steve_b_wales Posted June 3, 2018 Report Share Posted June 3, 2018 For the second year running, I have a problem with my H.Chestnut sapling leaves. Something is attacking the leaves and slowly killing them. It doesn't affect the Oak sapling leaves though. Any idea's what could be causing this to happen? Quote Link to comment Share on other sites More sharing options...
Konnie Posted June 3, 2018 Report Share Posted June 3, 2018 leaf mining moth, No idea just googled it and damage matches how it has kept inside some veins ? Quote Link to comment Share on other sites More sharing options...
ditchman Posted June 3, 2018 Report Share Posted June 3, 2018 there is some desease which has been going about for 10 years or so......it is causing the chesnuts to die off early in the summer and go all brown and crispy...they look as if they are goingto die but come back to life in the spring........... Quote Link to comment Share on other sites More sharing options...
Yellow Bear Posted June 3, 2018 Report Share Posted June 3, 2018 5 minutes ago, Konnie said: leaf mining moth, No idea just googled it and damage matches how it has kept inside some veins ? +1 has seen off half a 10m tree in our garden Quote Link to comment Share on other sites More sharing options...
GingerCat Posted June 3, 2018 Report Share Posted June 3, 2018 (edited) Mines the same and has been for the last 4 year's. Wasn't so bad last year. The year before and the hole tree was brown months early. I thought it would be curtains but it pulled through. As said above the culprit is a tiny moth that's not from these shores. Edited June 3, 2018 by GingerCat Quote Link to comment Share on other sites More sharing options...
ditchman Posted June 3, 2018 Report Share Posted June 3, 2018 (edited) have you notinced any gunky brown sap running out of a cut or soar in the bark ?..........more so on mature trees.. Edited June 3, 2018 by ditchman Quote Link to comment Share on other sites More sharing options...
steve_b_wales Posted June 3, 2018 Author Report Share Posted June 3, 2018 1 hour ago, ditchman said: there is some desease which has been going about for 10 years or so......it is causing the chesnuts to die off early in the summer and go all brown and crispy...they look as if they are goingto die but come back to life in the spring........... Yes, I thought mine last year were dead, but most of them came back to life. 1 hour ago, ditchman said: have you notinced any gunky brown sap running out of a cut or soar in the bark ?..........more so on mature trees.. Nothing like that, just 'burnt' leaves. Quote Link to comment Share on other sites More sharing options...
steve_b_wales Posted June 3, 2018 Author Report Share Posted June 3, 2018 They are indeed leaf miner bugs. Now to find a way to stop these little sod's. Quote Link to comment Share on other sites More sharing options...
Mice! Posted June 3, 2018 Report Share Posted June 3, 2018 (edited) you must be able to spray them now you know what they are? bit of useless info, we were in Astley park, chorley today and I saw some of the biggest chestnut trees I've seen. Edited June 3, 2018 by Mice! Quote Link to comment Share on other sites More sharing options...
steve_b_wales Posted June 3, 2018 Author Report Share Posted June 3, 2018 6 hours ago, Mice! said: you must be able to spray them now you know what they are? bit of useless info, we were in Astley park, chorley today and I saw some of the biggest chestnut trees I've seen. I've just read that you can spray the soil with NEEM. But it has to be done at the right time. I've got some leaves and put them in a ziplock bag, as directed. When little black flies are noticed, then is the time to apply. Quote Link to comment Share on other sites More sharing options...
sandspider Posted June 4, 2018 Report Share Posted June 4, 2018 My HC saplings have a similar thing. Think it's a canker or leaf blight of some sort. It seems to go away and they recover. Quote Link to comment Share on other sites More sharing options...
steve_b_wales Posted June 4, 2018 Author Report Share Posted June 4, 2018 1 hour ago, sandspider said: My HC saplings have a similar thing. Think it's a canker or leaf blight of some sort. It seems to go away and they recover. As mentioned, I think that it's leaf miner larvae causing the problems. They kill the leaf but the tree survives. You had some saplings off me a year or two ago I believe? Quote Link to comment Share on other sites More sharing options...
sandspider Posted June 4, 2018 Report Share Posted June 4, 2018 I thought it was leaf blight, but maybe something else. Or different things! I did indeed, thank you. Some now planted out, and a few kept back in pots to fill any spaces where other trees fail to survive. ? Quote Link to comment Share on other sites More sharing options...
Cant hit them all Posted June 4, 2018 Report Share Posted June 4, 2018 dand u insecticide works super a little go a long way Quote Link to comment Share on other sites More sharing options...
ClemFandango Posted June 4, 2018 Report Share Posted June 4, 2018 (edited) On 03/06/2018 at 16:49, ditchman said: have you notinced any gunky brown sap running out of a cut or soar in the bark ?..........more so on mature trees.. You are talking about bleeding canker I think. This is leaf miner. Oops, just noticed that loads or people Had posted after with the answer but they didn't show until after I had posted. Edited June 4, 2018 by ClemFandango oops. Quote Link to comment Share on other sites More sharing options...
Mice! Posted June 4, 2018 Report Share Posted June 4, 2018 have you looked if there is anything you can do to prevent it? The green gardener website is quite good. Quote Link to comment Share on other sites More sharing options...
GingerCat Posted June 4, 2018 Report Share Posted June 4, 2018 I've read online that you can get pheromone traps and should collect the fallen leaves and burn them. Tis what I will be doing this year. Quote Link to comment Share on other sites More sharing options...
steve_b_wales Posted June 4, 2018 Author Report Share Posted June 4, 2018 17 minutes ago, Mice! said: have you looked if there is anything you can do to prevent it? The green gardener website is quite good. To treat leaf miner bugs, they have to be caught at the correct time, and then the soil shout be treated with Neem. Quote Link to comment Share on other sites More sharing options...
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