In this video on grafting lemon trees, learn how to graft a tree using T-budding, a method of grafting fruit trees that is easy and that gives a high success rate.
http://fruitmentor.com/citrus-graftin... (Tools and Supplies)
The T-bud is one of the most common methods of grafting trees. It works well not only for lemon grafting, but also for grafting orange trees and for grafting citrus trees of other types. Although this video shows T-budding used for grafting a new tree, this grafting technique is sometimes also used for topworking existing trees and for making fruit cocktail trees.

CCPP budwood ordering video:
   • Ordering Citrus Budwood for Grafting ...  

More information on citrus psyllids:
https://fruitmentor.com/citrus-pests-...
https://fruitmentor.com/asian-citrus-...

For videos on other lemon grafting techniques, please see:
   • Grafting Citrus Trees with the Patch ...   (patch budding)
   • Grafting Citrus Trees - Cleft Graftin...   (cleft grafting)
   • Grafting Citrus Trees - Bud Grafting ...   (chip budding)
   • Grafting Citrus   (bark grafting)

Step-by-step tutorial on T-budding:
http://fruitmentor.com/GraftingLemonT... (step-by-step)

For step-by-step tutorials on other techniques suitable for lemon tree grafting, please see:
http://fruitmentor.com/grafting-citru... (patch budding)
http://fruitmentor.com/grafting-citru... (cleft grafting)
http://fruitmentor.com/bud-grafting-c... (chip budding)

In California, the collection of any citrus propagative materials, including budwood and seeds, from non-registered sources is illegal. Any citrus trees grown or grafted in California must come from source trees registered with either:
(1) The Citrus Nursery Stock Pest Cleanliness Program, administered by the California Department of Food and Agriculture, or
(2) The Citrus Clonal Protection Program, located at the University of California at Riverside.
CDFA program: https://www.cdfa.ca.gov/plant/pe/nsc/...
CCPP: http://ccpp.ucr.edu/