近年来,小麦穗期蚜虫危害十分猖獗,严重者小麦单穗就有蚜虫数百头。蚜虫不仅直接吸食小麦植株的养分和水分,同时还分泌大量蜜露,引致腐生菌在小麦植株上形成黑色霉层而影响小麦的光合作用。若不及时防治,可造成小麦大幅度减产。 In recent years, the aphids in the wheat heading stage are very harmful. In severe cases, there are hundreds of aphids in a single ear of wheat. Aphids not only directly absorb the nutrients and water of wheat plants, but also secrete a large number of honeydew, causing saprophyts to form black mold layer on wheat plants and affect the photosynthesis of wheat. If not timely prevention and control, can cause a substantial wheat yield.