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SueM starts with ... Hi, Can I please get some help to identify the problem with this Avocado tree? The tree overall is quite withered, it has lost a lot of leaves. The branches seem to develop something like a fungus underneath the skin and eventually become black, withered, and dry out. It's in a well drained position, on a slope. There's plenty of moisture in the ground. We even had a lot of storms during the last week and the leaves still look like they are partially dried out. Another Avocado tree developed this problem a few years ago eventually died out. All the leaves fell off and just left stalks in the end.
| About the Author SueM Brisbane 12th December 2016 10:02am #UserID: 15161 Posts: 3 View All SueM's Edible Fruit Trees |
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| About the Author Helena Birkdale 26th December 2016 5:47pm #UserID: 6586 Posts: 5 View All Helena's Edible Fruit Trees |
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| About the Author Markmelb MOUNT WAVERLEY,3149,VIC 27th December 2016 10:50pm #UserID: 7785 Posts: 1192 View All Markmelb's Edible Fruit Trees |
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SueM says... Thanks for the suggestions guys. I contacted Yates and they said it's some kind of canker. They told us to remove the diseased branches and paint the cuts with liquid copper fungicide. A systemic fungicide does seem like a more effective option but I ended up removing most branches before I saw your reply. Can you explain what you mean by a soil drench? I took some photos of the diseased branches. They have a sort of rusty discolouration in the core. I also came across this website about root rot and the tress in their photos look similar. http://ucanr.edu/blogs/topics/index.cfm?start=12&tagname=root%20rot I will also apply the phosophorous product to the remaining leaves and see what happens.
| About the Author SueM ,,NT 29th December 2016 5:58pm #UserID: 15161 Posts: 3 View All SueM's Edible Fruit Trees |
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Original Post was last edited: 29th December 2016 6:07pm | ||||||||||
