Where the trees are large and in considerable numbers it will pay to 

 get a strong force-pump, mount it ou a barrel, and place the whole in a 

 wagon or cart to bo moved about at pleasure. In all cases, however, 

 it will be necessary to use the Vermorel nozzle, as it is the only nozzle 

 of value that will not clog; it can readily be attached to almost any 

 force-pump, and will be found to be a very effective piece of machinery. 



The total cost of a course of treatment such as is outlined above, 

 including labor in preparing and applying the remedies, will be for 

 nursery stock about $3 per 1,000 trees. For large bearing trees the 

 cost will run from 6 to 12 cents per tree. In case the Bordeaux mix- 

 ture shows on the fruit at the time of harvesting it can easily be re- 

 moved by washing in water. 



In addition to the foregoing it would be well to rake the old leaves 

 and fruit together in the fall and burn them, as in this way thousands 

 of the reproductive bodies will be destroyed. 



In regions where the scab alone prevails the treatment recommended 

 for apple scab might be tested. 



POWDERY MILDEW OF THE APPLE.* 



Powdery mildew is especially destructive to seedlings in the nursery, 

 attacking them soon after the leaves unfold and continuing throughout 

 the growing season, making it impossible to bud them with any degree 

 of success. 



When the leaves are about one-third grown begin the treatment by 

 spraying with the ammoniacal solution. In twelve days make a second 

 application of this solution and continue at similar intervals until six 

 or seven sprayings have been made. The applications are best made 

 with the knapsack form of sprayer provided with the Eddy chamber 

 nozzle. The spray of the Vermorel nozzle is too large for this work, 

 but the Eddy chamber can be easily attached to the lance of the former 

 at a cost of 75 cents. 



The total cost of such a treatment as outlined above need not exceed 

 10 cents per 1,000 trees. 



.what to do for peach yellows. 



By Erwin p. Smith. 



A series of experiments with fertilizers was begun in 1889, and will 

 be continued until complete and definite results are reached. These 

 experiments are in twelve orchards in different localities and on a 

 variety of soils, embracing a total of about 40 acres, with as many more 

 for comparison. The results last year were not of such a nature as to 

 warrant any affirmative conclusion or any general recommendation. 



* Podoaphcvra oxyacantha (DC), DBy. 



