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Effects of chlorpyrifos and row spacing on frit fly (Oscinella spp. and Geomyza tripunctata Fall.), hymemopterous parasitoids and herbage yield in grassland in northern England.

Journal Title:
Tests of agrochemicals and cultivars.
Journal Volume/Issue:
Apr 1993. (14)
Main Author:
Umoru, P.A.
Format:
Article
Language:
English
Subjects:
Oscinella
Hymenoptera
parasitoids
natural enemies
adverse effects
chlorpyrifos
row spacing
crop yield
forage
View in NAL's Catalog:
IND20357754