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rust |
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rust 1. a disease of tropical fish in aquariums caused by the protozoa Oodinium limneticum and characterized by loss of luster of the skin surface. Causes heavy mortality. 2. a bacterial disease of the shell in turtles. See also shell rot. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In some areas of the northern Rocky Mountains of the United States and southern Canada, blister rust has killed from 25 to 50 percent or more of the whitebark pine, with blister rust infection rates as high as 100 percent. The original black currant farming ban occurred when the United States began importing European white pine seedlings, and white pine blister rust disease came with them. The fire combined with the onslaught of blister rust has been an ecological double whammy for biodiversity; the natural recruitment has been predominately lodgepole pine. |
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