brown blotch

brown blotch

[′brau̇n ¦bläch]
(plant pathology)
A bacterial disease of mushrooms caused by Pseudomonas tolaasi and characterized by brown blotchy discolorations.
A fungus disease of the pear characterized by brown blotches on the fruit.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Far, far down I saw a small brown blotch near the bottom of the canon.
Color pattern of preserved specimens: Body with a longitudinal median dark brown stripe as wide as lateral line scale series; it starts inconspicuously from snout tip through eyes, interrupted by the light opercular membrane and running inconspicuously on lateral line scales to median region of trunk; at this point meeting an inconspicuous elongated light brown blotch. From this point to caudal peduncle it is a conspicuous dark brown elongated stripe, along lateral line and meeting a small round dark brown blotch on caudal peduncle; some individuals with the anterior portion of this stripe absent from snout to vertical through dorsal-fin origin.
Mushrooms washed by this process were free of adhering soil, less subject to brown blotch than conventionally washed mushrooms, and at least as resistant to enzymatic browning as unwashed mushrooms during storage at 4[degrees]C.
& Cav.], web blight (caused by Rhizoctonia solani Kuhn), brown blotch (caused by Colletotrichum capsici Syd.), Cercospora leaf spot (caused by Cerscospora cruenta Sacc.
Keep on the lookout for blossom-end rot a soft, dark brown blotch on the bottom of a tomato.
rosea Hort.) with a large, solid, reddish brown blotch on the lip comparable to that of O.
It has combined resistance to several major diseases, including Cowpea aphid-borne mosaic virus, brown blotch [caused by Collectotricum capsici (syd.) E.J.
Last is the leaf-mining moth, whose caterpillars cause brown blotch mines on horse chestnuts as well as several acers or maples including sycamores and Norway maples.
There are several varieties, including Lilac Wonder (pale, purple flowers with a brown blotch at the base of each) Purple King (deep purple with a striped and spotted white and brown centre) and a white-flowered one, White Splendour.
It can be susceptible to the lilac leaf mining moth - you will notice brown blotches on the leaf or the leaf will roll up.