you'll be fine i heard on the grow report it evaporates quick enough you can use it pretty much till a few days before harvest. On the bottle of spray i got it says the same thing
VOYAGER Reviewed by VOYAGER on . Bugs while budding.. help please Hi, My plants seem to have attracted some little white butterflys. T hey appeared a few months back and there were eggs on the leaves so I got some Yates Pyrethrum from the local plant shop to try get rid of them. Only had to spray once and it worked, got rid of the pests. However these bugs seem to have come back and I've noticed a few eggs on the leaves again. Plants have been flowering for a couple of weeks. Is it still safe to spray them now buds have started to form? I got the Rating: 5