. Florists' review [microform]. Floriculture. cow manure will not infrequently cause a loss of foliage and even scorching. This would show more quickly on Kil- larney than on Maryland and the tougher foliaged Eichmond. It is likely that bety^een your several remedies, sulphuring the pipes, spraying with Bordeaux mixture, etc., the foliage has been injured. This damage would most probably be caused by the Bordeaux mixture. This is a splendid spray for fungoid diseases, though I have doubts as to its efficiency against mildew. Much would depend on how strong you used the Bordeaux. If, for instan
. Florists' review [microform]. Floriculture. cow manure will not infrequently cause a loss of foliage and even scorching. This would show more quickly on Kil- larney than on Maryland and the tougher foliaged Eichmond. It is likely that bety^een your several remedies, sulphuring the pipes, spraying with Bordeaux mixture, etc., the foliage has been injured. This damage would most probably be caused by the Bordeaux mixture. This is a splendid spray for fungoid diseases, though I have doubts as to its efficiency against mildew. Much would depend on how strong you used the Bordeaux. If, for instance, it was of a strength equal to what is generally used in spraying apples and other fruit trees, it would be reasonably sure to destroy much of the foliage. Peach trees, if sprayed at the same strength as apple, will lose a lot of foliage; this would not occur at once, but gradually, and after a lapse of two or three weeks. My personal opinion would be that the sulpjiur on the pipes. added to the Bordeaux, caused the loss of leaves and caused the plants to die. Your soil was evidently all right and so were the moderate applications of stimulants. Eosa. BOSE FOLIAGE DISEASED. I am sending in a box of some rose leaves that are infected. It is some- thing new around here. We would like to know what it is and how to treat it. F. C. The leaves, when received, were much dried up. It is hard to give an opinion as to what has caused the foliage to go as yours has, and not know anything of your varieties, cul- tural conditions, etc. The most prob- able cause would seem to be an excess of manure, either in the form of top dressing or as liquid. Fresh cow ma- nure highly charged, as it always is, with ammonia would cause this scorch- ing unless some air was kept on the top ventilators until the odor subsided, but of course this would not be done with such weather as we had early in Feb- ruary. Of course this may not be the cause of your trouble, but I have seen similar damage done on a
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