棉花苗期是棉花一生中非常重要的时期，搞好这个时期的田间管理能够为棉花丰收打下好的基础。除了加强肥水管理外，搞好病虫害防治是苗期管理的关键。棉花苗期的病虫害主要有棉蚜、苗病、地老虎、玉米螟等，这些病虫害在棉花苗期混合发生，轻者可以影响棉苗的生长发育，重者可 Cotton seedling is a very important period of cotton’s life, improving the field management during this period can lay a good foundation for the cotton harvest. In addition to strengthening fertilizer and water management, improving pest management is the key to seedling management. Cotton seedling pests mainly cotton aphids, Miao disease, to tiger, corn borer, etc., these pests and diseases occur in the cotton seedling stage, the light can affect the growth and development of cotton seedlings, weight may be