NUMCHUK QUAD Herbicide 1L – Comprehensive Weed Control for Gardens and Farms

NUMCHUK QUAD (ProForce Numchuk Quad Herbicide) contains 350 g/L terbuthylazine, 100 g/L glyphosate (as the isopropylamine salt), 60 g/L amitrole and 15 g/L oxyfluorfen, sold in 1L and 20L packs. The label copy we read lists fencelines, roadsides, railway lines and commercial and industrial areas, including building lines, rights of way, powerlines and substations, aerodromes and public utilities. Domestic gardens and lawns are not mentioned. The label says it provides knockdown control and residual control of most annual, perennial and broadleaf weeds for 8 to 12 months, depending on soil type and rainfall. Signal word: POISON.

It will damage plants you want to keep, and it stays in the soil. The label says not to apply if sensitive crops, gardens, landscaping vegetation, protected native vegetation or protected animal habitat are within 25 metres downwind of the area. Do not apply to waterlogged soil, and do not apply if heavy rain or storms likely to cause run-off are forecast within 3 days. Heavy rain on light soils can move the product out of the weed seed zone and reduce control.

How to use it. See the Application Rates tab and our mixing rates guide. Do not spray with droplets smaller than a COARSE spray droplet size category, do not spray when the wind is under 3 or over 20 km/h, and do not spray during surface temperature inversion conditions. The label requires an accurate written record of each spray application. It says 20 to 30 mm of rain within 2 to 3 weeks is needed to wet the soil through the weed root zone.

Before you buy. The label says it is very toxic to aquatic life: do not contaminate wetlands or watercourses, and do not apply if aquatic or wetland areas, including ponds, streams and rivers, are within 50 metres downwind. When opening the container and preparing the spray, wear cotton overalls buttoned to the neck and wrist, elbow-length chemical-resistant gloves and a half face-piece respirator. Do not enter treated areas until the spray has dried unless wearing protective clothing. Poisons Information Centre: 13 11 26.

Delivery from $17, priced by weight and postcode at checkout.