A version of this story appears in the February 2017 issue of National Geographic magazine. Citrus, in many ways, stands alone. So many cultivated species have come from so few primary ancestors.

While the citrus gall wasp's natural host is the Australian finger lime (Citrus australasica), it can affect all types of ...

The Citrus Hills Garden Club welcomed Paul Lloyd Jones, ISA-certified arborist, palm specialist and tree health technician ...