不同播插期和不同防治时期对水稻条纹叶枯病影响试验报告

摘要

The comparison experiment of rice stripe disease were made at the different dates of seeding and transplanting and control period,the result indicated that late seedling can lessen the rice stripe disease,the earlier that treatment is begun,the better the outcome at the different control periods,the best time to control rice stripe disease were seedling stage and fast tillering stage with once medicament,then the medicament can be used 1-2 times combine other pest-control based on the survival of rice plant hoppers.At the same time it affected by numerous factors such as weather,varieties,virus carrier rate of rice plant hoppers and should be studied further.%通过不同播插期和不同防治时期对水稻条纹叶枯病影响对比试验,结果表明,晚育晚插水稻条纹叶枯病轻于早育早插;不同防治时期中,早防治轻于晚防治,最佳防治时期在水稻苗期和分蘖盛期各喷一次药效果比较好,以后可视田间稻飞虱存活量,再结合其它病虫防治喷药1～2次。同时,水稻条纹叶枯病还受气象、品种、稻飞虱田间带毒率等因素影响,有待进一步研究。