吉林省农安县靠山公社,采用白僵菌粉封垛消灭玉米螟越冬幼虫,取得了良好的防治效果。去年,全公社封垛54,075立方米,玉米螟幼虫死亡率比对照增加37～91%,越冬虫量减少90.8～97.7%。消灭了虫源,降低了田间玉米螟的为害。 1.封垛时间:春季封垛应在玉米螟羽化之前进行,最晚不晚于5月中、下旬。秋季可随垛随封。 2.封垛方法:先用木棍在秸秆垛上插一个较深的洞.将手摇喷粉器插 Nong’an County, Jilin Province by the commune, the use of Beauvoleus powder sealed pile over-wintering corn borer larvae, and achieved good control effect. Last year, the entire community closed the pile 54,075 cubic meters, the mortality of corn borer larvae increased by 37 to 91% over the control, the number of overwintering pests reduced 90.8 to 97.7%. Eliminate the source of insects, reducing the damage of corn borer. 1. Envelope time: the spring closure should be carried out before the corn borer eclosion, no later than mid-May, late. Autumn can pack with the closure. 2. Sealing method: first with a wooden stick in the straw pile inserted a deeper hole will hand duster plug