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一九六五年,塔里木一场大面积防治地老虎,取得了保苗增产的显著效果:棉花断头及多株率从往年的30—70%降低到7%以下,平均1.6%;陆地棉司字1470保苗株数,平均达5,265株,最高5,816株;新海棉平均达到6,545株,最高7,600株;玉米枯心株率降低到0.5%以下;其他如桑苗、白菜等因彻底消灭了地老虎而获得丰产.本文就有关地老虎大田防治技术探讨如下.一、铲埂除蛹及糖浆诱蛾问题铲埂除蛹是防治地老虎的有效措施,但提倡多年,应用仍不够普遍.其主要原因:①铲埂与夏播时间冲突,加以人工铲埂功效低,不易贯彻;②越冬代蛹的主要所在地冬麦、苜蓿
In 1965, a large area of Tarim controlled land tigers achieved the remarkable effect of increasing seedling yield: the number of broken cotton plants and the rate of multiple plants dropped from 30-70% in previous years to below 7% with an average of 1.6% Word 1470 number of seedlings, an average of 5,265, the highest 5,816; new sponge average 6,545, the highest 7,600; corn seedling rate reduced to 0.5% or less; other such as mulberry, cabbage and other due to the complete elimination of the ground tiger And access to high yield.This article on the field of tiger field control technology as follows.First, shovel removal of pupae and syrup moth problem shovel removal of pupae is an effective measure to control the tiger, but advocated for many years, the application is still not enough common.The main reason : ① Shovel shovel conflict with the summer time to artificial shovel ineffective, difficult to implement; ② winter overwintering pupal winter wheat, alfalfa