Effects of fungicides and insecticides applied to spring barley sown on different dates in 1976-79

A - Papers appearing in refereed journals

Jenkyn, J. F. and Plumb, R. T. 1983. Effects of fungicides and insecticides applied to spring barley sown on different dates in 1976-79. Annals of Applied Biology - AAB. 102 (3), pp. 421-433.

AuthorsJenkyn, J. F. and Plumb, R. T.
Abstract

Factorial experiments in 1976–1979 investigated the effects of sowing date, fungicides (ethirimol seed treatments and tridemorph sprays) and insecticides (phorate applied to the soil, and menazon or dimethoate sprays) on powdery mildew, aphids, barley yellow dwarf virus (BYDV) and grain yield of spring barley (cv. Julia in 1976 and 1977; cv. Wing in 1978 and 1979). Late sowing usually increased the severity of powdery mildew, numbers of aphids and incidence of BYDV and generally decreased yield. Responses to pesticides were commonly greater on the late‐sown than on the early‐sown barley. Response to fungicides are principally attributed to the control of powdery mildew (Erysiphe graminis f. sp. hordei; the target species) but responses to insecticides cannot be attributed to virus control and seem unlikely to be due solely to control of aphids, whose numbers were relatively small. There were some effects of fungicides on aphids and insecticides on mildew, but they were inconsistent and too small to affect crop protection strategies.

Year of Publication1983
JournalAnnals of Applied Biology - AAB
Journal citation102 (3), pp. 421-433
Digital Object Identifier (DOI)doi:10.1111/j.1744-7348.1983.tb02715.x
Open accessPublished as non-open access
Output statusPublished
Publication dates
Print01 Jun 1983
Online26 Feb 2008
Publication process dates
Accepted04 Jan 1983
Copyright licensePublisher copyright
PublisherWiley
ISSN0003-4746

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