Are we safe from onion fly yet?
Our lottie always get really bad onion fly so I decided to grow my leeks under fleece this year. They seem to have escaped the fly but now I noticed they have some rust on them. I would like to remove the fleece to help increase ventilation (and hopefully sort out the rust) but I am worried that the onion fly will then get in.
Any ideas
Pass we have white rot... but don't get the fly!
;D