. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. 308 THE AGRICULTURAL NEWS. - September 30, FRUITS AND FRUIT TREES. CACAO-SPRAYING EXPERIMENTS IN GRENADA. The fdUuwing particulars of the scheme fur cacao- ex|jurimeiits in Grenada, which has received the approval of the Imperial Commissioner of Agri- culture and the Agricultural Board, is tiken from a letter to the Grenada Agricultural and Commercial Society by the Superintendent of Agricul- ture, Mr. G. G. Auchinleck, ; this appears in the Minutes of the Proceedings of that Society
. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. 308 THE AGRICULTURAL NEWS. - September 30, FRUITS AND FRUIT TREES. CACAO-SPRAYING EXPERIMENTS IN GRENADA. The fdUuwing particulars of the scheme fur cacao- ex|jurimeiits in Grenada, which has received the approval of the Imperial Commissioner of Agri- culture and the Agricultural Board, is tiken from a letter to the Grenada Agricultural and Commercial Society by the Superintendent of Agricul- ture, Mr. G. G. Auchinleck, ; this appears in the Minutes of the Proceedings of that Society, 1911, p. 75. These experiments are laid down upon two lines : — (1) Spraying with copper .sulphate solution to destroy mosses growing on cacao trees. (2) Spraying with Bordeaux mixture as a preventative and cure for pod and stem diseases. Both lines of work Lave been tried before, with satisfac- tory results. EXTENT or EXPERIMENTS. Six Stations to be chosen in the island, each station to contain OOO trees, to be treated as follows :— ) Plot A. .300 trees to be left unsprayed: yield to be weighed for one year, diseased pods being weighed separately. Plot B. 300 trees adjacent to Plot A: tilled and manured similarly to Plot A: to be sprayed with Bordeaux mixture or copper sulphate: yield to be weighed for one year, diseased pods being weighed separately. oiuECTS OF EXPERIMENTS. (1) To determine whether increase of yield'will justify the of spraying twice in one year with mixture. (2) To ascertain whether there is an appreciable lessening of fungoid on pods and trees following on such spraying. (.'!) To note whether epiphytic growtlis such as mosses and pines are destroyed effectively by Bordeaux mixture. ESTIMATED,COST. Total of £10 authorized by Agricul- tural Board, liorer, as a result of bis experiments, finds that ^-gallon i)er tree is effective. This gives the following figures per station: 300 trees need 150 gallons at GOc. per gallon —
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