annastasia76 wrote:does anybody know how big these leaf miners are?? I have never seen them. I have something taking the leaves off my pepper sprouts (and only my peppers). I was thinking of making a net of fabric netting or gauze around my planters to see if that would prevent them from getting to my just sprouted plants.
Leaf miners don't take leaves off. They burrow into them and chew their way around leaving very distinctive squiggly trails.
Row cover or gauze can work to keep insects away from plants IF you know what you are dealing with and IF you know that they aren't already there, in the soil or hidden in/on the plant somewhere. Otherwise you are just caging them in with your plant. Applestar's suggestion of slugs sounds like a good possibility. Another way to look for them is just to lay a board down directly on the soil and leave it for a couple days. Come back in the daytime and turn it over. If you have slugs, they are likely to be hiding under the board.