AR37 endophyte takes ryegrass pasture persistence and protection to a premium level.

Benefits of ryegrass with AR37 endophyte

• Provides the best balance of pasture production and persistence
• Higher tiller density over time
• Assists with post-drought recovery and improves agronomic performance
• Provides stronger control of more insect pests compared to ryegrass cultivars containing AR1 or standard endophyte
• May produce greater carcass weight per hectare compared to ryegrass cultivars containing standard endophyte (SE)
• Helps to provide a greater return on investment
• Increased total dry matter production compared to ryegrass cultivars containing AR1 or nil endophyte
• Has no Ergovaline so may increase milk production compared to endophytes containing high Ergovaline levels
• Increased sheep performance compared to ryegrass cultivars containing standard endophyte
• Low incidence of dags in sheep (similar to that of cultivars containing AR1 endophyte)

Limitations of ryegrass with AR37 endophytes

• AR37 varieties should not be used or fed to any other classes of stock other than sheep, beef and dairy (eg. grazing horses/monogastrics)

Endo5 has good pest control and no known risk of ryegrass staggers

Benefits of ryegrass with Endo5 endophyte

• Contains no Lolitrem B, the main cause of ryegrass staggers
• Produces less Ergovaline for increased milk production compared to endophytes containing high levels of Ergovaline (Standard Endophyte)
• Increased persistence compared to AR1 endophyte
• Pest and insect protection better than AR1

Limitations of ryegrass with Endo5 endophyte

• May produce lower animal performance levels over summer/autumn compared to ryegrass cultivars containing AR1 or nil endophyte

AR1 is a novel endophyte with no known animal health issues

Benefits of ryegrass with AR1 endophyte

• Delivers excellent animal performance
• Provides a moderate range of insect protection
• Increase in milk production compared to ryegrass cultivars containing standard endophyte (where ryegrass persists)

Limitations of ryegrass with AR1 endophyte

• Has demonstrated poorer persistence in areas with major insect pest pressure from Black Beetle and Root Aphid
• AR1 can be overgrazed, resulting in more stress on the plant which may affect long term pasture persistence

MaxP^® endophyte is a premium tall fescue protection with no known animal health impacts for beef, sheep and dairy.

Benefits of tall fescue with MaxP endophyte

• An endophyte that improves the ability of tall fescue pastures to handle pest attack and possibly moisture stress
• Aids persistence and performance of tall fescue
• No known adverse animal health effects in beef, sheep and dairy
   

Standard endophyte (SE)

Limitations of grass with Standard endophyte

• Contains Lolitrem B, the main cause of ryegrass staggers which can cause significant stock losses in some seasons
• Milk production may be lower in sheep, weight of lambs may be lower, and adult sheep consistently have lower bodyweight when grazing toxic pastures even when clinical staggers is not apparent
• Contains high levels of Ergovaline, which causes subclinical heat stress and is linked to other negative animal side effects

Other effects

• Scours/dags
• Affects weight gain
• Lower milk production
• Higher water intake
• General “ill thrift”
• Sub clinical heat stress

The Neotyphodium endophytes infecting these grasses are not known to be transferred with pollen or by physical contact (Siegel et al., 1984).

David E. Hume and David J. Barker 2005 GROWTH AND MANAGEMENT OF ENDOPHYTIC GRASSES IN PASTORAL AGRICULTURE. In Neotyphodium in cool-season grasses. Eds. CA Roberts, CP West, DE Spiers 201-226 Iowa, IA: Blackwell Publishing