Lack of fungal diseases on trees and top fruit

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oldherbaceous
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Re: Lack of fungal diseases on trees and top fruit

Postby oldherbaceous » Sun Apr 26, 2020 12:35 pm

I'm pretty sure the white furry stuff is wooly aphid...give it a rub with you hand and see if it goes a sticky goo, where you have sqaushed the aphids!
Not sure about the brown canker....
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sally wright
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Re: Lack of fungal diseases on trees and top fruit

Postby sally wright » Sun Apr 26, 2020 1:31 pm

Dear Ian,
the brown knobbly bits you are seeing on your trees is Apple Crown Gall. There is no treatment but it rarely proves too damaging to the tree - you should still get a crop. That said it IS infectious and so you should prune the trees with galls after you have pruned any healthy trees you have and then disinfect your pruning tools. Dispose of the prunings by burning or the green bin. If you can remove the affected branches do so but be sensible and do not take the tree back to a stump; it is not that necessary. If the tree is completely covered in the galls and offends thine eye then removal may be an option; but do not replant the space with another apple because of the apple re-plant disease and also the risk of reinfection with the crown gall bacterium.
Regards Sally Wright.
ps the other thing is woolly aphid - squish them using a stiff scrubbing brush whenever you spot them.
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Stephen
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Re: Lack of fungal diseases on trees and top fruit

Postby Stephen » Sun Apr 26, 2020 8:20 pm

Welcome Ian.
I'm sorry, I'm better at asking questions than answering them helpfully.
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