I discovered today that both my beds of Leeks on the Allotment have been attacked by a small mite which I have found on every leek after pairing back the browning stem. All are ruined and are now in the compost bin. I'm baffled as to what has caused this. The mite is red and looks like a chrysalis. Anyone know what this chrysalis is likely to produce? Any idea what to do to prevent this in the future. I can't understand why the Leeks were ready to be lifted. I usually do that in March. Very strange. Anyone help please? I am very disappointed to have lost the best part of 200 Leeks.