My sweet peas, growing up a hazel tunnel with french beans, have been flourishing but now have green aphid infestation and a lot of powdery mildew. Currently I'm wiping the aphids off by hand daily (horrid job) which is limiting them a bit (very few ladybirds in our garden this year). I've seen online a recipe for treating both organically with a mix of 1 Tablespoon of baking soda & 1/2 teaspoon liquid soap to a gallon of water - any experience of how effective this is?
And will the aphids & powdery mildew also infect my french beans? (At the moment they are looking fine)