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Your Position ：Home->Past Journals Catalog->2001 Vol.4

A study on the Q equation of pesticide ecological safety coefficient.
Author of the article:FU He-Yu
Author's Workplace：(Beijing Education Institute, Beijing100011, China).
Key Words：Q equation; ecological safety coefficient; insecticide; English grain aphid; lady beetle
Abstract：Toxicities of three insecticides, pirimicarb, dimethoate and fenvalerate, to both English grain aphids, Macrosiphum avenae(Fabricius), and larvae of lady beetle, Coccinella septempunctata Linnaeus, collected from winter wheat field were assa
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