16 STATE POMOLOGICAL SOCIETY. 



QUESTION NO. 6. 



Have yon tried any experiments for a cure tliat seem to promise success ; if you bave, what 



are they ? 



This question is designed, as all will readily perceive, to obtain from cultiva- 

 tors a detailed account of experiments they have tried that seem to promise 

 success in the cure of the disease, that all may profit thereby. Experiments 

 have been tried, that for a time seemed to improve the condition of the tree, 

 but ultimately failed to restore the tree to health. 



QUESTION NO. 7. 



Have you tried any experiments for a cure tbat have failed of success; if you bave what 



are they ? 



Your committee think it is of considerable importance that experiments in 

 Agriculture and Horticulture, that have failed to accomplish the object 

 desired, should be recorded and made known, that others may not be at the 

 trouble and expense of making the same experiments in the same way. 



QUESTION NO. 8. 



Have you ever noticed whether peach trees, having serrated leaves, are more liable to be 

 injured by mildew, or from any other cause, than glandular-leaved'trees ? 



It is presumed that all who cultivate the peach to any great extent under- 

 stand the difference between serrated and glandular-leaves, but there may be 

 some in this audience who are not familiar with the terms or the leaves, there- 

 fore we bring here specimens of peach tree leaves that are serrated, toothed on 

 the edge, like a saw, and without glands. Here are some leaves having small 

 round or globose glands and nearly smooth on the edge, not serrated ; another 

 term being given to the unevenness that appears here. Here are some leaves 

 that have irregular, renlform, or kidney-shaped glands; these leaves are not 

 serrated or. toothed like the first specimen. It has been noticed that peach 

 trees having serrated leaves, without glands, are usually of slower growth and 

 more subject to mildew than glandular-leaved varieties. I once had a peach, 

 tree called the Emperor of Russia; the leaves were so deeply cut that it had a 

 ragged appearance. It was of exceedingly slow growth, and mildewed so badly 

 that, after three or four years labor in trying to make it grow, I gav« it up as 

 a bad job and destroyed it. 



In Wood's Class Book of Botany, glands are thus described: "Glands are 

 minute bodies of cellular tissue, situated on various parts of the plant, generally 

 serving to elaborate and discharge its peculiar secretions, which are oily, resin- 

 ous, saccharine, acrid, etc." 



Gray says: '• Glands. This name is applied to any secreting apparatus, like 

 glandular hairs, only not raised on a stalk; and also to other superficial 

 appendages of diverse kinds." 



, What part, if any, the glands upon the leaves play in preserving the health 

 and Vigor of the peach tree, we do not know. It is a question that ciiltivators 

 would do well to notice. If they find that glandular-leaved trees are more 

 hardy and healthy than serrated-leaved trees, perhaps they would do well to 

 discard the tender as fast as they can find more hardy substitutes for them. 



We have read an article written as long ago as 1831, by a practical gardener 

 in England, upon diseases of fruit trees. In speaking of what he calls blight 

 in peach trees, he says: "Blight. Under this denomination are frequently 

 confounded two varieties of disease materially different in their appearance, 

 and which I shall distinguish by the appellation of Mister and curl. The 

 former is generally confined to such peach trees as have glandular leaves, 



