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甘蔗生长期长,从下种出苗后一直到收获,的各个时期均受到害虫特别是螟虫的威胁,影响甘蔗产量。螟害引起的损失与甘蔗生长发育的各个时期有很大的关系,究竟那个阶段影响最大?甘蔗生长发育各个阶段的表现怎样?值得探讨。目前广大沙围田蔗区种植的品种主要是粤蔗7号(粤糖57/423),同时苗期又间种花生或黄豆,在此条件下,甘蔗生长发育的各个时期螟害的发生与影响如何?值得研究。本项研究的目的在于了解主茎死亡时间和原因;
Sugar cane growth period, from the next species after emergence until harvest, at all times by pests, especially the threat of stem borers, affecting sugar cane production. The damage caused by stem borer and sugar cane growth and development of each period has a great relationship, after all, the most influential stage that? Sugar cane growth and development of the various stages of performance? It is worth discussing. At present, the varieties cultivated in the field of sugarcane are mostly cane sugarcane (Guangdong sugarcane 57/423) and peanut or soybean in the seedling stage. Under these conditions, the occurrence of stem borers How is the impact? The purpose of this study is to understand the main stem death time and causes;