The dream of generations of cotton growers
is about to be realized - the elimination of the boll weevil. It's already
happened in Georgia. Even though a few boll weevils linger, it's no longer
an economic factor. In 1983, Georgians harvested 115,000 acres of cotton.
By 1997, due mainly to the success of the Boll Weevil Eradication Program
(BWEP), 1.4 million acres of cotton were harvested. Before the BWEP (1971-1986),
Georgia growers averaged 482 pounds of lint yield per acre. After the program
(1991-1997), the lint yield averaged 710 pounds per acre.
"It wasn't the only reason for the increase
in production, but it was a major factor in a rebirth of cotton in Georgia,"
said Phillip Roberts, extension entomologist for cotton at the University
of Georgia. "It made cotton easier to grow."
Some sources say that, in the early 1890s,
boll weevils reared their ugly heads in the U.S. near Brownsville, Texas
and haven't left - yet. By the 1920s, the pesky insects had infected all
cotton producing areas in the southeast. By the early 1950s, the restless
weevils had moved west. Boll weevils, AKA anthonomus grandis, are a destructive
force to cotton crops and have pushed many cotton growers out of business.
As a result, some areas of the Cotton Belt are no longer producing cotton.
In 1978, after a referendum vote by growers
in North Carolina and Virginia, a trial program was initiated. Proclaimed
an overwhelming success, cotton insect control costs were reduced from
50% to 90%.
"There were hard times, and patience was
required to endure a couple of years of higher than expected losses from
aphids and armyworms but once the program was completed, the numbers dropped
back quickly to lower levels than pre-eradication," Roberts said.
Insect control costs and crop damage dropped
an average of 60% in Georgia, he said.
"The eradication program is more intensive
and is expected to cause higher numbers of other pests due to the massive
destruction of 'beneficials,' but the benefits are well worth it," Roberts
said.
Mississippi is beginning to see the light
at the end of the tunnel. In the fall of 1997, the BWEP began in two of
the state's four regions, according to Farrell Boyd, state manager of BWEP
in Mississippi.
"The program began in the two eastern
regions of the state," Boyd said. "This covers an area approximately from
the central to the eastern portions - all of the hill areas. The South
Delta, which falls in Region 2, started in 1998. The North Delta, Region
1, which covers Washington and LeFlore counties to the north, started the
program in 1999."
The program will continue for at least
four more years, Boyd said.
"The entire Delta region is now in the
program," he said. "This past year, there were slightly over 531,000 acres
of cotton in Region 1. And there were about 189,000 acres in Region 2."'
The program is funded through an annual
assessment fee to cotton growers of $22 per acre for a period that lasts
five to six years, Boyd said.
Because of the early season intensive
spraying, some farmers complain about intolerably high levels of other
pests, he said.
"That happened in 1995, but in the same year,
my region was not in the program and we were eaten up by armyworms, too,"
Boyd said. "The program always gets blamed, even though there's no proof."
After the active phase of the program,
it's difficult to say how much money cotton growers can expect to save,
Boyd said.
"In Alabama, there are some growers who haven't
sprayed cotton in three years, but that's an extreme example," he said.
"Savings of 50% to 90% in insect control are easily achieved."
In Georgia, post program control costs
and damage were reduced to less than $60 per acre from a high of $178 per
acre, Roberts said.
"Since sprays are no longer needed for
boll weevil control, producers are able to utilize a truly integrated approach
to pest management," Roberts said. "Georgia cotton producers have moved
from an insecticide-based system to a biologically-controlled system for
insect pest management. Natural enemies are now the first line of defense."
After eradication has been achieved, crops
are continually monitored and maintained, Boyd said.
"Until the boll weevil is completely run
out of the U.S., there is a risk of re-infestation," he said. "Maintenance
assessments vary from state to state, depending on how much each state
puts into the program, and run anywhere from $5 to $12 per acre."
Once Mississippi is declared weevil free
by the Bureau of Plant Industry, regulations on moving equipment and migrant
workers into and through the state will be enforced, Boyd said.
"There's a push for a federal quarantine
as well as a state quarantine," he said. "The state would enforce the federal
quarantine, so there is a lot of discussion about how that would be handled.
If there is not some type of quarantine, there will continue to be little
infestations everywhere. Every time equipment or workers in Georgia or
Alabama are moved, you can almost always trace a new weevil infestation
to that movement."
In the two eastern regions of the state,
the program has worked as administrators hoped and the same results should
translate to the Delta, Boyd said.
"We have some areas that we didn't spray
at all last year," he said. "Because we are surrounded by eradication in
Louisiana, Arkansas, and starting this year, Tennessee, the program's success
should show up even better in the Delta."