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Sat, Jun 1, 13 at 18:35
| Checking the orchard today after a while I found some of the apple trees with rust leafs. I planted the orchard 3 years ago but I didn’t have seen so many rusted leafs before. Now the questions which I have: is this cedar apple rust or frost bites as we had some frost nights couple days ago? What treatment I can do? I did the Bordeaux mixture spray before blooming. Just want to mention the cedar forest line is at 500ft away from the orchard. I attached some pictures for reference. Thanks. |
Follow-Up Postings:
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| The brown tips and edges aren't cedar apple rust. CAR shows up as light colored spots on the leaves. As it progresses the center of the spot rusts. See pictures below. |
Here is a link that might be useful: CAR pictures
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| I have an apple tree that also has a similar condition that is in your photograph. Due to all of the rain we have had, I believe it is a fungus. Just don't know which one. I hope its not canker. I sprayed Immunox, Triaz. and Captan today. I'm watching the tree closely. Cannot wait to hear an answer here! Mrs. G |
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| Research pictures for Verticillum Wilt. Mrs. G |
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| I googled for V Wilt and found a nice article with tons of info. They state that apple trees are either immune or resistant to VWilt. Of course doesn't mean it doesn't happen, but I feel it to be less likely now that I've read that info. I'm struggling with a GSmith here myself so am always reading anything I can find about them. My issue last year turned out to be wooly apple aphids which I had never heard of. During dormant prune I pruned heavily, removing all growth tips and burned them. Of course no chance of fruit this year but the tree bounced back with lots of new growth and shows no sigh of reinfection yet, Pam in cinti |
Here is a link that might be useful: V Wilt info
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| "For home gardeners in Rhode Island, considering verticillium wilt as a potential problem on apple trees is a logical concern when trees appear unhealthy. Though apple trees are considered resistant to this fungal disease, resistant does not mean immune. Verticillium wilt often occurs during bloom when temperatures shift from cool to hot. Since Rhode Island's climate goes through rapid changes, home gardeners should consider whether verticillium wilt is causing a problem or if another more common apple disease is the culprit before moving forward with treatment." Read more: How to Diagnose Verticillium Wilt in an Apple Tree in Rhode Island : eHow http://www.ehow.com/how_7898463_diagnose-apple-tree-rhode-island.html#ixzz2V5g4crFb Maybe it occurs just where I live. Mrs. G |
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| Thank you for that link. I'm sure it will really help me as I am just last year starting to branch out planting the most disease resistant apples I can find, Except for the GSmith which is just my fave so I had to try, Love the pics I've seen of your orchard. Pam in cinti |
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| Pam, aren't you kind, once the orchard is weeded, mulched and the veg. gardens planted for summer will post more pics. Mrs. G The rose garden in the center of the orchard is about to burst. |
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| I would say it's apple scab..need closer pictures of the leave for sure. |
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