Kona Extension Office
79-7381 Hawaii Belt Road
Kealakekua, HI 96750-7911

Phone: (808) 322-4884

Fax: (808) 322-4895

Email: tym@hawaii.edu

Ty G. McDonald

Associate Extension Agent 

Specialties:

Landscape and Ornamental Horticulture; Master Gardener Program Coordinator

Education:

M.S. (Agronomy & Soil Science), University of Hawai'i at Manoa; B.S. (Plant & Soil Science), University of Vermont

Selected Publications:

  • Cho, A., A. Kawabata, T. McDonald, and M. Nagao. 2018. Grafting Avocado. University of Hawaii – CTAHR, Cooperative Extension Service Publication F_N-51, July. 2018.
  • Griffis, Jr., J.L. M.M. Manners, T.G. McDonald and Ö. Tuncay. 2018. Advances in the Purple-Fruited Pitanga (Eugenia uniflora L.) Long-term Breeding Program in Hawai’i. Acta Horticulturae 1205: 931-939.
  • McDonald, T. 2017. HILA News. Hawaii Landscape. Landscape Industry Council of Hawaii. Nov./Dec. 2017, 28-29.
  • Cho, A., M. Quintanilla-Tornel, T. McDonald, A. Kawabata, and S. Nakamoto. 2017. ‘Sharwil’ Avocado Identification. University of Hawaii – CTAHR, Cooperative Extension Service Publication F_N-50, Nov. 2017
  • McDonald, T. 2017. Hawaii Island Landscape Training and Certification Programs. Hawaii Landscape. Landscape Industry Council of Hawaii. Mar./Apr. 2017, 12-15.
  • Griffis, Jr., J.L., T.G. McDonald and M.M. Manners. 2017. Seedless Purple-fruited Pitanga (Eugenia uniflora L.) – Another Discovery from the Long-term Pitanga Breeding Project at the Kona Experiment Station in Hawai‘i. Hortscience 52(9): S434 (abstr.).
  • McDonald, T. 2016. Creating loamy lava landscapes in Hawai’i. Arborist News. Western Chapter – International Society of Arboriculture. Vol. 42 No. 3. Fall 2016, 30-32.
  • Griffis, Jr., J.L., T.G. McDonald and M.M. Manners. 2016. Preliminary Evaluation of Effects of Spraying Aminoethoxyvinylglycine (AVG, ReTain®) on Purple-fruited Pitanga (Eugenia uniflora L.). Proceedings of the Plant Growth Regulation Society 2015: 94-97.
  • McDonald, T. Grafting Avocado: Part 1- Theory and Tools. 2012. Video, (11:19). Hawaii Tropical Fruit Growers Association and University of Hawaii- CTAHR. http://youtu.be/PpEtnElQonQ.
  • McDonald, T. Grafting Avocado: Part 2- Making the Graft. 2012. Video, (13:58). Hawaii Tropical Fruit Growers Association and University of Hawaii- CTAHR. http://youtu.be/fIl6IOt7z1g.