CRISPR gene-editing allows scientists to make precise changes to a plant’s DNA. In citrus, researchers are using it to tweak genes that influence how trees respond to HLB. Crucially — from a regulatory point of view — many of these edits do not involve adding foreign DNA. Instead, they create small changes that could, in principle, occur naturally or through conventional breeding — only much more slowly.

There's tons of research papers out there if you keyword search CRISPR gene-editing citrus trees on pubmed.

https://pubmed.ncbi.nlm.nih.gov/41123679/

https://pubmed.ncbi.nlm.nih.gov/40275470/

Where is your ability to seek out sources of research when you read a summary article directed at the layperson?