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Kaipara and Waitemata Echo, 15 October 1913, Page 2

In reply to a question from a local correspondent tli9 Fields and Experimental Farms Division says:—lt. must bo remembered that a weod-destroyer that is fatal to a grass such as tall fescue will exercise the same effect on practically all other plants that may be in association with it. Arsenic and soda boiled together form the basis of the greater number of the proprietary preparations sold as weed-eradioati«rs. Il is, of course, poisonous, and decided dangerous to stock. The propoitions are - Water 1 gallon,"soda 2 lb., white arsenic 1 lb, Boil for twenty minutes and dilute with 24 gallons of water.