英国最近发明了一种可帮助蚜虫天敌的装置──草蜻蛉过冬的保护箱。英因卡迪夫一家公司研制成功的这种保护箱装有一种特殊的植物激素引诱剂。当冬天即将来临时，人们将这补保护箱放在革精外活动的地方，这种差虫就会被成群地吸引到箱子中来过冬。开春后草叶岭便出来活动，大量 Britain recently invented a device that can help aphid natural enemies - the protective box of Lacewing wintering. Inventi Cardiff successfully developed a protective box equipped with a special plant hormone attractant. When the winter is approaching, people put the protective box in a place outside of the epidermis, where the bug gets lurched into the box to winters. After the spring grass leaves will come out activities, a lot