Q.Fruit Saplings
I don’t know if this applies to all fruit saplings, but I have a few that I have grown from pips who’s leaves are starting to curl up and I’m not sure why. They are all kept in a glass greenhouse whose temperature fluctuates depending on the weather, and drops to approximately 8 degrees in the evening. Can you please advise what I should do? Kind regards David
Certified GKH Gardening Expert
Citrus leaves will curl for just about any little thing that happens. They are typically quite hardy, but they will get destroyed by spider mites. I see the signs. I battle these all year with my indoor citrus trees. I would treat with neem oil, or the active chemical in it called Azadirachtin.
To be sure, I would check the pH and nutrient levels in the soil after correcting the issue.
https://www.gardeningknowhow.com/plant-problems/pests/insects/spider-mite-treatment.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
