Questions about Gesal Trauermücken-Stop

.... I have just accidentally used the double dose - does anyone have any experience? Do the plants suffer a lot or do they even die? Top up with plenty of water? Many thanks for quick answers :-)

This poison has rather rapidly increased the infestation than reduced it. In combination with yellow stickers and still nothing helps. 2 years ago I had to throw away all my plants because of these bugs. I only give minimal water once a week? Can anyone help me? I am on the verge of despair. I have built up a nice little arsenal of plants at home and now I am about to throw them all away again.

I bought it in Migros, didnt work at all. Save your money.

Can I also use this on vegetable plants or does it affect the edibility of the fruit?