Quoted By:
Question
Based in urban UK, growing some runner beans over the summer. Half of them were pot-based in germinating compost before being transferred to soil, the other half went straight in.
I've been having a problem with blackflies. Now, I want to avoid using pesticides as much as possible - the idea being to compare home-grown beans to the supermarket variety. Aside from a couple of slug pellets at the base of the bean poles, I haven't use a thing.
From what I've been able to gleam, it was my understanding that the blackflies would be taken care of by the aphids. And we've been having a bit of a heatwave here recently so I was really surprised to find them on the leaves this morning.
What can I do to keep them away? Ideally I'd rather not have to check every individual leaf on every single stalk for the bloody things.
