Mandarin tree has yellow and curled up leaves
Fruit and Citrus • Pests
From the photo provided your citrus tree is suffering from leaf miner damage and some nutrient deficiency.
For this we would recommend giving the tree a regular feed with 'Yates Thrive Citrus & Fruit Natural Fish & Seaweed+' and treat the leaf miner with 'Yates Pest Oil - Insect Control Spray'.
Kind regards,
Yates
yates
Answered: 12 Jul, 2021