SUMMER MEETING AT CHILLICOTHB. 49 



Mr. Evans has examined the fruit and found the first brood, but 

 after a while could find no trace of second brood. It is simply impos- 

 sible to tell from the first brood what the second will be. We must 

 watch the effect of this spraying closely, for we have much to learn. 



Mr. Murray — As there will not be many apples this year, we may 

 be sure the moth will not be bad next year. He is in favor of a close 

 watch being kei)t, and spraying done systematically. Dr. Goslin, of 

 his place, sprajed thoroughly and he found a difference of over 75% 

 of wormy , apples. We are just creeping in our knowedge, but will 

 continue to gain each year. Our Experiment Station should give us 

 some facts, but we have to look to other states for results. We have 

 some members who are carrying on more systematic and thorough 

 experiments in this direction than the $'15,000 yearly given to our Ex- 

 periment Station. 



Prof. "Duffey — In Michigan I hunted for wormy apples where they 

 were sprayed thoroughly and found none, while where they were not 

 sprayed, you could hardly find a sound one. 



TREATMENT OF NURSERY STOCK FOR LEAF-BLIGHT AND POWDERY 



MILDEW. 



INTRODUCTORY. 



Nurserymen need not be told of the vast amount of injury occasioned every 

 year by leaf-blight and powdery mildew. For the past two years a series of experi- 

 ments has been carried on by this Department with a view of obtaining some 

 light on the treatment of these maladies. The experiments have proved conclu- 

 sively that powdery mildew of the apple, leaf-blight of the pear, plum, cherry 

 and quince can readily be controlled at comparatively little expense. 



What is stated in this circular is based upon the work referred to above. Fu- 

 ture experiments will no doubt necessitate changes in these statements, but it ia 

 hoped that the information here given will be of value. In concluding these intro- 

 ductory remarks, it may not be out of place to say that no possible injury to stock 

 can follow the use of the remedies, providing, of course, that the directions are 

 carefully followed. No less than ten million young trees of apple, pear, plum, 

 cherry and quince will be treated the coming season in accordance with the direc- 

 tions herein set forth. This in itself is sufficient evidence of the value of the treat- 

 ments, which are briefly described in this circular. 



FUNGICIDES USED IN THE WORK. 



Bordeaux mixture and the ammoniacal solution are the only fungicides now 

 used in this work. In the nursery our usual plan of making these fungicides is as 

 follows : 



Bordeaux mixture. — Dissolve 12 pounds of powdered sulphate of copper or blue- 

 stone in 15 or 20 gallons of water, using a half barrel or tub for the purpose. In 

 another similar vessel make a milk of lime by stirring up S pounds of either 



