AgPest Alert: 15 September 2020

Ordering grass seed? Select endophyte.

Region: All NZ

When ordering grass seed select suitable endophytes and check that the endophyte you select has been assessed in the grass variety you order. In ryegrass, AR1 and AR37, and diploids with NEA2, will protect against Argentine stem weevil, AR37, Endo5 and NEA2 against black beetle and AR37 against porina. See DairyNZ Pasture Renewal Guide for a guide to endophyte selection or the cultivar selector, Forage Value Index (FVI)

Endophyte levels in the seed should be at least 70% and have been assessed in the last 3 months.

Compensatory N applications may be needed due to clover root weevils 

Region: All NZ

In established pastures with high levels of clover root weevil, the clover may be adding little in the way of nitrogen to the pasture and compensatory nitrogen applications may be required.

Watch for clover flea damage and treat early

Region: Northland, Auckland, Waikato, Bay of Plenty

In Northern North Island watch for clover flea damage to clover and treat early if required to maximise effectiveness.


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