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近年,随着种植结构的调整,种植花生经济效益较好,豫南夏花生种植面积不断扩大,常年种植面积为30万hm2,主要分布在驻马店、南阳、周口等地。由于有些地块常年进行连作,再加适宜的气候条件和缺乏高效的防治措施,夏花空秕现象较普遍发生,对夏花生的产量影响很大。2011～2013年通过在驻马店市汝南县老君庙镇、新蔡县蛟停湖乡部分田块调查,夏花生空秕率在10%～30%,有的地块超过50%。
In recent years, with the adjustment of planting structure, the economic benefits of planting peanuts are good. The planting area of summer peanuts in southern Henan is continuously expanding. The perennial planting area is 300,000 hm2, mainly distributed in Zhumadian, Nanyang and Zhoukou. Due to the perennial continuous cropping of some plots, coupled with the suitable climatic conditions and the lack of effective prevention and control measures, the phenomenon of summer bloom is more common and the yield of summer peanut is greatly affected. From 2011 to 2013, some land plots in Laojunmiao Town, Runan County, Zhumadian City, and Jiaohanghu Township, Xincaizhixian County were surveyed. The peanut leave rate in summer peanut was between 10% and 30%, and some plots exceeded 50%.