A new pest is reported in Leeds allotments: allium leaf miner. These are tiny flies that lay their eggs on our onions, shallots, leeks, garlic, etc. The maggots tunnel down through the leaves, causing damage that lets in fungal disease. More information is available from a post at Hollin Lane Allotments’ web pages.
Allium Leaf Miner
A new pest is reported in Leeds allotments