M. Nishina, A. Arakaki, R. Ebesu, N. Nagata, R. Hamasaki,
S. Fukuda, R. Sakuoka, H.D. Sato, and C.L. Chia
Persons: S. Ferreira, R. Mau, and R. Uchida
Project Goal: To increase the
production of papaya in the State of Hawaii.
In July 1998, the University of Hawaii College of
Tropical Agriculture and Human Resources provided grant
support to increase efficiency and productivity of papaya
growers in Hawaii. CTAHR extension agents and a
multi-disciplinary collaboration of specialist will
conduct educational classes on the culture and production
of papaya at various sites throughout the state.
|| FRESH PRODUCTION
||55.8 MILLION LBS.
||58.2 MILLION LBS.
||56.2 MILLION LBS.
||41.9 MILLION LBS.
||37.8 MILLION LBS.
||36.0 MILLION LBS.
||34.4 MILLION LBS.
Figures obtained from the Hawaii Agricultural
KEY COMPONENTS OF THE EFFORT TO
ADDRESS ISSUES AND PROBLEMS:
1) New and Existing Farmer Education:
The termination of sugar operation at Waialua
Sugar, Oahu Sugar, and Mcbryde Sugar Companies and
reduction of operation at Lihue, Kekaha, and Pioneer
Mill has made additional acreage available for
alternate crop production. The many displaced former
sugar workers in these areas are beginning to farm
these lands to develop alternate sources of revenue.
These producers have little experience in papaya
farming and require intensive educational sessions to
provide them with basic knowledge to grow papaya
profitably. The same situation also faces large
corporate farms, which are attempting to grow papaya
to provide alternate sources of revenue. The major
problems that face these new growers are disease and
pest (mites and leafhoppers) control as well as
proper soil nutrition.
The field demonstration teaching method will be
used to increase efficiency and productivity of
papaya growers in Hawaii. CTAHR extension agents and
a multi-disciplinary collaboration of specialist will
classes on the culture and production of papaya
at various sites throughout the state.
2) Transgenic Papaya Education:
The discovery of the papaya ring spot virus (PRV)
in a commercial planting in Puna in 1992 had a
significant impact on annual production with a drop
to the 40 million pound range. A reduction of
approximately 15 million pounds from the years prior.
While annual production dropped, the percent of
fruits grown on the island of Hawaii remains constant
because new plantings moved from Puna to former sugar
lands along the Hamakua coast. The movement of
production was facilitated by the land made available
from the termination of sugar production at Hilo
Coast Processing and Hamakua Sugar companies. The
reduction of total fresh fruit production is directly
related to the spread of PRV in the commercial
production sites in Puna.
The development of the transgenic
"Rainbow" and "SunUp" papaya
varieties will allow papaya to be grown in the virus
infected areas on Oahu and Hawaii. CTAHR has accepted
the responsibility to provide educational sessions
for both commercial as well as the home producer as
required by the license agreements signed by the
Papaya Administrative Committee (PAC). In order to be
proactive, it is important that these new varieties
are planted in non virus areas to evaluate it for
adaptability and performance (fruit size, yield,
classes will be held to certify both commercial
and home producers who wish to purchase the new
transgenic papaya varieties.
3) Transgenic Papaya Varietal Evaluation:
Extension faculty will install cooperator
trials of transgenic varieties to observe fruit
quality and production under different environmental
4) Technology Transfer:
Production of a multi-disciplinary comprehensive
papaya production in Hawaii CD-ROM and video.
Additional research and developments to be added as
First draft of the papaya
production manual has been circulated to project
investigators. At present, revisions are being made.
5) Marketing and Promotion.
CTAHR agents and specialists will work with the
PAC and the Hawaii Department of Agriculture in
monitoring new plantings and developing and
marketing and promotion strategies.
1) A significant amount of growers will increase
their knowledge in the culture and production of
papaya in Hawaii through educational classes and
2) Adoption of recommended practices will increase
efficiency and productivity of papaya growers.
3) New transgenic
papaya varieties will allow continued papaya
production in areas infested with the PRV.
4) An effective marketing strategy will be
developed to allow commercial papaya producers to
receive profitable returns for papaya produced.
5) Production of a comprehensive papaya production
CD-ROM and video.