ProForce Numchuk Quad Herbicide

Numchuk Quad is a non-selective knockdown and residual herbicide featuring Quad Control Herbicide Technology to provide effective post and preemergence weed control for up to 12 months.

Numchuk Quad contains 100g/L Glyphosate, 60g/L Amitrole, 15g/L Oxyfluorfen and 350g/L Terbuthylazine – 4 herbicides from different mode of action groups.

Numchuk Quad is registered to control most annual, perennial and broadleaf weeds in commercial and industrial areas including rights of way, roadsides, railway lines, guideposts, powerlines and substations, aerodromes, public utilities and fencelines

Key Features & Benefits of Numchuk Quad Herbicide

• Contains Quad Control Technology, multiple modes of action, reducing potential weed resistance issues.
• Very effective on hard to kills weeds like Fleabane and Giant Rats Tail.
• Substantial labour saving for weed management on road and rail situations.
• Provides both knockdown and residual control – reducing need for additional tank mixes.
• Has strong activity on both grasses and broadleaf weeds.
• Provides long term residual control – up to 12 months or greater.
• Can be used via handgun or boom application.
• Safe to established trees and ornamentals, as long as spray drift doesn’t occur.

Mode of Action of Numchuk Quad Herbicide

Glyphosate, one of the active ingredients in Numchuk Quad Herbicide, controls weeds by inhibiting the activity of the EPSP enzyme (5-enolpyruvylshikimic acid-3-phosphate synthase), which is necessary for the formation of the aromatic amino acids within the plant. Amitrole’s mode of action isn’t well understood, but it is believed to be an inhibitor of several important enzymes. One of which is lycopene cyclase which is involved in carotenoid production. Carotenoids are essential components of photosynthesis, playing an important role in preventing photo-oxidative damage.

Oxyfluorfen targets a specific enzyme, protoporphyrinogen oxidase (PPO), in the chlorophyll pathway. Inhibiting PPO in plants leads to an accumulation of phototoxic chlorophyll precursors which, in the presence of light, rapidly disrupt cell membrane integrity. The mode of action for Terbuthylazine appears to be due to a herbicide-produced deficiency in the growth regulator photosynthtate, caused by inhibition of photosynthesis.

How to Apply Numchuk Quad Herbicide to Maximise Performance

• Don’t apply if heavy rains or storms that are likely to cause runoff are forecasted within 3 days. Avoid application to waterlogged soils.
• Don’t apply with spray droplets smaller than a course spray droplet size.
• Avoid application when wind speed is less than 3 or more than 20 kilometres per hour, as measured at the application site.
• Do not apply during surface temperature inversion conditions at the application site.
• For best results add 120mL/100L of water of a suitable adjuvant / surfactant.
• Application should give 8-12 months effective weed control. Duration and effectiveness of control depends on the amount of chemical applied, soil type, rainfall, weed species and other conditions.
• Sufficient rainfall (20 to 30 mm either as rainfall or irrigation) to wet the soil through the weed root zone is necessary within 2-3 weeks of application to make the product effective. A delay in rainfall beyond 3 weeks may result in weeds germinating from depth and surviving. Heavy rainfall on light soils may cause movement of the herbicide out of the weed seed zone, resulting in reduced weed control.