Horticulture, a text book for high schools and normals, including plant propagation; . e. (Nebraska Station.) As the buds begin to swell, and before they show any color ofgreen or white bloom, it is usually necessary to spray with poisonto fight the bud worm. This may be added to a weaker solutionof lime-sulfur to continue the fight against fungous diseasesand San Jose scale. This spraying as the buds burst sometimesconsists of arsenate of lead combined with mixture. If atthis time the buds are attacked by plant lice, the lime-sulfur willhelp to control this pest also. THE SPRAYING C
Horticulture, a text book for high schools and normals, including plant propagation; . e. (Nebraska Station.) As the buds begin to swell, and before they show any color ofgreen or white bloom, it is usually necessary to spray with poisonto fight the bud worm. This may be added to a weaker solutionof lime-sulfur to continue the fight against fungous diseasesand San Jose scale. This spraying as the buds burst sometimesconsists of arsenate of lead combined with mixture. If atthis time the buds are attacked by plant lice, the lime-sulfur willhelp to control this pest also. THE SPRAYING CAMPAIGN 335 The next spraying should follow immediately after the petalsfall. This is three pounds paste arsenate of lead in 50 gallonssummer lime-sulfur. The poison is for the codling moth whichenters through the calyx cup of the fruit. The lime-sulfui- is tocombat scab, rot and rust diseases. These same spray materials should be applied again in aboutten days or two weeks. In special cases a third spraying with thismaterial ten days or two weeks after the last may be made. Spray-. ?^ •^ Fig. 239.—Large shears, e, will hasten the pruning work; hand shears, /, are necessaryfor small trees and twigs. The hole pruner, n, aids in the high tops. The heavy pruningknife with hooked blade is used on small limbs and for smoothing the saw work. (NebraskaStation.) ing later than this will not be necessary except where bitter rotis likely to attack the crop. In that case a summer campaign maybe necessary, spraying every two or three weeks according to thefrequency of rainfall. This would be practiced only in specialcases, and should be considered somewhat experimental. Thematerial recommended is Bordeaux mixture made with fourpounds of copper sulfate to six pounds fresh ^unslaked lime in 50gallons of water. 336 WORK BY SEASONS Spraying Campaign for Stone Fruits.—This campaign is very-similar to that described for the apple orchard. In general thesprajdng is the same for all the ston
Size: 1655px × 1509px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectgardeni, bookyear1922
