TREATMENT OF NURSERY STOCK. 201 



The facts given aro sufficient to warrant sonic general considera- 

 tions and recommendations: 



(1) The trees from which buds are to be selected should be tht)roughly 

 sprayed with strong copper sprat's before the buds are remoxed. (2) 

 Where the last year's branches ai'e removed as a whole, the buds to be 

 cut out while ])udding is in progress in the nursery, the bud-bearing 

 shoots should be thoroughly dipped once or twice in a well-mad(^ Bor- 

 deaux mixture before being taken to the nursery.^ (3) After the nurs- 

 ery trees are budded they should be spraj'ed with Bordeaux mix- 

 ture, no portion of the tree or newly inserted bud lieing omitted. This 

 treatment should ])e repeated as often as found advisable, and the more 

 thorough the better, especially after the removal of the seedling top. 



The writer feels that these recommendations are for the best inter- 

 ests of the nurseryman, as well as the prospective purchaser. The 

 Bordeaux mixture will not only prevent the injurious action of the 

 disease, but will increase the diameter and height of the trees more 

 than sufficient to warrant the outlay, and will make them in every way 

 more valuable to the nurseryman and orchardist.' 



Messrs. Dressel Bros., proprietors of the Hart Nurseries, Hart, 

 Mich., sprayed their peach nursery in the spring of 181>4 with Bor- 

 deaux mixture. They reported good success from this work in the 

 control of curl. In the spring of 18i)5 they undertook an experiment 

 with the use of 5 pounds of copper sulphate, 10 pounds of lime, and 45 

 gallons of water, this experiment including 110,000 nursery peach trees 

 one year old and of several varieties. The spra3'ed trees were treated 

 twice, the first spraying being done April 1 and the second April 16. 

 On July 21 the foliage of sprayed and unsprayed trees was estimated, 

 and it was found that while none of the leaves had fallen from the 

 sprayed trees, 15 per cent had fallen from those unspraj^ed. There 

 were 100,000 sprayed trees and 10,000 unsprayed trees in this 

 experiment. 



Dressel Bros, state respecting this experiment that they considered 

 the work very successful, that their nursery stock showed good 

 results, and that the work would be continued. The spra3^ed stock 

 showed an increase in height. In 1897 they again treated their trees, 



^This is a matter calling for careful and detailed experiments. It should be com- 

 paratively easy'to dip such shoots one, two, three, or four times, and to have the 

 buds from such shoots inserted in seedling trees of separate nursery rows. By such 

 method a record could be kept of the number of trees showmg curl upon the push- 

 ing of the first leaves. In this manner much could be learned about the disease, and 

 a standard could be determined for the treatment of the shoots to be used as the 

 source of buds. 



^In relation to the added size and wei'ghtof sprayed over imsprayjed nursery trees, 

 the reader is referred to Bull. No. 7, Division of Vegetable Pathology, U. S. Dept. of 

 Agr., 1894. This bulletin relates to the effect of spraying with fungicides on the 

 growth of nursery stock. 



