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| all my gums in the yard are getting attacked by these dark red blotches on the leaves, i can't see any insects, just the blotches, which eventually turns the whole leaf brown, it then falls off. i have a 3 year old gum, which is almost dead, and now it has just showed up on another 2 year old gum, anyone now what it is and how to control? |
Follow-Up Postings:
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- Posted by ladyecheveria (My Page) on Sat, Jun 24, 06 at 4:29
| Hi Emily, I have a Eucalypt Leucoxolon which is about 4 meters tall. It has also had small brown spots on the leaves, which then die and fall off leaving the lower half of the trees branches leafless. On two sections the bark has cracked also and I am wondering if this has anything to do with the spots and die-back. The top half of the tree appears normal and is flowering though not many. My first thought was 'rust', or some type of fungus, though from looking at some sights that indicated that E. rust is not yet in this country, and the pics show the brown spots with a yellow halo - mine did not have the yellow halo, so as to whats affecting mine remains to be identified. Whilst looking up info for you, I found the following sites to be helpful, so hope they may be of some help to you. Australian Plants online Association of Societies for Growing Australian Plants (ASGAP) Gardenweb : Australian Native Plants Electronic Mailbox There is also the following article which I found on the above website. It's almost impossible to diagnose these sorts of things from a distance. The foliage discolouration could result from a range of causes, including fungal (rust) diseases, soil nutrients or lack of water. It could even just be a response to cold weather. You really need to take a sample to a reputable nursery in your area or, better still, a local NSW Agriculture office if there is one near you. Good Luck! |
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- Posted by emily_aust nsw,aust (rbieman@bigpond.net.au) on Sat, Jun 24, 06 at 22:39
yeah, the bad one of mine is too an E. leucoxolon, and there seems to be no identical match to any pest or disease in the pest and disease book. i will have to remove the near dead tree and i will start spraying a fungicide on the others, hopefully that will control it, this is what it looks like:    |
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- Posted by emily_aust nsw,aust (rbieman@bigpond.net.au) on Sat, Jun 24, 06 at 23:34
yeah, the bad one of mine is too an E. leucoxolon, and there seems to be no identical match to any pest or disease in the pest and disease book. i will have to remove the near dead tree and i will start spraying a fungicide on the others, hopefully that will control it, this is what it looks like:  Eucalypt leucoxylon  Eucalyptus 'summer red'  unknown Eucalypt, if any one knows id...  Eucalyptus ficifolia |
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- Posted by emily_aust nsw,aust (rbieman@bigpond.net.au) on Sat, Jun 24, 06 at 23:38
| sorry, first picture post, not meant to be there |
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