THE DISEASES OF THE PEACH TREE. 13 



respecting diseases that injure pencil trees ; also, the cause and cure, whether of Yellows or 

 any other disease. An early reply from each person who receives this circular is requested, 

 as tiie commillee wisli to make a partial report of their doings at the June meeting of the 

 Bocit^ty, to be held at Kalamazoo. 

 Answers to be sent to J. C. Holmes, Detroit. 



J. C. HOLMES, 

 S. O. KNAPP. 

 H. G. WELLS, 



Committer. 



1. Has any disease attacked the peach trees in your vicinity ? If so. 



2. Do you think that disease is undnubtedly what is known as the Yellows ? 



3. Where, in your vicinity, and under what circumstances, did the disease first show 

 itself ? 



4. Judging from observation, do you think the disease contagious ? 



5. Have you any tlieory of your own with regard to the cause and cure of said disease ? 

 If you bave, what is it ? 



6. Have you tried any experiments for a cure that seem to promise success ; if you have, 

 what are tliey ? 



7. Have you tried any experiments for a cure that have failed of success ; if you have, 

 ■what are tlity ? 



8. Have you ever noticed whether peach trees, havincc serrated leaves, are more liable to 

 be injured by mildew, or ironi any otUer cause, than glandular-leaved trees ? 



9. Does the disease that is now ati'ecting the peach trees in your vicinity, if any, attack 

 both serrated and glandular-leaved varieties alike, or do you find that one resists the attack 

 more per>istently than the other ? 



10. Have diseased patches been noticed, by you, on the limbs of young peach trees before 

 they have l)lo?siimed ? 



It. ^^hat is the character of the soil at your place ? 



12. What is the age of the oldest peach orchards in your vicinity ? 



13. Has the seventy of the last winter had any injurious effect upon the peach trees in 

 your vicinity ? 



14. What was the greatest degree of cold indicated by tlie thermometer at your place 

 during the last winter, and at what date or dates ? 



KEASOXS FOR THE QUESTIONS. 



Several copies of this circular were sent out, and some replies have been 

 received. 



The committee have been requested to make a partial report of their pro- 

 ceedings at this meeting. A complete report cannot; at pres^^nt be made, but 

 the committee are willing to comply with the request and report progress. 



In making this report, perhaps it; would be well to say something in expla- 

 nation of the questions propounded in the circular. It; will be noticed that 

 the committee have not confined themselves strictly to the subject of the 

 Yellows, yet all the questions, and the remarks of the committee, have a bear- 

 ing, either directly or indirectly, upon that sutgect. 



QCJESTION NO. t. 



Has any disease attacked the peach trees in your vicinity ? 



It is the desire of the committee to learn in what part or parts of the State 

 any disease is at work among the peach trees, and where there is any, they ask 

 in No. 2. 



QUESTION NO. 2. 

 Do you think that disease is undoubtedly what is known as the Yellows ? 



This disease, called the Yellows because of the yellow appearance of the 

 wood and the foliage, was noticed, as we find, by reference to Browne's " Trees 

 of America," in the vicinity of Philadelphia, by Judge Peters, in 1790, or the 

 year following. From perfect verdure, he states, the leaves of his trees turned 



