摘要
为了研究甬优12杂交稻在余杭区病虫害发生特点,对甬优12与常规粳稻秀水134等的稻纵卷叶螟、稻飞虱、稻曲病发生特点进行了研究。结果显示:在同一防治水平下,甬优12田块稻纵卷叶螟虫苞量比秀水134高26.43%,虫口数量高45.03%;在不同时段稻飞虱百丛虫量分别是对照品种的5.4倍、5.1～11.0倍和4.7～6.6倍;在直播条件下,甬优12和秀水134感染稻曲病病穗数分别为6.60个·m-2和0.40个·m-2,可见甬优12杂交稻易受稻纵卷叶螟、稻飞虱和稻曲病危害,需要针对性的防治策略和药剂进行防治。
In order to research the characteristics of pests of hybrid rice Yongyou 12, characteristics of rice leaf roller, brown plant hopper and rice false smuton hybrid rice Yongyou 12, japonica rice Xiushui 134 and other japonica rice varieties were studied. The results showed that under the same treatment, insects involucred of rice leaf roller of hybrid rice Yongyou 12 was 26.43% higher than japonica rice Xiushui 134, live insects was 45.03% higher than japonica rice Xiushui 134; at different day in September, worms amount of 100 clusters of hybrid rice Yongyou 12 was 5.4, 5.1~11.0, 4.7~6.6 times than other japonica rice varieties; rice false smut panicles of hybrid rice Yongyou 12 and japonica rice Xiushui 134 were 6.60 and 0.40. Thus, hybrid rice Yongyou 12 was susceptible to rice leaf roller, brown plant hopper and rice false smut.
出处
《天津农业科学》
CAS
2012年第6期92-94,共3页
Tianjin Agricultural Sciences
基金
余杭区农业科技特派员项目"甬优12"高产植保
土肥等配套栽培技术研究(2012)
关键词
甬优12
病虫害
特点
研究
hybrid rice Yongyou12
pests
characteristic
