This list is recommended as a guide only
It’s not as easy as it may seem to specify gels for weeds for a number of reasons and the variety of environments and circumstances people find the weeds and themselves in.
For that reason we have steered clear of producing a definitive list, not withstanding that there are hundreds of weeds that could be mentioned. However, this list should be a guide to our recommendations. The list is by no means exhaustive.
nz/weed-information/weed-list/ Weedbusters have a very good listing of weeds and against each weed a herbicide recommendation and this should help to identify other solutions.
Also Forest and Bird make recommendations on their page https://www.forestandbird.org.nz/sites/default/files/2018-05/Weed%20Control%20Guide.pdf
Please click on the PDF file below. Please note that the recommendation for Wooly Nightshade or Tobacco Weed is now Picloram Gel not Glyphosate.