PRESS :: Releases
FOR IMMEDIATE RELEASE
Contact: Libby Earthman, Colusa County Almond Project Coordinator
530-756-8518 ext. 12, libby@caff.org
Not Going Up in Smoke: Arbuckle Orchard to Host November 19th "Chip Off"
PDF version
DAVIS (November 8, 2007)
Arbuckle, CA: Twenty-seven year old Jack Hurley used to farm 8,000 acres of almonds with his
family in the Bakersfield area, but he recently gave up farming to help other San Joaquin almond
growers comply with air quality regulations.
After college graduation, Hurley recognized a real need to provide orchard brush
chipping services for almond growers in regions where burning orchard brush is no longer
permitted. Hurley now provides brush chipping throughout the San Joaquin and Sacramento
Valleys.
Hurley is not alone in his recognition of this growing market. Over the past decade, a
number of new chipping and shredding machines have come on the market including ones with
names such as Pow’r Trak Shredder, and Brush Bandit.
Almond and other tree crop growers are encouraged to attend a free, informational field
day on November 19th in Arbuckle, CA (Colusa County) to learn about the options growers
have for chipping and shredding orchard brush.
This free, rain or shine event will include presentations by University of California Farm
Advisor and almond farmer Brent Holtz, local air quality experts—and of course—a roaring
demonstration of chipping and shredding machines.
Chipping and shredding orchard brush continues to gain popularity as the multitude of
benefits to soil quality from brush shredding become better understood, and as agricultural
burning regulations make burning more difficult due to air quality concerns.
A consortium of local groups, including the Colusa Resource Conservation District,
Community Alliance with Family Farmers, Natural Resource Conservation Services, and
Audubon California will host a November 19th field day to bring shredding and air quality
experts to local farmers.
According to University of California research, chipping or shredding brush and leaving
it on the orchard floor provides significant benefits to soil quality. These benefits include
increased organic matter resulting in better soil tilth and water infiltration, a more robust
microbial community, and increased nitrogen content.
Brent Holtz, has helped lead much of the research. Dr. Holtz has compared orchard
soils with and without brush chipping. “The soil with wood chips is building up high
populations of free-living nematodes and reducing the number of parasitic nematodes that attack
trees. … [Parasitic] nematodes are a big problem” in many California orchards.
In addition to the benefits to the orchard, reduced burning helps protect local air quality.
It’s long been recognized that smoke—whether from cigarettes or wood fires—can threaten
human health, particularly for those with respiratory problems, and young and older residents.
Growers in the San Joaquin Valley have been under increasing brush burning restrictions
since 2005. Many have found chipping only slightly more expensive, and enjoy the freedom of
being able to chip without waiting for a permit or permissible burn day.
The main drawback to chipping or shredding orchard brush is the potential for
incomplete decomposition of the wood particles at harvest time, meaning more “trash” for the
almond huller. The amount of rain and the type of machine used to chip or shred the pruning
plays heavily into whether or not this is a problem at harvest.
Registration for the field day begins at 8:30AM, presentations begin at 9AM. From the
town of Arbuckle, head West on Hillgate Rd. Take a left (heading South) on Almond Ave. The
orchard will be on the left, 500 yards part the intersection with Grant Ave.
Please call Libby Earthman, Community Alliance with Family Farmers, for more
information: (530) 756-8518 x12.
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The Community Alliance with Family Farmers is a 501(c)3 (non-profit) building a movement of
rural and urban people to foster family-scale agriculture that cares for the land, sustains local
economies, and promotes social justice.
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