Successful reforestation of native Hawaiian forests requires using genetically appropriate seed sources. This study aims to identify the genetic adaptations of koa trees to environmental conditions in different ecosystems in Hawaii.
We hope to discover whether controlling acacia psyllids can reduce the amount of forking in koa seedlings. If so, this may be a silvicultural solution for growing single-stemmed trees that could someday be made into traditional canoes.
Information on the recent outbreak of native koa looper moth from the Division of Forestry and Wildlife.
A new extension project will demonstrate increased koa growth and productivity gained from planting selected koa trees using the best silvicultural practices. We will establish accessible demonstration plantations and develop a practical user-guide.
This study will help us to better understand the effects of the koa moth, Scotorythra paludicola, how long it takes for a koa stand to fully recover, and to expand the knowledge about koa stand dynamics.
Cross-pollination of koa flowers to develop population of known parentage for studying koa wilt genetic markers at the University of Hawaii.
New research project to understand phenotypic plasticity and adaptation of koa trees by Purdue graduate student.
Research on the genetics of koa growth, form, and wood quality by Purdue University graduate student.
The purpose of this demonstration project was to test the use of a scientifically-proven irrigation technology known as sub-irrigation for native plant nursery production for forest restoration programs in Hawaii.