur, 2% dimethoate or dichlorvos, 7% ash and 87% lime