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For Immediate Release
Monday, June 2, 2003
Contact: Jeannette Warnert
UC Ag and Natural Resources
(559) 241-7514
jwarnert@uckac.edu
TROPICAL PAPAYA A POSSIBILITY
FOR CALIFORNIA SMALL-SCALE FARMERS
FRESNO - University of California Cooperative
Extension farm advisors believe the papaya, a fruit most often associated
with the year-round mild and humid climates below the Tropic of
Cancer, could be a profitable new specialty crop for California
farmers.
Growing specialty crops can be like shooting
at a moving target, farm advisors say. When a new crop proves successful,
it’s not long before more farmers jump in and a glut forces
prices down. That has UCCE’s small-scale farm advisors continuously
searching the globe and field-testing new ideas to share with California
growers.
Six UCCE farm advisors visited the state of Veracruz,
Mexico, May 19-23, 2003, to study crops and growing methods for
a wide array of exotic fruit, including mangos, tamarind, pineapple,
soursap, zapote, cashew fruit, vanilla, papaya, mangosteen and lychee.
Despite the vast difference in climate, many of the crops have potential
for California farms and greenhouses.
Papayas, for example, are currently under study
at the UC Kearney Research and Extension Center near Parlier. UCCE
Tulare County farm advisor Manuel Jimenez believes the tropical
delicacy could be a part of some small-scale farmers’ rotations.
“Papaya is very inexpensive to grow, even
when compared to traditional vegetables, such as squash,”
Jimenez says. In contrast, blueberry, an increasingly popular specialty
crop, is 'outrageously expensive to start',” he said.
Papayas don’t seem to mind Central California’s
warm summer sun, and even though Jimenez’s first crop at the
Research and Extension Center didn’t ripen last year, he is
not deterred. Unripe papayas are suitable for cooking and popular
with some consumers of Asian descent. The unripe fruit may be baked
like winter squash or pumpkin or used for chutney.
Most of the ripe papayas found in California
grocery stores are imported from Hawaii or Mexico. The smooth-textured,
vitamin C-rich melonlike fruit has yellow to orange flesh and skin
color that ranges from green to orange to rose.
Commercial papaya production has been troubled
worldwide by the plants’ high susceptibility to plant viruses.
Most papayas grown in Hawaii are genetically modified to be resistant
to disease. In Veracruz, Mexico’s No.1 papaya producing state
and the site of the recent Mexico study tour, farmers are finding
that growing the perennial tree as an annual crop helps alleviate
viral losses.
At Rancho Neveria, a small farm near the Veracruz
city of Cardel, agronomist Honorio Fernández spoke to the
UC farm advisors from meticulous handwritten notes about the ranch’s
annual papaya production system. Fernández outlined details
from the soil mix for growing seedlings to plant spacing in the
field. About 2,700 seedlings are transplanted per hectare. Before
harvest, a quarter of the plants have been pulled due to viral infection.
Nevertheless, the approximately 2,000 remaining plants produce a
profitable crop before succumbing to disease.
At Rancho Neveria, plants are started in the
screenhouse and field planted any time of year, giving farmers the
option of aiming to market fruit at a time when prices are expected
to be at their highest. In California, the climate gives farmers
less flexibility. A typical San Joaquin Valley winter will kill
the plant, squeezing the growing season between February and November.
However, Jimenez says he will try to plant papaya in late summer,
and then protect the small bush under a movable “hoop house,”
which many vegetable producers already own.
“This is an exciting crop to grow,”
Jimenez said. “I’d be happy to see a few farmers attempt
a crop like papaya.”
For more information, contact Jimenez at mjjimenez@ucdavis.edu,
or study-tour farm advisor participants Benne Fouché (San
Joaquin County) at bfouche@ucdavis.edu,
Mick Canevari (San Joaquin County) at wmcanevari@ucdavis.edu,
Ramiro Lobo (San Diego County) at relobo@ucdavis.edu,
Richard Molinar (Fresno County) at rhmolinar@ucdavis.edu,
Maxwell Norton (Merced County) at mnorton@ucdavis.edu,
or Jesús Valencia (Fresno County) at jgvalencia@ucdavis.edu.
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