| Material Information
||Control of insect pests of flue-cured tobacco /
||1 sheet (4 panels) : charts ; 23 x 20 cm. folded to 23 x 10 cm.
Tissot, A. N ( Archie Newton ), b. 1897
Kuitert, L. C ( Louis Cornelius ), 1912-1999
University of Florida -- Agricultural Extension Service
||University of Florida Agriculture Extension Service
||Place of Publication:
||Flue-cured tobacco -- Florida ( lcsh )
Tobacco -- Florida ( lcsh )
Tobacco -- Diseases and pests -- Florida ( lcsh )
||government publication (state, provincial, terriorial, dependent) ( marcgt )
non-fiction ( marcgt )
||Statement of Responsibility:
||prepared by James E. Brogdon ; in cooperation with A.N. Tissot and L.C. Kuitert.
| Record Information
||University of Florida
||University of Florida
||All rights reserved by the source institution and holding location.
||oclc - 135021640
COOPERATIVE EXTENSION WORK IN
AGRICULTURE AND HOME ECONOMICS
(Acts of May 8 and June 80, 1914)
Agricultural Extension Service, University of Florida
Florida State University and
United States Department of Agriculture, Cooperating
H. 0. Clayton, Director
Control of Insect Pests
of Flue-Cured Tobacco
Insects may cause considerable damage to flue-
cured tobacco in Florida when not controlled proper-
ly. However, with the insecticides now available
and proper timing of applications, most losses can
be prevented. Aphids (plant lice), budworms and
hornvorms are the major insect pests of tobacco.
Other insects capable of causing considerable dam-
age are grasshoppers, mole-crickets and cutworms.
There are other pests of minor importance.
IN THE PLANT BED
Examine beds closely for insects or insect dam-
age as soon as plants come up. Apply insecticides
as needed. A dust containing 1% parathion and 5%
TDE is effective against aphids (lice), hornworms,
budworms, fleabeetles and climbing cutworms.
Apply at the rate of 1 pound per 100 square yards of
plant bed. To control the same insects with a spray
use one of the following combinations:
Amount to use per
Insecticide 25 gallons of water
50% TDE wettable powder % pound
25% TDE emulsifiable concentrate
(liquid) % pint
15% parathion wettable powder % pound
25% malathion wettable powder 1 pound
40% TEPP emulsifiable concentrate
(liquid) Y4 pint
Apply 3 to 5 gallons of above spray mixture per
100 square yards of bed.
Mole-crickets, cutworms and grasshoppers in the
plant bed may be controlled with a poison bait (see
poison bait section).
WHEN TRANSPLANTING TOBACCO
Even if insects have not been a serious problem
in the plant bed, make a thorough application of the
above dust or one of the above spray combinations
to the plant bed a few days before pulling plants to
be transplanted in the field. Do this to insure clean
plants going to the field.
Wireworms (When Transplanting Tobacco).-Wire-
worms are not generally a pest of tobacco in Florida,
but at times may become troublesome. If wireworms
have caused injury to tobacco in the past or are
expected to be troublesome, they may be controlled
by adding one of the recommended insecticides to
the transplanting water. Do not use more than is
recommended. Use about 200 gallons of transplant
water per acre. Keep mixture well stirred to prevent
settling out of the wettable powders. Add one of the
following insecticides to each 50 gallons of trans-
Insect Material Amount Remarks
Aphids (plant 1% parathion dust 10 to 30 lbs. er acre Apply as needed. For field applications
lice) or the amount of sprays and dusts used will
15% parathion wettable I lb. 15% or juivalent in vary with the size of the plants and equip-
100 gallons o water ment used. Apply as much as will be
or needed to give good coverage. Extreme
4 or 5% malathion dust 10 to 30 lbs. er acre caution should be used in handling TEPP
or or parathion.
25% malathion wettable 4 lbs. 25% in 100 gallons
powder of water
50% malathion emulsifiable 2 pints in 10( gallons
concentrate of water
TEPP (40% liquid) %pint 40% or Cquivalent
in 100 gallons of water
Budworms and 5% TDE or 5% DDT or 15 to 30 lbs. 'er acre, Make applications when worms appear and
Hornworms 1 to 1%% endrin dust depending upon size of plants repeat as needed.
or For budworms, direct nozzles into bud of
50% TDE or 50% DDT 2 to 3 lbs. in enough water to plant.
wettable powder cover an acre 10% TDE or DDT dusts will give better
or results against large hornworms than 5%.
25% TDE or 25% DDT 3 to 4 pints in enough water Larger plants and larger worms require
emulsifiable concentrate to cover an acre more insecticides than do smaller plants
or and smaller worms. Combination dusts
Endrin emulsifiable 1 to 2 pints in enough water containing 1% parathion and 5% or 10%
concentrate (1.6 lbs. to cover an acre TDE will control most insect pests of
actual per gallon) tobacco.
Cutworms, 1.5% chlordane bait 5 pounds per acre for hill Apply before setting plants in the field or
Mole Crickets placement immediately when damage is noticed.
15 to 20 lbs. per acre for
1 to 1%% endrin dust
concentrate (1.6 lbs.
actual per gallon)
2%% aldrin dust
15 to 30 lbs. per acre
1 to 2 pints in enough water
to cover an acre
15 to 20 lbs. per acre
The amount varies with the size of plants.
Parathion gives quick but temporary re-
duction of grasshoppers. Endrin and aldrin
give better and longer control.
Aldrin sprays made from emulsifiable con-
centrate or wettable powder formulations
may be used.
plant u after:
(a) Aldrin % pound (about 1 cup) of 25% wettable
(b) Chlordane % pound (about 1 cup) of 50%
(c) Heptachlor % pound (about 1 cup) of 25%
(d) Lindane % ounce (about 1 tablespoonful) of
25% wettable powder.
Liquid concentrates of the above materials are avail-
able and, when used at rates comparable to those
recommended for wettable powders, have given sat-
isfactory results in most instances.
IN THE FIELD
Dusts and sprays recommended for control of the
most important pests that attack tobacco in the field
are listed in the Insect Control Chart.
Timing of Insecticide Applications.-Inspect to-
bacco frequently and dust or spray when insects or
insect damage are noticed. When insects become
large and infestation is heavy, control becomes much
more difficult. During harvesting season, treat at
least 5 days before priming and only when necessary
to control infestations.
Mole-Cricket, Grasshopper and Cutworm Bait.-
50 pounds corn meal or cottonseed meal plus 2 pounds
40% or 50'c chlordane wettable powder and enough
water to moisten the mixture. Broadcast over area
where damage is done. Use % pound per 100 square
yards in plant bed. In the field use about 5 pounds
per acre for hill placement and 15 to 20 pounds per
acre for broadcast application.
Cutworm and mole-cricket baits are more effective
when applied late in the afternoon.
Ready-prepared baits similar to the above are
available commercially. If used, follow recommenda-
tions of the manufacturer.
PRECAUTIONS: All insecticides used for control of
tobacco insects are poisonous and should be handled
with caution. Parathion and TEPP are especially
toxic to human beings. Carefully observe manufac-
turer's label precautions for all insecticides.
Prepared by James E. Brogdon, Extension Entomologist in coop.
eration with A. N. Tissot, Entomologist and L. C. Kuitert, As-
sociate Entomologist, Agricultural Experiment Station, Gainesville,