论文部分内容阅读
问:怎样防治烟地的小地老虎? 答:小地老虎俗称“土蚕”,初龄幼虫食烟苗心芽、嫩叶,形成孔洞缺刻,三龄后常咬断烟株造成缺苗,大量补苗后,烟苗生长不整齐,不便管理和采烤,影响产量和质量,是烤烟大田生长前期危害极大的主要害虫。防治方法:用90％敌百虫1斤兑水30斤,拌炒香的菜枯粉60斤,做成毒饵,傍晚撒在烟株周围诱杀。也可以在移栽后结合浇定根水、肥时,用50％辛硫磷1000倍液,每窝浇药液半斤左右或用50％辛硫磷800—1200倍液烟株下喷雾。若将毒饵诱杀与喷药配合使用,防治效果更好。
Q: How to control the small land tiger in the tobacco? A: Small tiger commonly known as “indigenous silkworm”, young larvae feed tobacco seedlings heart buds, young leaves, the formation of hole nicks, After a large number of seedlings, tobacco seedlings grow irregularly, inconvenient to manage and harvest, affecting the yield and quality, is a major pest of great harm to tobacco field growth. Prevention and treatment methods: 90% trichlorfon 1 pound watered 30 pounds, stir-fried dish of dry powder 60 pounds, made of bait, spread in the evening around the tobacco plant to kill. After transplanting can also be combined with pouring root water, fertilizer, with 50% phoxim 1000 times, about half a catty per litter pot or spray with 50% phoxim 800-1200 times liquid tobacco. If bait bait and spray used in conjunction with the control effect is better.