Agronomic Crops

GRAIN SORGHUM INSECT MANAGEMENT
General Comments and Guidelines
You can expect maximum yield production of grain sorghum by following recommended production practices. One key component
should be applying proper control measures according to economic thresholds. Scout fields at least weekly, depending on
growth stage and the possibility for insect pest infestations. Timely applications of insecticides are also important once economic
thresholds have been reached or exceeded. Insecticides do work. Apply them when insects are in the early growth stages.
Soil Insect
Pests
Insecticide
seed treatments
clothianidin (CN)
Poncho 600
NipSit 5FS
imidacloprid (C)
Gaucho 480
thiamethoxam (CN)
Cruiser 5FS
In Furrow, Banded,
or t-Banded
chlorpyrifos (OP)
Lorsban 15G
terbufos (OP)
Counter 15G
Foliar sprays
b-cyfluthrin (P)
Baythroid XL 1EC
carbaryl (C)
Sevin 80S
Carbaryl 4L
Sevin XLR Plus 4L
chlorpyrifos (OP)
Lorsban 4E
cyfluthrin (P)
Tombstone 2EC
esfenvalerate (P)
Adjourn 0.66EC
Asana XL 0.66EC
gamma-cyhalothrin (P)
Declare 1.25EC
λ-cyhalothrin (P)
Karate Z 2.08CS
Lambda-Cy 1EC
Silencer 1EC
Tiaga Z 1CS
Warrior Z 1CS
Z-cypermethrin (P)
Mustang Max 0.8EC
Amount of
Formulation per Acre
(5.1 – 6.4 oz./cwt)
(5.1 – 6.4 oz./cwt)
(8 oz./cwt)
(5.1 oz./cwt)
8 oz./1,000 row
feet
7 oz./1,000 row
feet
2.0 – 2.8 oz.
1.25 – 2.5 lb.
1 – 2 qt.
1 – 2 qt.
16 – 32 oz.
2.0 – 2.8 oz.
5.8 – 9.6 oz.
5.8 – 9.6 oz.
1.54 oz.
1.92 oz.
3.84 oz.
3.84 oz.
3.84 oz.
3.84 oz.
3.2 – 4.0 oz.
Pounds Active
Ingredient per Acre
0.019 – 0.022
1 – 2
1 – 2
1 – 2
0.5 – 1.0
0.038 – 0.044
0.03 – 0.05
0.03 – 0.05
0.015
0.03
0.03
0.03
0.03
0.03
0.02 – 0.025
Acres 1 Gallon or
1 Pound Dry Will Treat
64 – 45.7
0.8 – 0.4
4 – 2
4 – 2
8 – 4
64 – 45.7
22 – 13
22 – 13
83
66.7
33.3
33.3
33.3
33.3
40 – 32
Commercially treated seed.
Threshold and Comments
Can be applied on farm or treated commercially.
Commercially treated seed.
Apply as a T-band in a 6- to 8-inch band. Suppression only.
7 oz./1,000 feet of row for any row spacing (minumim 20-inch row spacing).
Use ground equipment with a directed spray at lower third of plant and 20 – 30 gallons of
water per acre.
Ground application only in Mississippi.
Soil insect pests such as WIReWoRMs, seeD CoRn MAGGots, WHIte GRUBs, soUtHeRn CoRn Root-
WoRMs, AnD CUtWoRMs can attack grain sorghum. You can reduce them with cultural practices and by planting into
weed-free fields. Fields recently taken out of pasture or sod production are often infested with white grubs and wireworms. Consider
seed treatments or soil insecticides at planting for fields at risk. Gaucho, Cruiser, and Poncho seed treatments are labeled for
use on grain sorghum. Foliar insecticides are recommended for postemergence cutworm control.
Occasionally FIRe Ants feed on the seed or seedlings shortly after planting. ese problems tend to be more common in reduced
tillage fields, heavy clay soils, and under dry conditions. is is usually a result of poor planting conditions where the furrow
was not completely closed, allowing access to the seed and the germinating plants. Seed treatments provide effective control.
Grain Sorghum 63