Last year our leek crop was wiped out by ALM, so we bought some micromesh to try to stop the blighters.
I've raised the seedlings in the greenhouse and the first batch are ready to plant out. Our mesh is in place.
Question is, should I wait until later in the season to avoid the first flight of the flies ? I have read different times for the 1st attack period, some say March and April, others into May.
Alternatively, a bloke on our site only raises his mesh to plant or weed when it is raining, to hopefully avoid attack. Is there any merit in this?