"Simplicity is the ultimate sophistication" Leonardo Da Vinci

PhysicalWeeding a company that designs specialist physical weeding machinery as well as providing consultancy and advice on all aspects of physical, cultural and biological (non-chemical) weed management for commercial agriculture.

It is owned and run by Dr Charles 'Merf' Merfield, an international organic / sustainable horticulture scientist specialising in weed management and machinery and Tim Chamberlain a pioneering and multi-award winning organic farmer from New Zealand.

Our philosophy is to create exceptionally effective and reliable machines without unjustified complexity based on the premise that simple is superior. Our aim is be the one-stop shop for machinery and information on non-chemical weed mangement for commercial farmers and growers. This is increasingly important now that significant problems are emerging with herbicies, espicially herbicide resistence: PhysicalWeeding is plan B for a post-herbicide world.

Please note, all machines on this website are © copyright except the 4 Wheel Hoe and the Merf Clamp. You may not copy the designs, even with significant alterations, without permission, which can be obtained by contacting us.

Free stuff!

The 4 Wheel Hoe (pedestrian wheel (push) hoe) has been released under an Open Hardware License so that anyone can now download the plans for free and build their own machine

The Merf Clamp An individual axis locking, toolbar clamp, for weeding machinery and other uses, has also been released under an Open Hardware License