Wisconsin State Horticultural Society / Annual report of the Wisconsin State Horticultural Society for the year 1910
Volume XL, Part II (1910)
Milward, J. G.
Spraying the farm orchard, pp. 36-42 PDF (1.8 MB)
40 WISCONSIN STATE HORTICULTURAL SOCIETY. 75 per cent of the crop infested with worms. Add to this in- jury that from scab and rot also, and any informed horticul- turist will agree that the loss is sufficient to warrant the adop- tion of economical methods of control. As opposed to the conditions just mentioned, the writer has seen orehards which have yielded unsound fruit, turned by X system of spraying into profitable orchards, when as high as 90 per cent of the crop was sound. It should be remembered that the evidence of benefit is not alone indicated by the superiority of the fruit, but also by the increased health and vigor of the trees. Before closing, it is advisable to enumerate several problems- inclusive under this discussion, but which have been purposely omitted because they have been thoroughly handled in stand- ard bulletins and reports. These include a list of formulae for spray mixtures; detailed discussion upon spray machinery; special reference to scale insects. Upon these points, and in fact the whole question, horticulturists are urged to avail themselves of the reports and bulletins of the Horticultural Society and the Agricultural Experiment Station. Attention is also directed to the fact that orchard spraying is in progress in the State under the system of the University Extension, and it is especially intended that Wisconsin horticulturists should keep in touch with this work. There is room for the exten- sion of economical orchard spraying among the horticulturists of Wisconsin. Mr. Tiplady: Are these new tree bands used to any extent in the orchards, to keep insects from crawling up the trees? Mr. Milward: I have never seen them used. Prof. Moore: The tree bands are good for but very few in- sects, but there is no object in using the bands because you have to spray for codling moth and get the canker worm anyway. How much lime do you use? Mr. Milward: fiWe use eight pounds of blue vitriol and ten pounds of lime to 100 gallons of water. Mr. Smith: You said something about the kind of nozzle one should use with a high or low pressure. Mr. Milward: Yes, you can get various degrees of spray, fine or coarse. I said if you use the coarse nozzle it sprinkles it on the trees instead of spraying. You cannot use low pressure and
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