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#1
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sickly plum tree
I have a 3 year old plum tree who has problems. The tops of the leaves
are very sticky and underneath there are what look like aphids, I suppose that I have answered my own question but if they are aphids how do I treat a tree or has the damage been done, some leaves are curling. kate |
#2
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sickly plum tree
"Kate Morgan" wrote in message ... I have a 3 year old plum tree who has problems. The tops of the leaves are very sticky and underneath there are what look like aphids, I suppose that I have answered my own question but if they are aphids how do I treat a tree or has the damage been done, some leaves are curling. kate I'm afraid that this seems to happen most years especially in this type of hot weather. Whilst it is a pain & unsightly, it doesnt seem to have much effect on the tree & it's fruit production. My victoria has been planted 15 years now & has been very productive on 12 of them. SH |
#3
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sickly plum tree
I have a 3 year old plum tree who has problems. The tops of the leaves
are very sticky and underneath there are what look like aphids, I suppose that I have answered my own question but if they are aphids how do I treat a tree or has the damage been done, some leaves are curling. kate I'm afraid that this seems to happen most years especially in this type of hot weather. Whilst it is a pain & unsightly, it doesnt seem to have much effect on the tree & it's fruit production. My victoria has been planted 15 years now & has been very productive on 12 of them. SH Good to know that this is a comman problem, I was thinking about pruning some of the branches where there is no fruit - not that there is much anyway - will the bugs spread, does anyone think it would be harmful, must buy a book on fruit trees :-) kate |
#4
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sounds like aphid leaf curl which my large plum has, unfortunately its said to be almost impossible to eridicate, but u can control it. damage for this season has been done and leaves will curl and not look too good. yes you can spray it if you want, but it won't affect the leaf curl process, but will control the aphids.
the most important thing to do is spray the tree at end of winter JUST before bud break. i made the mistake of spraying this year end of jan, which worked in 05, but due to the long cold winter i sprayed too early and the leaf curl has returned with avengance. i noticed yesterday after the heavy rain made the branches droop lower that some leaves were just covered. |
#5
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sickly plum tree
snip
the most important thing to do is spray the tree at end of winter JUST before bud break. i made the mistake of spraying this year end of jan, which worked in 05, but due to the long cold winter i sprayed too early and the leaf curl has returned with avengance. i noticed yesterday after the heavy rain made the branches droop lower that some leaves were just covered. Many thanks for that information, I will do as you suggest :-) kate |
#6
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sickly plum tree
http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7404.html (treatement
scroll down) pretty comprehensive. I've been having aphid infestation on banana but it's cleared up. The wiki has nice pics and a life cycle http://en.wikipedia.org/wiki/Aphid |
#7
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sickly plum tree
Also:
"A 2% soap solution is the quickest & best aphid control. This would be about two ounces of dishwashing detergent per gallon of water, in a sprayer. There is no extra "oomph" from paying extra for special insecticidal soap where aphids are concerned, dishwishing detergent is fine. Drench the tree especially the undersides of leaves. Once is usually enough but at most a second time two weeks later. " -paghat the ratgirl I read somewhere that ladybugs (which are available in shops in the UK) and some other insects eat them and that ants rear aphids. Might deter them in the long term. |
#8
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sickly plum tree
"Vivek.M" wrote in message ... Also: "A 2% soap solution is the quickest & best aphid control. This would be about two ounces of dishwashing detergent per gallon of water, in a sprayer. There is no extra "oomph" from paying extra for special insecticidal soap where aphids are concerned, dishwishing detergent is fine. Drench the tree especially the undersides of leaves. Once is usually enough but at most a second time two weeks later. " -paghat the ratgirl I read somewhere that ladybugs (which are available in shops in the UK) and some other insects eat them and that ants rear aphids. Might deter them in the long term. Where even small trees are concerned, the idea of spraying is kill overwintering eggs, which are present on the bark, not adult aphids. With no foliage on the tree this is easier to achieve, but needs to be done thoroughly. Tar oil winter wash - a weak creosote solution used to be the standard remedy but is no longer available. A bit of research might suggest possible alternatives for those who didn't lay in a stock in time. michael adams .... |
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