Much of the
Tar Heel flue-cured crop had been planted by the time the rains fell.
"Some growers started the week of the 4th, but most started the week of
the 10th,"says Matthew Vann, N.C. Extension tobacco specialist.
"Conditions so far have been pretty good, and we are making good progress.
But with saturated soils, we may not make so much progress this week."
Wednesday, fortunately, was clear.
About 70
percent of the S.C. crop had been transplanted when the rain started.
"Most fields look good," says William Hardee, S.C. area
Extension agronomy agent for Horry and Marion counties in the Pee Dee.
"There was a little sunscald and wind damage." The soil
temperature had been very high when the plants went in, but there were no real
issues to this point. "It had been hot and dry in April, so the late April
storms will come in handy if it doesn't rain too much," he says.
"Once we get back in the field and cultivate, I think we are looking
at a good crop." He calculated that contracts had been cut by 15 to 20
percent on conventional flue-cured and 40 to 50 percent on organic tobacco.
If you
received some of this excess moisture, consider adjusting for leaching. Where
rain fall exceeds two inches, Vann says, consider replacing 100 percent of all
nitrogen applied to date. Where rainfall is less than two inches, consider
replacing no more than 50 percent. Additional adjustments can be made closer to
layby if needed, based on crop response. Apply one pound of potassium for
every pound of nitrogen, says Vann. "Potassium is not as leachable as
nitrogen and is typically applied at a 2:1 ratio. Therefore, adjusting at a 1:1
ratio will bring the nutrients back to the preferred balance."
Remember: Auxin herbicides and tobacco do not mix. The new technologies that will allow more extensive use of auxin herbicides on cotton and soybeans set the stage for potentially damaging contamination of tobacco plantings. Drift from wind during application of 2,4-D and dicamba can lead to physical contact. Both chemicals can also vaporize and spread to neighboring fields through volatilization.
Remember: Auxin herbicides and tobacco do not mix. The new technologies that will allow more extensive use of auxin herbicides on cotton and soybeans set the stage for potentially damaging contamination of tobacco plantings. Drift from wind during application of 2,4-D and dicamba can lead to physical contact. Both chemicals can also vaporize and spread to neighboring fields through volatilization.
Tobacco
losses from auxin herbicides cannot be measured only in pounds per acre,
says Vann. "There are also losses in marketing opportunities."
Auxin herbicides are not labeled for
use in production of tobacco. "Therefore, if a drift event (physical or
vapor) occurs, residues of a pesticide not labeled for production can be found
on cured leaves." The response from purchasers will certainly be
negative.
Words to
remember: "It is my firm belief that the damage done to the
reputation of U.S. tobacco because of illegal residues is much greater than the
reduced leaf yield done through physical injury," says Vann.
And it can be
even worse for organic tobacco growers. "A drift event could
jeopardize organic certification," Vann says. "It would likely
require a three-year interval for organic re-certification."
One way you
can help yourself: "Know your neighbors and be sure they know you,"
says Don Fowlkes, manager of agronomy, Burley Stabilization Corporation.
"If you have a neighbor who has pastures and fence rows (or crop land)
that might be sprayed, be sure they know the location of your tobacco fields.
Visiting them ahead of time can go a long way toward preventing problems."
Correction: The
company Contraf-Nicotex-Tobacco, which TFN identified in the last issue as a
Brazilian company, is actually headquartered in Germany with activity in
Brazil. It has recently associated itself with United Tobacco
Company.