Putnam Patriot

Professor Bolley of the North Dakota Agricultural college has been conducting extensive experiments in the use of a spray of iron sulphate for destroying mustard in grain fields. Such good results have been had with this new weed exterminator that one firm at Fargo, N. D., has put in a stock of a thousand tons of iron sulphate, while many farmers who have tried it buy the chemical in ton lots. Some of the larger farmers are spraying thousands of acres for mustard and, in addition to destroying the weeds, have secured an increase in wheat yield of as high as five bushels per acre. While this method of weed destruction was developed primarily to destroy the yellow mustard, it has been found very effective in killing many other varieties, including false flax, wormseed mustard, shepherd's purse, ball mustard, corn cockle, chickweed, dandelion, Canada thistle, bindweed, plantain, rough pigweed, ragweed and cocklebur.