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近几年我县再生稻发展很快,而搞好再生稻的病虫防治,是生产上急待解决的问题。根据我们的调查,前季稻发生的病虫,一般也会在再生稻上发生,但以螟虫最为突出,轻害田可减产10～20%,重害田可减产50%以上,甚至颗粒无收。为此,我们进行了螟虫的发生和防治研究。一、再生稻螟虫发生调查1.再生稻螟虫发生种类:根据龙潭测报点的1976～1985年20瓦黑光灯诱蛾记录表明,当
In recent years, the rapid development of ratooning rice in our county, and do a good job pest control of ratooning rice, is the production of urgent problems to be solved. According to our survey, pests and diseases occurring in the first crop of paddy will generally occur on ratoon rice, but the most obvious is stem borers, which can reduce yield by 10-20% and heavy cropland yield by 50% or less Close To this end, we conducted a study on the occurrence and control of stem borers. A survey of regenerative rice stem borers 1. Regenerated rice stem borer types: According to Longtan measured point 1976-1985 20-watt black light lure moth records show that when