Farmers who want improved pasture production, persistence and animal performance from their ryegrass pastures should use AR37, especially where damaging insects are likely to be present. Trials that have been undertaken to date show it is a suitable pasture for dairy cows, beef animals and can be used for sheep grazing provided farmers are aware it can cause ryegrass staggers.
AR37 is available in a range of ryegrass cultivars from Agricom and PGG Wrightson Seeds.
To find out what will work best for you, contact your local agronomist or rural retailer.
All existing ryegrass plants should be removed from the paddock (using spraying and/or cultivation) before planting ryegrass with AR37 endophyte. Re-establishment of old ryegrass plants will not result in failure but can reduce animal performance (if old ryegrass has standard endophyte), pasture production and possibly persistence.
The perfect endophyte would provide excellent resistance against all pasture insects leading to more persistent and higher yielding ryegrass plants, without having any potential detrimental effects on animal health and production.
At the moment AR37 endophyte is the closest to this as ryegrass with AR37 endophyte provides considerable agronomic advantages over all commercially available endophytes, however, it can cause ryegrass staggers.