Extension Circular 72-1509 is an insect control guide for corn and sorghum

Kieth, D. L.

Roselle, R. E.

English

DigitalCommons@University of Nebraska

University of Nebraska - LincolnDigitalCommons@University of Nebraska - LincolnHistorical Materials from University of Nebraska-Lincoln Extension Extension1972EC72-1509 Insect Control Guide for Corn andSorghumR. E. RoselleUniversity of Nebraska-Lincoln, rroselle1@unl.eduD. L. KiethFollow this and additional works at: http://digitalcommons.unl.edu/extensionhistThis Article is brought to you for free and open access by the Extension at DigitalCommons@University of Nebraska - Lincoln. It has been accepted forinclusion in Historical Materials from University of Nebraska-Lincoln Extension by an authorized administrator of DigitalCommons@University ofNebraska - Lincoln.Roselle, R. E. and Kieth, D. L., "EC72-1509 Insect Control Guide for Corn and Sorghum" (1972). Historical Materials from Universityof Nebraska-Lincoln Extension. 4178.http://digitalcommons.unl.edu/extensionhist/4178E.C. 72 -1509 INSECT CONTROL GUIDE FOR CORN AND SORGH~~~~ R. E. Ros:::~S: L. Kei t h ~~~ '0 ~~'!.\,\)\-\\)~ Agricul tural Extension Entomologists ~~ ~~ ~ T T ~\ \\,~X-Insect control sugges tions in this guide are based on ~rsi ' of Nebraska r esearch results , U.S.D.A. recommenda tions , and label registrations. Insect con-trols are not perfect. The suggestions are designed to benefi t Nebraska farmers when they need con t rol programs. In some instances trade names have been used. No endorsement is impl ied by the Nebraska Cooperative Extens i on Service a nd no di scrimina tion is intended . TOXICITY OF INSECTICIDES All insecticides a re poisonous and must be used with caut ion . They s hould always be stored in the original container out of t he reach of children , unin-formed adu lts , and l ivestock . Empty containers and lef t- over mater i als mus t be disposed of by bury ing at least 18 inches in the soil away from water supplies . It is very impor tan t tha t the labels of every insecticide be s t udied until t hey are understood. Safety precaut ions and use instructions are on all labe ls . Fol -low these comple t ely to avo i d acc i dental poisoning or death, and t o prevent il-legal residues in crops . The highly toxic insecticides in this publication are ethy l parathion, methyl parathion, Phosdrin, EPN, Di-Sys ton, Thime t , Dyfonate, Dasanit, Systox, and Prophos. Skull and cros s bones and the word Po i son in red appear on the label of highly toxic materials. These chemicals are not recommended for farmer application as spr a ys. They must be applied only by well-trained, re sponsible and i nsured commercial operators. However, wi th proper precautions, farmers should be able t o use granular formulation s for soil application to control corn rootworms. Moderately highly t oxic insectic ides are dieldrin, toxaphene, Ehion, Trithion , aldrin , heptachlor, and lindane. They must be used with special care . Fami l i arize yourself with a ll the warnings given on the labels. Modera tely toxic insect icides a re diazinon, Sevin (carbaryl), Dyl ox, Bux-Ten and chlordane. When using t hese , avoid all unneces sary exposure to the skin , lungs, and digestive system. Note the label cautions. Furada n in highly toxic orally, moderately toxic dermally . Regi s trations of some chemicals lis t ed in this publication are subjec t to review and wi thdrawal in 1972 . Visit with your county agricul tural agent before making the f inal dec i s ion of which insecticide to use. Revised February 1972, 5,000 Extension Service, University of Nebraska College of Agriculture Cooperat ing with the U. S. Department of Agriculture and the College of Home Economics E. F. Frolik, Dea n J. L. Adams, Director e CORN ROOTWORM LARVAE PLANTING TIME Bux lOG Dasanit 15G Diazinon 14G Dyfonate lOG Dyfonate 20G Furadan lOG Prophos 15G (Jolt) Prophos lOG (Mocap) Thimet 15G CULTIVATION TIME Bux lOG Dasanit l5G Dyfonate lOG Dyfonate 20G Diazinon 14G Di-Syston 15G Furadan lOG Thimet 15G CUTWORMS WIREWORMS AND CUTWORMS AMOUNT ACTIVE INGREDIENT PER ACRE ( 40" rows) 1 Lb. 1 Lb. 1 Lb. 1 Lb. 1 Lb. 0.8 Lb. 1 Lb. 1 Lb. 1 Lb. 1 Lb. 1 Lb. 1 Lb. 1 Lb. 1 Lb. 1 Lb. 0.8 Lb. 1 Lb. MATERIAL Aldrin Heptachlor Aldrin EC Heptachlor EC e SOIL INSECTS AMOUNT FORMULATION PER 1000 LINEAR FT. 11.5 ounces 8.0 ounces 8.5 ounces 11.5 ounces 6.0 ounces 10.5 ounces 8.0 ounces 11.5 ounces 8.0 ounces 11.5 ounces 8.0 ounces 11.5 ounces 6.0 ounces 8.5 ounces 8.0 ounces 10.5 ounces 8.0 ounces AMOUNT ACTIVE INGREDIENT PER ACRE 2 Lbs. 2 Lbs. 1 Lb. 1 Lb. e REMARKS Apply as a band 6 inches wide over rows and work 1/2 to 1 inch into soil. Do not place Prophos, Bux, or Thimet in contact with seed. Diazinon suggested for use only on corn planted after May 18. Diazinon, Dyfonate, Di-Syston, Furadan, and Thimet can be applied over whorls. Cover granules that fall to the soil by cultivation or hilling. Bux and Dasanit to be applied at base of plants and covered with soil. RESTRICTIONS Broadcast 2 to 3 weeks before planting or before replanting and disk 3 or 4 inches into soil. DO NOT USE on fields that will be planted to root crops or legumes following corn. DO NOT USE ON DAIRY FARMS Row spray over seed furrow at planting. Cover with soil. DO NOT USE ON DIARY FARMS SEED INSECTS - 2 -Seed treatment with dieldrin , lindane, aldrin, heptachlor o r diazinon . INSECTS DAMAGING CORN ABOVE GROUND MATERIAL AMOUNT ACTIVE I NGREDIENT PER ACRE CORN ROOTWORM ADULTS Carbaryl (Sevin ) Et hyl parat hio n Methyl p a r athion EPN 1 Lb . 4 Oz. 4 Oz. 4 Oz. 1 Lb. 8 Oz . CHINCH BUGS Malath i on Malathion ULV Toxaphene 2 Lbs . EUROPEAN CORN BORERS Diazinon 14G EPN 2G 1 Lb . 0.3 Lb. 1 Lb. 2 Lbs . 2 Lbs. GRASSHOPPERS e Thimet 15G Sevin lOG Toxaphene lOG Sevin 80WP 2 Lbs . EPN 4 Lbs . /gal . 0. 5 Lb. (commercial application) Diazinon Ag 500 1 Lb. Toxaphene 2 Lbs. Sevin 80WP 2 • • Follow package directions. Never mix treated seed with fee d g r ains . REMARKS Ethyl and methyl parathion, and EPN a re s uggested for c ommerc ial application only. 1 4 day h a r v es t restriction on par athion a n d EPN. 5 day h arvest restriction for malathion . Barrier strips. Do not feed treated forage. 10 days 14 days 3 0 days . First brood only. No restrictions Do not feed toxaphene treated silage to animals being finished for slaughter. Do not graze meat anima l s within 4 weeks of slaughter . DO NOT USE ON DAIRY FARMS. Use n o zzles over whorls for first brood and 4 nozzles per row for second brood so leaf axils and ear zones are thoroughly covered with spray. Harvest limitations same as for granules . F i eld margins only. treated forage. No restri ction s. Do not f e ed e " e WESTERN BEAN CUTWORM SPIDER MITES ARMYWORMS AND FALL ARMYWORMS ARMYWORMS AND FALL ARMYWORMS CORN LEAF APHIDS GREENBUGS - 3 --Malathion EC 1 Lb. Chlordane EC 1 Lb. Parathion EC 8 Oz. Malathion ULV 8 Oz. Carbaryl (Sevin) WP 2 Lbs. Parathion EC 12 Oz. Thimet lSG 1 Lb. Di-Syston lSG 1 Lb. Ethion EC 1 Lb. Trithion EC 1 Lb. Sevin WP 1.6 Lbs. Malathion EC 1 1/4 Lbs. Trichlorfon (Dylox) 1 Lb. SORGHUM INSECTS MATERIAL Carbaryl (Sevin) Toxaphene Malathion Diazinon Malathion EC Diazinon Ag 500 AMOUNT ACTIVE INGREDIENT PER ACRE 2 Lbs. 1 Lb. 1 Lb. 0.5 Lb. 1 Lb. 0.5 Lb. Ethyl parathion EC . 5 Lb. Di-Syston EC .5 Lb. e 5 days. Field margins only. Do not feed treated forage. Commercial application only. 14 days. Commercial application. 5 days. No restrictions. 12 days. Commercial application only. 30 days. Commercial application .. 40 days. Commercial application. 50 days. One application. Do not feed treated forage. 21 days. One application. No restrictions. 5 days. 21 days. One application. REMARKS 21 days for grain. 28 days. Do not feed treated forage to animals being finished for slaughter. DO NOT USE ON DAIRY FARMS. 5 days. Only when infestation is severe at the time head is in the boot and later. 7 days. 5 days. 7 days. 1 2 days . 28 days. One time Commercial application. Commercial application . p er season. • SEED INSECTS '--Phosdrin Systox Thimet 15G Di-Syston 15G - 4 -3 Oz. 4 Oz. 1 Lb. 1 Lb. Seed treatment in planter box with aldrin, heptachlor, lindane, diazinon or dieldrin. ..__.. 3 days. Commercial application. 35 days. Commercial application. At planting OR over rows post emergence. Do not place in con-tact with seed. Use one time per season and not within 30 days of harvest. At planting OR over rows after plants emerge. Do not place in contact with seed. Use one time per season, and not within 30 days of harvest. Follow package directions. Never mix treated seed with feed grains. 

EC72-1509  Insect Control Guide for Corn and Sorghum

UNL | Libraries

University of Nebraska - Lincoln
DigitalCommons@University of Nebraska - Lincoln
Historical Materials from University of Nebraska-
Lincoln Extension Extension
1972
EC72-1509 Insect Control Guide for Corn and
Sorghum
R. E. Roselle
University of Nebraska-Lincoln, rroselle1@unl.edu
D. L. Kieth
Follow this and additional works at: http://digitalcommons.unl.edu/extensionhist
This Article is brought to you for free and open access by the Extension at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for
inclusion in Historical Materials from University of Nebraska-Lincoln Extension by an authorized administrator of DigitalCommons@University of
Nebraska - Lincoln.
Roselle, R. E. and Kieth, D. L., "EC72-1509 Insect Control Guide for Corn and Sorghum" (1972). Historical Materials from University
of Nebraska-Lincoln Extension. 4178.
http://digitalcommons.unl.edu/extensionhist/4178
E.C. 72 -1509 
INSECT CONTROL GUIDE FOR CORN AND SORGH~~~~ 
R. E. Ros:::~S: L. Kei t h ~~~ '0 ~~'!.\,\)\-\\)~ 
Agricul tural Extension Entomologists ~~ ~~ ~ 
T T ~\ \\,~X-Insect control sugges tions in this guide are based on ~rsi ' of Nebraska 
r esearch results , U.S.D.A. recommenda tions , and label registrations. Insect con-
trols are not perfect. The suggestions are designed to benefi t Nebraska farmers 
when they need con t rol programs. 
In some instances trade names have been used. No endorsement is impl ied by 
the Nebraska Cooperative Extens i on Service a nd no di scrimina tion is intended . 
TOXICITY OF INSECTICIDES 
All insecticides a re poisonous and must be used with caut ion . They s hould 
always be stored in the original container out of t he reach of children , unin-
formed adu lts , and l ivestock . Empty containers and lef t- over mater i als mus t be 
disposed of by bury ing at least 18 inches in the soil away from water supplies . 
It is very impor tan t tha t the labels of every insecticide be s t udied until t hey 
are understood. Safety precaut ions and use instructions are on all labe ls . Fol -
low these comple t ely to avo i d acc i dental poisoning or death, and t o prevent il-
legal residues in crops . 
The highly toxic insecticides in this publication are ethy l parathion, methyl 
parathion, Phosdrin, EPN, Di-Sys ton, Thime t , Dyfonate, Dasanit, Systox, and Prophos. 
Skull and cros s bones and the word Po i son in red appear on the label of highly toxic 
materials. These chemicals are not recommended for farmer application as spr a ys. 
They must be applied only by well-trained, re sponsible and i nsured commercial 
operators. However, wi th proper precautions, farmers should be able t o use granular 
formulation s for soil application to control corn rootworms. 
Moderately highly t oxic insectic ides are dieldrin, toxaphene, Ehion, Trithion , 
aldrin , heptachlor, and lindane. They must be used with special care . Fami l i arize 
yourself with a ll the warnings given on the labels. 
Modera tely toxic insect icides a re diazinon, Sevin (carbaryl), Dyl ox, Bux-Ten 
and chlordane. When using t hese , avoid all unneces sary exposure to the skin , lungs, 
and digestive system. Note the label cautions. 
Furada n in highly toxic orally, moderately toxic dermally . 
Regi s trations of some chemicals lis t ed in this publication are subjec t to 
review and wi thdrawal in 1972 . Visit with your county agricul tural agent before 
making the f inal dec i s ion of which insecticide to use. 
Revised February 1972, 5,000 
Extension Service, University of Nebraska College of Agriculture Cooperat ing with the 
U. S. Department of Agriculture and the College of Home Economics 
E. F. Frolik, Dea n J. L. Adams, Director 
e 
CORN ROOTWORM LARVAE 
PLANTING TIME 
Bux lOG 
Dasanit 15G 
Diazinon 14G 
Dyfonate lOG 
Dyfonate 20G 
Furadan lOG 
Prophos 15G (Jolt) 
Prophos lOG (Mocap) 
Thimet 15G 
CULTIVATION TIME 
Bux lOG 
Dasanit l5G 
Dyfonate lOG 
Dyfonate 20G 
Diazinon 14G 
Di-Syston 15G 
Furadan lOG 
Thimet 15G 
CUTWORMS 
WIREWORMS AND 
CUTWORMS 
AMOUNT ACTIVE 
INGREDIENT PER 
ACRE ( 40" rows) 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
0.8 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
1 Lb. 
0.8 Lb. 
1 Lb. 
MATERIAL 
Aldrin 
Heptachlor 
Aldrin EC 
Heptachlor EC 
e 
SOIL INSECTS 
AMOUNT FORMULATION 
PER 1000 LINEAR FT. 
11.5 ounces 
8.0 ounces 
8.5 ounces 
11.5 ounces 
6.0 ounces 
10.5 ounces 
8.0 ounces 
11.5 ounces 
8.0 ounces 
11.5 ounces 
8.0 ounces 
11.5 ounces 
6.0 ounces 
8.5 ounces 
8.0 ounces 
10.5 ounces 
8.0 ounces 
AMOUNT ACTIVE 
INGREDIENT PER ACRE 
2 Lbs. 
2 Lbs. 
1 Lb. 
1 Lb. 
e 
REMARKS 
Apply as a band 6 inches wide 
over rows and work 1/2 to 1 inch 
into soil. Do not place Prophos, 
Bux, or Thimet in contact with 
seed. Diazinon suggested for 
use only on corn planted after 
May 18. 
Diazinon, Dyfonate, Di-Syston, 
Furadan, and Thimet can be applied 
over whorls. Cover granules that 
fall to the soil by cultivation 
or hilling. 
Bux and Dasanit to be applied at 
base of plants and covered with 
soil. 
RESTRICTIONS 
Broadcast 2 to 3 weeks before 
planting or before replanting 
and disk 3 or 4 inches into soil. 
DO NOT USE on fields that will be 
planted to root crops or legumes 
following corn. DO NOT USE ON 
DAIRY FARMS 
Row spray over seed furrow at 
planting. Cover with soil. DO 
NOT USE ON DIARY FARMS 
SEED INSECTS 
- 2 -
Seed treatment with dieldrin , 
lindane, aldrin, heptachlor o r 
diazinon . 
INSECTS DAMAGING CORN ABOVE GROUND 
MATERIAL AMOUNT ACTIVE 
I NGREDIENT PER ACRE 
CORN ROOTWORM ADULTS Carbaryl (Sevin ) 
Et hyl parat hio n 
Methyl p a r athion 
EPN 
1 Lb . 
4 Oz. 
4 Oz. 
4 Oz. 
1 Lb. 
8 Oz . 
CHINCH BUGS 
Malath i on 
Malathion ULV 
Toxaphene 2 Lbs . 
EUROPEAN CORN BORERS Diazinon 14G 
EPN 2G 
1 Lb . 
0.3 Lb. 
1 Lb. 
2 Lbs . 
2 Lbs. 
GRASSHOPPERS 
e 
Thimet 15G 
Sevin lOG 
Toxaphene lOG 
Sevin 80WP 2 Lbs . 
EPN 4 Lbs . /gal . 0. 5 Lb. 
(commercial application) 
Diazinon Ag 500 1 Lb. 
Toxaphene 2 Lbs. 
Sevin 80WP 2 • • 
Follow package directions. 
Never mix treated seed with 
fee d g r ains . 
REMARKS 
Ethyl and methyl parathion, and 
EPN a re s uggested for c ommerc ial 
application only. 1 4 day h a r v es t 
restriction on par athion a n d EPN. 
5 day h arvest restriction for 
malathion . 
Barrier strips. Do not feed 
treated forage. 
10 days 
14 days 
3 0 days . First brood only. 
No restrictions 
Do not feed toxaphene treated 
silage to animals being finished 
for slaughter. Do not graze meat 
anima l s within 4 weeks of 
slaughter . DO NOT USE ON DAIRY 
FARMS. 
Use n o zzles over whorls for first 
brood and 4 nozzles per row for 
second brood so leaf axils and 
ear zones are thoroughly covered 
with spray. Harvest limitations 
same as for granules . 
F i eld margins only. 
treated forage. 
No restri ction s. 
Do not f e ed 
e 
" 
e 
WESTERN BEAN CUTWORM 
SPIDER MITES 
ARMYWORMS AND FALL 
ARMYWORMS 
ARMYWORMS AND FALL 
ARMYWORMS 
CORN LEAF APHIDS 
GREENBUGS 
- 3 --
Malathion EC 1 Lb. 
Chlordane EC 1 Lb. 
Parathion EC 8 Oz. 
Malathion ULV 8 Oz. 
Carbaryl (Sevin) WP 2 Lbs. 
Parathion EC 12 Oz. 
Thimet lSG 1 Lb. 
Di-Syston lSG 1 Lb. 
Ethion EC 1 Lb. 
Trithion EC 1 Lb. 
Sevin WP 1.6 Lbs. 
Malathion EC 1 1/4 Lbs. 
Trichlorfon (Dylox) 1 Lb. 
SORGHUM INSECTS 
MATERIAL 
Carbaryl (Sevin) 
Toxaphene 
Malathion 
Diazinon 
Malathion EC 
Diazinon Ag 500 
AMOUNT ACTIVE 
INGREDIENT PER ACRE 
2 Lbs. 
1 Lb. 
1 Lb. 
0.5 Lb. 
1 Lb. 
0.5 Lb. 
Ethyl parathion EC . 5 Lb. 
Di-Syston EC .5 Lb. 
e 
5 days. 
Field margins only. Do not feed 
treated forage. 
Commercial application only. 
14 days. 
Commercial application. 5 days. 
No restrictions. 
12 days. Commercial application 
only. 
30 days. Commercial application .. 
40 days. Commercial application. 
50 days. One application. Do not 
feed treated forage. 
21 days. One application. 
No restrictions. 
5 days. 
21 days. One application. 
REMARKS 
21 days for grain. 
28 days. Do not feed treated 
forage to animals being finished 
for slaughter. DO NOT USE ON 
DAIRY FARMS. 
5 days. Only when infestation is 
severe at the time head is in the 
boot and later. 
7 days. 
5 days. 
7 days. 
1 2 days . 
28 days. 
One time 
Commercial application. 
Commercial application . 
p er season. 
• 
SEED INSECTS 
'--
Phosdrin 
Systox 
Thimet 15G 
Di-Syston 15G 
- 4 -
3 Oz. 
4 Oz. 
1 Lb. 
1 Lb. 
Seed treatment in planter box 
with aldrin, heptachlor, lindane, 
diazinon or dieldrin. 
..__.. 
3 days. Commercial application. 
35 days. Commercial application. 
At planting OR over rows post 
emergence. Do not place in con-
tact with seed. Use one time 
per season and not within 30 
days of harvest. 
At planting OR over rows after 
plants emerge. Do not place in 
contact with seed. Use one time 
per season, and not within 30 days 
of harvest. 
Follow package directions. Never 
mix treated seed with feed grains. 


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EC72-1509 Insect Control Guide for Corn and Sorghum

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