This section is from the book "The Gardener's Monthly And Horticulturist V20", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
I shall be glad if some of your readers would give their experience of this fungus, and, if possible, suggest a remedy. I have now for three years been sadly troubled with this parasite. Last year it caused great devastation, and did not confine itself to the leaves of the Pear tree, but attacked the wood and fruit. Last year I sent you samples of leaves, etc, and the answer you gave me was, ' It is the well-known fungus, Roestelia cancellata. Burn the leaves where ever you find them.' Now, I think if this fungus was so well-known as you state, more would be spoken or written about it; I can only boast of twenty-five years' experience in gardeningr most of which has been spent in places where fruit was grown to some extent, but never have I seen this fungus in anything like the same abundance as at present, and only on one or two occasions have I seen it at all. [Our correspondent lives in Germany, we in Old England. Hence, perhaps, his good luck in seeing so little of it. Eds.] Much is written about the Colorado beetle, but I really think there is less to fear from that than from this fungus. As to burning the leaves as suggested, it would with me be a great task, when I state that I have about 1000 trees in all shapes and forms.
Lastly, I would like to know whence the fungus comes, what time is best to look out for it; and how to destroy it when it comes. I find, in looking through the trees this morning, that it seems to be spreading very fast again. - E. B., Antholt-a.-R".