. Circular. Agriculture -- Massachusetts. with a fertilizer drill, at the rate of 75 to 100 bushels per acre also is good. But by far the best results have been obtained from the use of formalin, which may be applied at the rate of one ounce to one gallon of water (1-128), or in even weaker solutions. Some onion growers in the Connecticut valley, where the crop is grown extensively and and with great success, occasionally use the formalin stronger than the amounts recommended, but this results in injury to the crop. i-ioo parts, which is sometimes used, is capable of killing almost anything, a
. Circular. Agriculture -- Massachusetts. with a fertilizer drill, at the rate of 75 to 100 bushels per acre also is good. But by far the best results have been obtained from the use of formalin, which may be applied at the rate of one ounce to one gallon of water (1-128), or in even weaker solutions. Some onion growers in the Connecticut valley, where the crop is grown extensively and and with great success, occasionally use the formalin stronger than the amounts recommended, but this results in injury to the crop. i-ioo parts, which is sometimes used, is capable of killing almost anything, and in our opinion is too strong to apply to Fig. 2. Formalin tank, block tin pipe and valve. (See Fi^. i.) By the aid of certain devices, formalin can be easily and cheaply applied when the seed is sown. Tests have shown that about 1200 feet of drill can be treated with one gallon of formalin solution. One of the first devices used for this purpose was made by the writer, and consists of a tank attachment. At the bottom is fastened a block tin tube about a quarter of an inch in diameter, to which is attached a valve to regulate the flow of formalin. This tube can be easily bent to discharge at any desired point and yet has sufficient stiffness to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station; Massachusetts Agricultural Experiment Station. Special circular. Amherst
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