Can anyone tell me whatโs going on with my blueberry bush? Getting new leaf growth but older leaves are looking like this and falling off ๐ญ

This subreddit is not affiliated with ABC's Gardening Australia but serves as a community space for gardening enthusiasts to share advice, tips, and inspiration. --- "In gardens it's not just plants and insects and microbes that grow. People grow too, and the best bit is that they don't realise it's happening. It just happens." Costa Georgiadis