. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. of the symptoms of the disease and better inspection has since brought both dis- eases under control. Symptoms of Peach Yellows. On a diseased tree some of the fruit will usually ripen from a few days to two or three weeks prematurely. Such fruit is more highly coloured tliau normal, is blotched outside with reJ, streaked inside with the same colour and has the flesh around the pit abnormally red. Sometimes only
. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. of the symptoms of the disease and better inspection has since brought both dis- eases under control. Symptoms of Peach Yellows. On a diseased tree some of the fruit will usually ripen from a few days to two or three weeks prematurely. Such fruit is more highly coloured tliau normal, is blotched outside with reJ, streaked inside with the same colour and has the flesh around the pit abnormally red. Sometimes only one branch or even one twig will show these symptoms and all the rest of the tree bear quite normal fruit. The first year the diseased fruit is either normal in size or a httle larger, but the next year it is smaller than normal. The foliage on at least some of the branches is nearly always a sickly yellow colour and is often clustered and curled as described below for Little Peach. Sometime* we find arising from the mam branches little upright tufts of much-branched twigs with narrow yellow-. Branch of tree affected with Little Peach Just beginning to show the clustering and curling of the leaves near the base as In- dicated by the arrows. (Original.) ish leaves. This symptom, however, is not common except on trees in which the disease is in an advanced stage. Symptoms of Little Peach. The fruit on a typical diseased tree or part of a tree ripens ater than usual, is smaller than normal, but has no peculiar colour markin-s. In many cases, however, wo find trees on which the fruit ripeno nt the usual time and is about normal in size, and yet the foliage shows clearly that the trees are diseased. The symptoms on the foliage are the curling and clustering of the caves, esf^rmllyon the inner parts of the tree, and the sickly yellowish or some- times reddish-yellow colour they assume. On some varieties the leaves cluster much more than on others. Curling clustering of leaves a
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