STUDIES OF FLUCTUATIONS IN INSECT POPULATIONS .13. AN IMPROVED METHOD OF ASCERTAINING THE CORRECT DATE TO SAMPLE WHEN ASSESSING LARVAL INFESTATIONS OF THE WHEAT-BLOSSOM MIDGES

被引:3
作者
BARNES, HF
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D O I
10.1111/j.1744-7348.1952.tb01020.x
中图分类号
S [农业科学];
学科分类号
09 ;
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页码:374 / 378
页数:5