@article{56ec2cc751e54993a14bec2536d15dbe,
title = "Episyrphus balteatus as a predictor of the aphid Sitobion avenae on winter wheat.",
keywords = "Aphididae, Episyrphus balteatus, functional response, pre‐oviposition period, rate of development, rhythmicity in feeding, sex ratio, Sitobion avenae, Syrphidae, winter wheat",
author = "G.W. Ankersmit and H. Dijkman and N.J. Keuning and H. Mertens and A. Sins and H.M. Tacoma",
year = "1986",
language = "English",
volume = "42",
pages = "271--277",
journal = "Entomologia Experimentalis et Applicata",
issn = "0013-8703",
publisher = "Wiley",
}