@ARTICLE{Zhao_Limin_Quantitative_2006, author={Zhao, Limin}, volume={vol. 46}, number={No 4}, journal={Journal of Plant Protection Research}, pages={397-402}, howpublished={online}, year={2006}, publisher={Committee of Plant Protection PAS}, publisher={Institute of Plant Protection – National Research Institute}, abstract={Cephus fumipennis Eversmann is a key insect pest of wheat crops in Qinghai, China. Its field population densities were surveyed by using both the back-loaded insect vacuum and a sweep net. Mean densities in township-level were calculated and a quantitative relation, ŷ = 0.664 + 0214x, was established between the two sampling methods. The empirical relationship may be applicable in density monitoring and Integrated Pest Management program of the insect.}, type={Artykuły / Articles}, title={Quantitative relation between absolute and relative measures of Cephus fumipennis (Hymenoptera: Cephidae) densities}, URL={http://journals.pan.pl/Content/118574/PDF-MASTER/397-402_Quantitative%20relation.pdf}, keywords={Cephus fumipennis, population density, field survey, sampling methods, quantitative relation}, }