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Canker sore

(Science: gastroenterology) a type of benign mouth ulcer often caused by injury to the mucosal lining of the oral cavity, viral infection or vitamin deficiency.

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Camellia japonica fungus

Thank you very much plasmodesmata! That's a big help. The camellias had to go, couldn't get rid of it and it was spreading. Now I see those same cankers on an elderly azalea. Hope I can save it, there's a whole row of those poor old things...

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by Wallyanna
Wed May 09, 2012 9:19 pm
Forum: Botany Discussion
Topic: Camellia japonica fungus
Replies: 2
Views: 1638

What causes the brown spots on pears?

... Simply click on the pest for more information and controls. Small reddish-brown spots on bark develop into cracked, sunken and shriveled cankers (5 - 10 cm or longer). Eventually thye canker falls out leaving fiberous material. Anthracnose Canker (fungus) In March, prune out and burn ...

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by CoolJay221
Wed Feb 15, 2006 4:13 pm
Forum: Botany Discussion
Topic: What causes the brown spots on pears?
Replies: 12
Views: 12653

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