S11E13 Beyond Resistance – Facing the Knockdown Challenge with Mitch Allen
October 12, 2026
Author
On this episode of Beyond Resistance, we’re joined by Mitch Allen, Commercial Technical Lead of Crop Protection at Nufarm. Mitch joins host Shannon Beattie to chat all things knockdowns!
Australian farmers are facing a period of adjustment to adapt knockdown strategies for up-front weed control at seeding, but we’re not on the ropes yet! Mitch says the mix and rotate pillar is only one part of the Big 6 toolbox which provides a framework for transitioning to challenges now and into the future.
Knowing your resistance status, getting timing and OSST technology right, using rotations, HWSC and crop competition, all support the chemical tactics to ensure each mixing partner is pulling its weight in the spray tank.
The challenge is knowing when you’re onto a good thing – don’t stick to it! Building good stewardship strategies for herbicide use helps ensure new knockdown and mixing partner registrations are here for a long time and a good time!
In this episode Mitch discusses why ammonium sulfate is a non-negotiable with glyphosate, what drives the success of paraquat and group 14 mixes, and why more products in the tank is not always the answer!
Shannon and Mitch also discuss how some pre-ems are showing useful knockdown activity beyond their residual roles, where glufosinate performs and where it doesn’t, and what OSST is making possible in fallow weed control.