摘要
小区和大田试验结果表明，稻瘿蚊危害中、晚稻造成的产量损失主要与有效穗的下降有关，而与每穗实粒数、秕粒数以及结实率无关；稻瘿蚊在中、晚稻分蘖初期的防治指标分别为标葱率１．１４％和１．０７％；经大田验证。
The plot and field test results indicated that,the yield loss of middle-season and late rice caused by O. oryzae had primary concern with the decline of productive panicles , and no concern with the filled, unfilled grains per panicle and setting rate; The control index of O. oryzae in early tillering stage in middle-season and late rice was 1.14% and 1.07% of galled rate respectively. which were verified to accord with the practice in the field.
出处
《江西农业学报》
CAS
1998年第2期33-37,共5页
Acta Agriculturae Jiangxi
关键词
稻瘿蚊
中稻
晚稻
危害损失
防治指标
Orseolia oryzae
Middle-season rice
Late rice
Damage loss
Control index
