I'm a new grower and I noticed gnats on top of my soil. I read that a grower in the forum group covered his soil with sand. Has anyone had any luck with this and will it harm the plant? Help me please! (I don't know what the hell I'm doing)
It won't harm the plant. Actually what that does is trap the larve in the soil so that they can't emerge..Problem is by the time they are in the soil, damage is done. The knat larvee eat the fine root hairs of the plant. Sand will help, but you still have to get rid of the adult population in the room. A cheap fix is to use fly strips to catch the buggers, or you could just plant catnip in your garden which isa repellant to knats
Umm i would not recommend the sand thing. It might work temporarily, but if you start with the sand there it will make your soil very heavy by the time you have watered it twice a week for three months or more
did you really say make your soil heavy? Can you explain that? It won't be any heavier in 3 months then when you put it on.
Think they mean heavy as in holds water. Jansjukebox got the rite idea's also try tiny amount of hormone rooting powder in the water and catching spiders lol. Well worked for me last year.
You can also place slices of fresh potato on the surface of the soil, the gnats will come out to feed on it. Discard.
Wouldn't that just attract more gnats? I'd go with the flystrips, or a bug zapper for dramatic effect.
