This has been going on around 5ish months now. We had a chat with a guy at a nursery who suggested to apply white oil (I've attached a photo) x4 every two weeks but it's just gotten worse. We are incredibly novice gardeners
20 April 2021 01:51 PM
Thank you for contacting Yates.
Hope this helps and please do not hesitate to contact us again should you have any other query.