【摘要】 本试验肯定了6月5—10日为安徽省沿长江两岸水稻产区的中稻安全移植期的极限,过此后延,不仅螟害加重,且产量显著下降,同时水稻植株及稻桩内三化螟含虫量增多,虫口基数大,以致直接影响第二年三化螟前期发生量的增长,威胁水稻。 通过近年来大面积生产实践结果证实:中稻早栽避螟是农业栽培技术防治最好的治螟措施,具有治螟和增产的双重意义。更多还原

【Abstract】 The paddy borer, Schoenobius incertulas (Wlk.) is the most serious pest widely dis-tributed in the rice growing regions of Anhui province. It breeds three to four genera-tions a year. Its serious damage is done to the medium crop of rice in its third genera-tion. Experimental results and agricultural practice in the past few years have shownthat early transplanting of the medium crop of rice is the most economical method forcontrolling this insect. It is shown that advancing the transplanting date of the mediumcrop of rice prior to June 5--10th is affective in avoiding borer damage in the rice fieldsalong the Yangtze River in Anhui.更多还原