CROP LOSS ASSESSMENT ON WINTER-WHEAT ATTACKED BY THE GRAIN APHID, SITOBION-AVENAE (F), 1974-1977

被引：80

作者：

GEORGE, KS ^{[1
]}

GAIR, R ^{[1
]}

机构：

[1] AGR DEV & ADVISORY SERV, CAMBRIDGE CB2 2DR, ENGLAND

来源：

PLANT PATHOLOGY | 1979年 / 28卷 / 03期

关键词：

D O I：

10.1111/j.1365-3059.1979.tb02630.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Experiments (49) were done during 1974-1977, on commercially grown winter wheat crops in England and Wales [UK] to investigate the effects on grain yield of feeding on the ear by the grain aphid, S. avenae. One spray of pirimicarb applied at the beginning of flowering when there were 5 or more aphids/ear and the number was rising gave an increase in grain yield of .apprx. 12.5%. Much lower increases were recorded when sprays were applied later than this growth stage or when the number of aphids did not reach the specified level.

引用

页码：143 / 149

页数：7