Wild radish

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Tactics for integrated weed management

Table 1 Tactics that should be considered when developing an integrated plan to manage wild radish
Management tactic Most likely % control (range) Comments on use
Herbicide-tolerant crops 90 (80–99) Herbicide-tolerant canola is essential in wild radish infested areas
Burning residues 70 (20–90) In concentrated windrows. Use a hot fire and back-burn into the wind
Autumn tickle 45 (15–65) Follow-up rain needed for better response
Knockdown (non-selective) herbicides for fallow and pre-sowing control 80 (70–90) Add carfentrazone, 2,4-D ester or a Group B herbicide for more reliable control. Late germinations will not be controlled
Selective post-emergent herbicides 90 (70–99) Apply to young and actively-growing weeds. Repeat if necessary to control late-emerging weeds or survivors
Spray-topping with selective herbicides 80 (70–95) Wild radish may regrow if there are late rains. Good for seed-set control
Wiper technology 70 (50–80) Has potential in low-growing pulses
Silage and hay — crops and pastures 80 (70–95) Cut before embryo formation in developing wild radish seed. Graze or spray regrowth
Renovation crops and pastures — green manuring, brown manuring, mulching and hay freezing 95 (90–100) Brown manuring more efficient than green manuring and more profitable. Hay freezing works well and is the most profitable manuring option in most cases
Grazing — actively managing weeds in pastures 70 (50–80) Rotationally graze and use spray-grazing
Weed seed collection at harvest 75 (65–85) Variable results
Sow weed-free seed 95 (90-100) Very important as resistance in wild radish is increasing and introduction via crop seed is increasingly likely

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