If you’re wondering why your tomato leaves are curling, your plants may be diseased, have a virus, or be riddled with pests.

More information: Ayesha Badar et al, Microbiota transplantation for cotton leaf curl disease suppression—core microbiome and transcriptome dynamics, Communications Biology (2025). DOI: 10.1038 ...

When you're growing your tomato plants during the summer, you might notice some with curling leaves. Here's why that happens and how to stop it.