My Apple trees have got white fluffy stuff on them. Does anyone know what it is and how to get rid of it?
Very concerned gardener
Answers:
That is probably powdery mildew:
Powdery mildew of apple is caused by a fungus that overwinters in the dormant buds. Leaves emerging from infected buds are covered by a white fungus growth. Secondary spread of the disease to other leaves, buds, and even fruits occurs from the time the buds open until the terminal buds form in late June.
Non chemical management: Prune out infected areas as soon as seen. Collect and burn or otherwise dispose of all infected debris and prunings.
Chemical management: Apply a fungicide, available at Home Depot or your local hardware/home and garden center. These are:
* sulfur,
* neem oil (Rose Defense, Shield-All, Triact),
* triforine (Ortho Funginex), ornamental use only, or
* potassium bicarbonate (Kaligreen, First Step)
The following measures will reduce susceptibility to the disease:
* Keep plants well watered, so they are not dry at the roots
* Mulch to preserve soil moisture.
* Improve air-flow around plants to reduce humidity. For woody plants such as roses this can be achieved by pruning to establish an open branch structure. Avoid overcrowding smaller plants. Thin vegetable crops to recommended spacing.
* Avoid high nitrogen fertilisers, as these encourage soft sappy growth that is more easily colonised by fungi.
* Ensure plants are in their ideal position. For example, a sun-lover will struggle in shade and be at greater risk of infection.
Best luck.
awwwwwww sounds beautiful and festive ! leave it and pretend its christmas .
Hope thats helpful ! x
It is possible it is Woolly Apple Aphid. Check out the link for info.
apple blossom
the web site below will help you identfy them properly but it sounds to me as thoughyou have Wooly Aphid use of a grease band helps to stop these wingless pests that overwinter in the ground
a systemic insecticide will be a help although you will have to use regularly
best of luck
Thank you for psoting this question as I have this on my ballerina apple tree and as it was given as a memorial for my daughter who died I am desperate to keep it alive.so thank you!
Can anyone in the UK remommend a reliable dishwasher?
Does Cannabis produce flowers more quickly in a tropical climate?
How can I keep hedgehogs out of my garden? They get in by digging under my fence.?
What can I use to clean my stainless steel cooker? - every product I have used so far leaves streaks.?
Is there a way to restore/hide a stain on a kitchen worksurface so that it goes back to white?
What is an economical way to achieve a decent wooden floor? Sand existing boards or replace with new/laminate?
Woodworm problem?
Removing and putting in sealant around the bath.help pls.?
Answers:
That is probably powdery mildew:
Powdery mildew of apple is caused by a fungus that overwinters in the dormant buds. Leaves emerging from infected buds are covered by a white fungus growth. Secondary spread of the disease to other leaves, buds, and even fruits occurs from the time the buds open until the terminal buds form in late June.
Non chemical management: Prune out infected areas as soon as seen. Collect and burn or otherwise dispose of all infected debris and prunings.
Chemical management: Apply a fungicide, available at Home Depot or your local hardware/home and garden center. These are:
* sulfur,
* neem oil (Rose Defense, Shield-All, Triact),
* triforine (Ortho Funginex), ornamental use only, or
* potassium bicarbonate (Kaligreen, First Step)
The following measures will reduce susceptibility to the disease:
* Keep plants well watered, so they are not dry at the roots
* Mulch to preserve soil moisture.
* Improve air-flow around plants to reduce humidity. For woody plants such as roses this can be achieved by pruning to establish an open branch structure. Avoid overcrowding smaller plants. Thin vegetable crops to recommended spacing.
* Avoid high nitrogen fertilisers, as these encourage soft sappy growth that is more easily colonised by fungi.
* Ensure plants are in their ideal position. For example, a sun-lover will struggle in shade and be at greater risk of infection.
Best luck.
awwwwwww sounds beautiful and festive ! leave it and pretend its christmas .
Hope thats helpful ! x
It is possible it is Woolly Apple Aphid. Check out the link for info.
apple blossom
the web site below will help you identfy them properly but it sounds to me as thoughyou have Wooly Aphid use of a grease band helps to stop these wingless pests that overwinter in the ground
a systemic insecticide will be a help although you will have to use regularly
best of luck
Thank you for psoting this question as I have this on my ballerina apple tree and as it was given as a memorial for my daughter who died I am desperate to keep it alive.so thank you!
The answers post by the user, for information only, UKQnA.com does not guarantee the right.