Past Projects

Past Project

Acacia Koa Gene Expression

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.

Continue Reading
Past Project

Acacia Psyllids

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.

Continue Reading
Past Project

Caterpillar Outbreak

Information on the recent outbreak of native koa looper moth from the Division of Forestry and Wildlife.

Continue Reading
Past Project

Genetics and Silviculture

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.

Continue Reading
Past Project

Koa Moth Defoliation

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.

Continue Reading
Past Project

Koa Pollination Biology

Cross-pollination of koa flowers to develop population of known parentage for studying koa wilt genetic markers at the University of Hawaii.

Continue Reading
Past Project

Leaf Form

New research project to understand phenotypic plasticity and adaptation of koa trees by Purdue graduate student.

Continue Reading
Past Project

Parent Tree Selection

Research on the genetics of koa growth, form, and wood quality by Purdue University graduate student.

Continue Reading
Past Project

Subirrigation

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.

Continue Reading
Past Project

Wilt Resistant Koa

Research developments from the Hawaii Agriculture Research Center to develop koa varieties resistant to the deadly koa wilt disease.

Continue Reading