Forum Topic

  1. Chionochloa rubra subsp. cuprea. Basic red tussock.

  2. 28/10/2017 9:25:17 p.m. Ken Bannan
    (Non-member from Whakatane District)

    Grass weed control: what herbicide can be safely sprayed over Ch.ru to control grass weeds? We have a garden with 1000 Ch ru. We use picloram to control broadleaf weeds but also need an herbicide to control grass weeds while keeping the red tussock safe.
    Please set up a district of Eastern Bay of Plenty!

  3. 3/11/2017 5:21:55 p.m. Graeme Ure

    Ken, I I'k love to be corrected but I don't think you'll find a herbicide to do that.
    What I would do is mow the grasses first then as they recover but while still short
    spray with glyphosate at the lowest effective rate for the grasses to be controlled, using a coarse droplet nozzle and drift guard (cone over the nozzle). If you can't get a purpose made guard you can cut a small hole in a $2 bucket and cut the bucket to a length that doesn't affect the spray pattern. Hold the edge of the guard just off the grass to be sprayed.
    A horticultural advisor might be able to suggest a germination suppressant that will reduce the frequency of repeat treatments. Once you get canopy closure weeds shouldn't be a problem

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