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随着种植结构的调整,麦棉套种已成为我省农业发展的重要市局,1989年种植120余万亩,约占全省植棉面积的十分之一。麦套棉田的生态条件不同于单作棉田,其病虫害发生的特点也将有所改变,因此,应制定相应的综防措施,以保证棉花生产实现优质高产。一、病虫发生特点由于麦套棉田生态环境的影响,使天敌与害虫产生制约作用,通常病虫为害轻于单作棉田,亦有些
With the adjustment of the planting structure, wheat-cotton intercropping has become an important market for the development of agriculture in our province. In 1989, more than 120 mu of land was planted, accounting for about one-tenth of the total area of cotton in the province. The ecological conditions of wheat-cotton field is different from that of single-field cotton field. The characteristics of the occurrence of pests and diseases will also be changed. Therefore, corresponding comprehensive prevention measures should be formulated to ensure high-quality and high-yield cotton production. First, the characteristics of pests and diseases As a result of the ecological impact of wheat cotton fields, natural enemies and pests have a restrictive effect, pests and diseases are usually lighter than single cotton, but also some