wheat aphids 第1页

Effects of enhanced UV-B radiation on population quantity dynamics of weeds,soil macroanimals and wheat aphids in the wheat field ecosystem STUDY ON THE RELATIONSHIPS AMONG WHEAT APHIDS, NATURAL ENEMY AND YIELD LOSS OF WHEAT AND THE ACTION THRESHOLD OF APHIDS Population dynamics of wheat aphids in different agricultural landscapes Effects of host density on parasitoids and hyper-parasitoids of cereal aphids in different agricultural landscapes Effects of landscape structure and key landscape factors on aphids-parasitoids- hyper parasitoids populations in wheat fields Forward trajectory analysis of wheat aphids during long-distance migration using HYSPLIT model