Before I start splashing out on rather expensive fungal sprays (I was going to try Sulphur Rose), has anyone tried the home made concoctions and found them successful. I've just watched a video showing how to make a BS remedy from baking powder and vegetable oil.
@PeteS You can try it but it's hard to get it right and easy to burn the leaves. When I tried something similar for powdery mildew on courgettes, it did more harm than good. Also, using baking powder rather than baking soda doesn't make sense. The acidic part in the baking powder will react with the basic part (baking soda) when it gets wet and most of it gets neutralized. Here is more about using baking soda. https://www.gardenmyths.com/baking-soda-home-remedy-fungicide-cornell-formula/ Tl;dr it works to some extent when mixed with oil (to stay on the leaves) and soap (to emulsify) but isn't worth using. If you want to try something similar, potassium bicarbonate is much better than sodium bicarbonate, less probable to burn plants. But significantly harder to get - buying it online defeats the purpose of easy home remedies.
Looks as if you have had the wax polish out on Emily Bronte @Mr. Vine Eye, positively glowing foliage!
Pots coming along, two from Tantau,Pure Poetry and Heidi Klum:
Marie Pavie and The Prince:
And two newbies in the ground, Noella Nabonnand and Cramoisi Superieur:
Oh and my eyes were deceiving me, staring intently at tiny white blobs on rose leaves clearly does that @Omori - you are absolutely right, they are cast-off aphid skins, thanks for the additional photo id 😊
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
Console yourself with the thought that my first flush will probably be over while you are enjoying yours @Lizzie27 and @Fire! I’m amazed at how quickly Marie Pavie, the newbie of that group of pots, has grown and filled out - even got tiny buds, so way ahead of the others.
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
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Also, using baking powder rather than baking soda doesn't make sense. The acidic part in the baking powder will react with the basic part (baking soda) when it gets wet and most of it gets neutralized.
Here is more about using baking soda.
https://www.gardenmyths.com/baking-soda-home-remedy-fungicide-cornell-formula/
Tl;dr it works to some extent when mixed with oil (to stay on the leaves) and soap (to emulsify) but isn't worth using.
If you want to try something similar, potassium bicarbonate is much better than sodium bicarbonate, less probable to burn plants. But significantly harder to get - buying it online defeats the purpose of easy home remedies.
Pots coming along, two from Tantau,Pure Poetry and Heidi Klum:
Marie Pavie and The Prince:
And two newbies in the ground, Noella Nabonnand and Cramoisi Superieur:
@Nollie - they do look shiny but I think that’s mostly the flash going off on my camera.
End of term! Can rest a bit and spend time in the garden again.
I hadn’t bothered pricking them out yet but will today.