Peas - Powdery Mildew?
A couple of weeks ago my peas started to get covered in what can only be powdery mildew, it's powdery and like mildew and has coated both sides of all the foliage.
The pods look a bit tatty but the peas are fine inside and it doesn't seem to be interest in any of my other veggies so I have been trying to ignore it, but I'd like to try and avoid getting it next year.
I know peas concentrate nitrogen in root nodes and in the past I have dug the roots into the soil after trimming off the foliage. From what I have read about powdery mildew the infection is very shallow on the foliage but the spores will overwinter on dead foliage. What I am trying to work out is whether or not there is a risk a spores overwintering on the roots if I dig them in- the foliage is going in the bin, as have all the infected pods so far. Or should I dig up all the roots and get rid of them too?
Not completely sure why they got infected, I was watering them quite well I thought, but I did plant the rows a bit close which made it difficult to get the watering can in and probably meant I had too many plants for a given area of soil. I'm hoping that if I space them properly next year and water even more it will help, but getting rid of the spores seems like a good idea first.