the sulfur is ok and may help. the avid could make you sick if you use it in flower.
most will add wetable sulfur to the soil, it works best in tandem with a sulfur burner, but a burner can't be used indoor. russets attack from inside the plant, so foliars and sprays won't do dick. you have to poison them from the inside out.
russets spend the majority of their life cycle inside the plant. they only are on the surface at the very end. at that point they've already made the next generation. that is why they are so hard to get rid of once they take over.
most times russets will only be on the surface once they are too crowded inside the plant.
most will add wetable sulfur to the soil, it works best in tandem with a sulfur burner, but a burner can't be used indoor. russets attack from inside the plant, so foliars and sprays won't do dick. you have to poison them from the inside out.
russets spend the majority of their life cycle inside the plant. they only are on the surface at the very end. at that point they've already made the next generation. that is why they are so hard to get rid of once they take over.
most times russets will only be on the surface once they are too crowded inside the plant.