Control strategies for annual ryegrass toxicity

Authors

W J. BurdassFollow

Keywords

Annual ryegrass toxicity, Sheep, Disease control, Anguina agrostis

Disciplines

Agronomy and Crop Sciences | Sheep and Goat Science | Weed Science

First Page Number

7

Last Page Number

10

ISSN

0021-8618

Abstract

In 982-83, annual ryegrass tocicity (ARGT) was estimated to have cost Western Australian sheep farmers between $7 and $8 million in total economic losses.

The disease can severely disrupt farming operations. Sheep must be checked daily and if affected moved to a 'safe' paddock. The availability of paddock feed is reduced, as is stock carrying capacity. Worry about the possibility of dramatic stock losses, and uncertainty about what decisions to make, are all stressful.

Stock losses from ARGT can be minimised by the use of selective herbicides to control ryegrass in pastures and crops. This breaks the disease cycle - the nematode's life cycle - by substantially reducing gall formation and the amount of ryegrass present. Nematode reproduction must be controlled for at least two season to achieve the break.

Recommended Citation

Burdass, W J. (1986) "Control strategies for annual ryegrass toxicity," Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 27: No. 1, Article 3.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol27/iss1/3