Nobody's Mad

Spinach Leaf Miner

July 14th, 2009 mgb No comments

Top - Spinach Leaf Miner Damage

Over a couple of days about a third of the swiss chard leaves developed large brown areas from the size of a quarter up to more than half of the leaf. The damage resembled Sunset pictures of Anthacrose and Excessive Sunlight but the circumstances weren’t right. Then we noticed small white blobs under the leaves but they weren’t fuzzy enough to be shed aphid skins. We have now decided that we’re dealing with spinach leaf miner.

The pictures are from a small patch that we just found on one of the remaining leaves. The white blobs – always in a row under the leaf at the edge of a brown patch – are the empty spinach leaf miner eggs.

Underside - Empty Spinach Leaf Miner Eggs

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