hi!
my grandfather owns a plow of land and he did some experimenting on organic pest control. what he came up is the nettle spray.
basically take whole nettle plants you pulled out, about as much as you can carry in two hands, and dump them in a barrel of water. leave in sun or shade for a while until it starts to stink like decay. take the plants out, pour the juice into the sprayer, and make the life for the pests miserable.
note- grandpa never had problems with this, but maybe it would be good to spray a little at the start to see if it burns the leaves. than the juice needs more water.
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