mystlw
No it is not as simple as that, the sticky traps (blue) I think for leaf miner is only a partial step.
I did read that Spinosad could be used for the treatment of leaf miner. I actually bought some, and forgot till now what I bought it for.
I also read that neem oil could be used, but I personally have had no luck with neem oil for anything.
Edit:
Forgot to answer your question about making your own. I read to use blue plastic plates or cups and to cover them with vaseline and hang them by the plants. So you can see that would not look very good if you have over two hundred named varieties, many NOIDs and hundreds of seedlings. But I don't know how much area would be covered by a single trap. I might try that on a small area. And of course vaseline on a plate or cup would not trap any birds. It does not have to perform up to mouse catching standards just sticky enough for small insects. Of course they would have to be monitored and replaced fairly often, but then they would also be cheap.
