I’ve been having issues with whitefly for some time. They are a tough one to remove fully. I’ve tried everything. Ruined a whole crop to the little pests already. They are resistant to absolutely everything.
Then I stumbled across some info from a local farmer who uses something very easy to control Whitefly.
Earthworm castings or ewc as you’ll spot me calling it. If you top dress your soil or coco with fresh ewc you will never see Whitefly again. I can’t believe it took me so long to work out. I have a wormery too and I had the answer to my problems right there lol! Since putting ewc into the coco I no longer have a problem. It is such a relief to finally end their dominant rein in my flowering room. I hope this information can help others too. No need for chemicals or crazy concoctions to spray anymore