We have a greenhouse that was over-run with white flies, aphids, and black flies. A friend suggested spraying everything with a "tea" made from tobacco. We tried it and it didn't work. Now, We've pulled everything out of the greenhouse and it's killing us to just throw it all away, when we have 13 hungry chickens. But, we don't want to poison the chickens either or give them something toxic. I know tobacco leaves have historically been used to keep mites out of coops and nests. But, I assume the chickens weren't eating the leaves. Would the greens be safe to feed to our flock, with two applications of tobacco spray? And, if we soaked the greens in water and rinsed it well, would the answer be different? We appreciate any input!! Thank you!