Calculate yield and economic losses due to corn diseases
Results
Year
% Loss
Bushels Lost
$(USD) Loss
$(USD) Loss per Acre
Details
TOTALS
473,885,023
$2,143,804,906
AVERAGE
0.78%
67,697,860
$306,257,844
$6.09
2015
NA
NA
NA
NA
2015 Production Details
State
Acres
Bushels
Dollars
Arkansas
460,000
80,545,000
$330,235,000
Colorado
1,100,000
134,900,000
$499,130,000
Iowa
13,500,000
2,505,600,000
$8,769,600,000
Illinois
11,700,000
2,012,500,000
$7,345,625,000
Indiana
5,650,000
822,000,000
$3,164,700,000
Kansas
4,150,000
580,160,000
$2,175,600,000
Kentucky
1,400,000
225,320,000
$856,216,000
Louisiana
400,000
66,690,000
$266,760,000
Michigan
2,350,000
335,340,000
$1,173,690,000
Minnesota
8,100,000
1,428,800,000
$4,857,920,000
Missouri
3,250,000
437,360,000
$1,596,364,000
Mississippi
510,000
85,750,000
$343,000,000
North Carolina
790,000
82,490,000
$354,707,000
North Dakota
2,750,000
327,680,000
$1,048,576,000
Nebraska
9,400,000
1,692,750,000
$6,093,900,000
New York
1,080,000
84,370,000
$358,573,000
Ohio
3,550,000
498,780,000
$1,895,364,000
Pennsylvania
1,340,000
138,180,000
$525,084,000
South Dakota
5,400,000
799,770,000
$2,599,253,000
Tennessee
780,000
116,800,000
$449,680,000
Texas
2,300,000
265,950,000
$1,103,693,000
Wisconsin
4,000,000
492,000,000
$1,672,800,000
2015 Loss Details
Estimated percentage yield loss due to disease
State
Tar spot
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
2015 Loss Details
Estimated percentage yield loss due to disease
Disease
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
Tar spot
2016
NA
NA
NA
NA
2016 Production Details
State
Acres
Bushels
Dollars
Arkansas
760,000
127,395,000
$471,362,000
Colorado
1,340,000
160,290,000
$569,030,000
Iowa
13,900,000
2,740,500,000
$9,180,675,000
Illinois
11,600,000
2,255,650,000
$7,781,993,000
Indiana
5,600,000
946,310,000
$3,359,401,000
Kansas
5,100,000
698,640,000
$2,235,648,000
Kentucky
1,500,000
222,600,000
$823,620,000
Louisiana
620,000
90,750,000
$335,775,000
Michigan
2,400,000
320,280,000
$1,104,966,000
Minnesota
8,450,000
1,544,000,000
$5,095,200,000
Missouri
3,650,000
570,500,000
$1,911,175,000
Mississippi
750,000
119,520,000
$448,200,000
North Carolina
1,000,000
121,260,000
$491,103,000
North Dakota
3,450,000
516,660,000
$1,627,479,000
Nebraska
9,850,000
1,699,900,000
$5,694,665,000
New York
1,100,000
73,530,000
$286,767,000
Ohio
3,550,000
524,700,000
$1,888,920,000
Pennsylvania
1,400,000
122,550,000
$496,328,000
South Dakota
5,600,000
825,930,000
$2,642,976,000
Tennessee
880,000
125,330,000
$457,455,000
Texas
2,900,000
323,850,000
$1,214,438,000
Wisconsin
4,050,000
573,160,000
$1,891,428,000
2016 Loss Details
Estimated percentage yield loss due to disease
State
Tar spot
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
2016 Loss Details
Estimated percentage yield loss due to disease
Disease
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
Tar spot
2017
NA
NA
NA
NA
2017 Production Details
State
Acres
Bushels
Dollars
Arkansas
620,000
108,885,000
$396,341,000
Colorado
1,460,000
185,900,000
$626,483,000
Delaware
180,000
32,319,000
$129,922,000
Iowa
13,300,000
2,605,800,000
$8,625,198,000
Illinois
11,200,000
2,200,950,000
$7,505,240,000
Indiana
5,350,000
936,000,000
$3,332,160,000
Kansas
5,500,000
686,400,000
$2,251,392,000
Kentucky
1,320,000
217,160,000
$801,320,000
Louisiana
500,000
90,160,000
$335,395,000
Maryland
480,000
72,240,000
$290,405,000
Michigan
2,250,000
300,510,000
$1,039,765,000
Minnesota
8,050,000
1,480,220,000
$4,707,100,000
Missouri
3,400,000
552,500,000
$1,884,025,000
Mississippi
520,000
94,500,000
$347,760,000
North Carolina
890,000
119,280,000
$505,747,000
North Dakota
3,420,000
448,970,000
$1,364,869,000
Nebraska
9,550,000
1,683,300,000
$5,639,055,000
New York
1,000,000
78,085,000
$317,806,000
Ohio
3,400,000
557,550,000
$2,012,756,000
Pennsylvania
1,350,000
148,120,000
$573,224,000
South Dakota
5,700,000
736,600,000
$2,276,094,000
Tennessee
750,000
121,410,000
$431,006,000
Texas
2,450,000
313,600,000
$1,160,320,000
Virginia
500,000
47,600,000
$188,496,000
Wisconsin
3,900,000
509,820,000
$1,682,406,000
2017 Loss Details
Estimated percentage yield loss due to disease
State
Tar spot
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
2017 Loss Details
Estimated percentage yield loss due to disease
Disease
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
Tar spot
2018
1.12%
184,903,503
$658,732,105
$7.66
2018 Production Details
State
Acres
Bushels
Dollars
Arkansas
660,000
116,745,000
$431,957,000
Colorado
1,470,000
156,000,000
$585,000,000
Delaware
170,000
24,070,000
$91,466,000
Iowa
13,200,000
2,508,800,000
$8,780,800,000
Illinois
11,000,000
2,278,500,000
$8,202,600,000
Indiana
5,350,000
982,800,000
$3,538,080,000
Kansas
5,450,000
645,000,000
$2,322,000,000
Kentucky
1,340,000
215,250,000
$817,950,000
Louisiana
460,000
77,850,000
$299,723,000
Maryland
450,000
56,940,000
$216,372,000
Michigan
2,300,000
296,820,000
$1,053,711,000
Minnesota
7,900,000
1,363,180,000
$4,634,812,000
Missouri
3,500,000
466,200,000
$1,678,320,000
Mississippi
480,000
86,025,000
$322,594,000
North Carolina
910,000
93,790,000
$407,987,000
North Dakota
3,150,000
448,290,000
$1,479,357,000
Nebraska
9,600,000
1,787,520,000
$6,345,696,000
New York
1,100,000
102,555,000
$420,476,000
Ohio
3,500,000
617,100,000
$2,252,415,000
Pennsylvania
1,350,000
133,000,000
$538,650,000
South Dakota
5,300,000
777,600,000
$2,566,080,000
Tennessee
740,000
115,920,000
$434,700,000
Texas
2,200,000
189,000,000
$774,900,000
Virginia
485,000
47,450,000
$185,055,000
Wisconsin
3,900,000
545,240,000
$1,908,340,000
2018 Loss Details
Estimated percentage yield loss due to disease
State
Tar spot
AL
AR
0.000000000000000
AZ
CA
CO
0.000000000000000
DE
0.000000000000000
FL
GA
IA
1.000000000000000
ID
IL
3.000000000000000
IN
3.000000000000000
KS
0.000000000000000
KY
0.000000000000000
LA
0.000000000000000
MD
0.000000000000000
MI
4.000000000000000
MN
0.000000000000000
MO
0.000000000000000
MS
0.000000000000000
MT
NC
0.000000000000000
ND
0.000000000000000
NE
0.000000000000000
NM
NY
0.000000000000000
OH
0.000000000000000
OK
PA
0.000000000000000
SC
SD
0.000000000000000
TN
0.000000000000000
TX
0.000000000000000
VA
0.000000000000000
WI
5.000000000000000
2018 Loss Details
Estimated percentage yield loss due to disease
Disease
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
Tar spot
0.000000000000000
0.000000000000000
0.000000000000000
1.000000000000000
3.000000000000000
3.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
4.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
5.000000000000000
2019
0.30%
45,367,223
$181,593,818
$2.10
2019 Production Details
State
Acres
Bushels
Dollars
Alabama
320,000
44,835,000
$188,307,000
Arkansas
770,000
126,875,000
$494,813,000
Colorado
1,550,000
159,900,000
$631,605,000
Delaware
185,000
28,980,000
$124,614,000
Iowa
13,500,000
2,583,900,000
$9,818,820,000
Illinois
10,500,000
1,846,200,000
$7,107,870,000
Indiana
5,000,000
814,580,000
$3,339,778,000
Kansas
6,400,000
800,660,000
$2,962,442,000
Kentucky
1,550,000
245,050,000
$1,004,705,000
Louisiana
570,000
89,925,000
$355,204,000
Maryland
510,000
74,060,000
$318,458,000
Michigan
2,000,000
239,890,000
$959,560,000
Minnesota
7,800,000
1,263,240,000
$4,610,826,000
Missouri
3,200,000
463,450,000
$1,807,455,000
Mississippi
660,000
107,880,000
$431,520,000
North Carolina
990,000
103,230,000
$459,374,000
North Dakota
3,500,000
455,430,000
$1,616,777,000
Nebraska
10,100,000
1,785,420,000
$6,784,596,000
New York
1,020,000
86,110,000
$367,690,000
Ohio
2,800,000
421,480,000
$1,770,216,000
Pennsylvania
1,450,000
162,180,000
$713,592,000
South Dakota
4,350,000
566,950,000
$2,097,715,000
Tennessee
970,000
161,070,000
$636,227,000
Texas
2,500,000
285,950,000
$1,229,585,000
Virginia
540,000
54,720,000
$227,088,000
Wisconsin
3,800,000
450,240,000
$1,665,888,000
2019 Loss Details
Estimated percentage yield loss due to disease
State
Tar spot
AL
0.000000000000000
AR
0.000000000000000
AZ
CA
CO
0.000000000000000
DE
0.000000000000000
FL
GA
IA
0.001000000000000
ID
IL
0.500000000000000
IN
2.000000000000000
KS
0.000000000000000
KY
0.000000000000000
LA
0.000000000000000
MD
0.000000000000000
MI
5.000000000000000
MN
0.001000000000000
MO
0.000000000000000
MS
0.000000000000000
MT
NC
0.000000000000000
ND
0.000000000000000
NE
0.000000000000000
NM
NY
0.000000000000000
OH
0.100000000000000
OK
PA
0.000000000000000
SC
SD
0.000000000000000
TN
0.000000000000000
TX
0.000000000000000
VA
0.000000000000000
WI
0.250000000000000
2019 Loss Details
Estimated percentage yield loss due to disease
Disease
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
Tar spot
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.001000000000000
0.500000000000000
2.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
5.000000000000000
0.001000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.100000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.250000000000000
2020
0.09%
12,302,731
$56,836,694
$0.64
2020 Production Details
State
Acres
Bushels
Dollars
Alabama
330,000
50,560,000
$259,878,000
Arkansas
620,000
111,320,000
$499,827,000
Colorado
1,420,000
122,960,000
$568,075,000
Delaware
180,000
28,160,000
$157,696,000
Georgia
420,000
70,200,000
$356,616,000
Iowa
13,600,000
2,283,300,000
$10,594,512,000
Illinois
11,300,000
2,120,100,000
$9,455,646,000
Indiana
5,400,000
981,750,000
$4,565,138,000
Kansas
6,100,000
766,480,000
$3,334,188,000
Kentucky
1,470,000
250,240,000
$1,131,085,000
Louisiana
500,000
87,785,000
$328,316,000
Maryland
480,000
66,650,000
$373,240,000
Michigan
2,350,000
304,470,000
$1,437,098,000
Minnesota
8,000,000
1,434,410,000
$6,483,533,000
Missouri
3,450,000
560,880,000
$2,574,439,000
Mississippi
510,000
88,200,000
$355,446,000
North Carolina
990,000
106,220,000
$499,234,000
North Dakota
1,950,000
247,420,000
$1,098,545,000
Nebraska
10,200,000
1,780,200,000
$7,957,494,000
New York
1,030,000
78,500,000
$478,850,000
Ohio
3,550,000
564,300,000
$2,646,567,000
Pennsylvania
1,500,000
138,000,000
$760,380,000
South Carolina
390,000
48,840,000
$212,942,000
South Dakota
4,900,000
720,900,000
$3,150,333,000
Tennessee
860,000
138,550,000
$651,185,000
Texas
2,250,000
231,680,000
$1,047,194,000
Virginia
560,000
51,240,000
$261,324,000
Wisconsin
3,950,000
506,890,000
$2,250,592,000
2020 Loss Details
Estimated percentage yield loss due to disease
State
Tar spot
AL
0.000000000000000
AR
0.000000000000000
AZ
CA
CO
0.000000000000000
DE
0.000000000000000
FL
GA
0.000000000000000
IA
0.001000000000000
ID
IL
0.050000000000000
IN
0.800000000000000
KS
0.000000000000000
KY
0.000000000000000
LA
0.000000000000000
MD
0.000000000000000
MI
0.500000000000000
MN
0.001000000000000
MO
0.000000000000000
MS
0.000000000000000
MT
NC
0.000000000000000
ND
0.000000000000000
NE
0.000000000000000
NM
NY
0.000000000000000
OH
0.025000000000000
OK
PA
0.000000000000000
SC
0.000000000000000
SD
0.000000000000000
TN
0.000000000000000
TX
0.000000000000000
VA
0.000000000000000
WI
0.250000000000000
2020 Loss Details
Estimated percentage yield loss due to disease
Disease
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
Tar spot
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.001000000000000
0.050000000000000
0.800000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.500000000000000
0.001000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.025000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.250000000000000
2021
1.44%
231,311,565
$1,246,642,289
$13.69
2021 Production Details
State
Acres
Bushels
Dollars
Alabama
355,000
56,235,000
$331,787,000
Arkansas
850,000
152,720,000
$824,688,000
Colorado
1,380,000
148,350,000
$845,595,000
Delaware
175,000
31,648,000
$188,306,000
Georgia
480,000
80,990,000
$469,742,000
Iowa
12,900,000
2,552,250,000
$13,909,763,000
Illinois
11,000,000
2,191,700,000
$11,835,180,000
Indiana
5,400,000
1,027,650,000
$5,600,693,000
Kansas
5,700,000
750,600,000
$4,165,830,000
Kentucky
1,550,000
276,480,000
$1,479,168,000
Louisiana
580,000
103,395,000
$537,654,000
Maryland
470,000
74,375,000
$442,531,000
Michigan
2,350,000
346,260,000
$1,852,491,000
Minnesota
8,400,000
1,395,520,000
$7,466,032,000
Missouri
3,600,000
548,800,000
$3,018,400,000
Mississippi
730,000
126,700,000
$665,175,000
North Carolina
960,000
134,845,000
$802,328,000
North Dakota
4,100,000
381,150,000
$2,020,095,000
Nebraska
9,900,000
1,854,640,000
$10,015,056,000
New York
1,050,000
97,695,000
$635,018,000
Ohio
3,550,000
644,620,000
$3,513,179,000
Pennsylvania
1,330,000
167,310,000
$1,012,226,000
South Carolina
400,000
52,820,000
$311,638,000
South Dakota
6,150,000
739,800,000
$4,142,880,000
Tennessee
1,020,000
163,200,000
$889,440,000
Texas
2,150,000
236,800,000
$1,420,800,000
Virginia
520,000
59,200,000
$337,440,000
Wisconsin
4,000,000
547,200,000
$2,845,440,000
2021 Loss Details
Estimated percentage yield loss due to disease
State
Tar spot
AL
0.000000000000000
AR
0.000000000000000
AZ
CA
CO
0.000000000000000
DE
0.000000000000000
FL
GA
0.010000000000000
IA
1.000000000000000
ID
IL
3.500000000000000
IN
4.000000000000000
KS
0.000000000000000
KY
0.000000000000000
LA
0.000000000000000
MD
0.000000000000000
MI
6.000000000000000
MN
0.001000000000000
MO
0.500000000000000
MS
0.000000000000000
MT
NC
0.000000000000000
ND
0.000000000000000
NE
0.000000000000000
NM
NY
0.000000000000000
OH
2.000000000000000
OK
PA
0.000000000000000
SC
0.000000000000000
SD
0.000000000000000
TN
0.000000000000000
TX
0.000000000000000
VA
0.000000000000000
WI
5.000000000000000
2021 Loss Details
Estimated percentage yield loss due to disease
Disease
AL
AR
AZ
CA
CO
DE
FL
GA
IA
ID
IL
IN
KS
KY
LA
MD
MI
MN
MO
MS
MT
NC
ND
NE
NM
NY
OH
OK
PA
SC
SD
TN
TX
VA
WI
Tar spot
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.010000000000000
1.000000000000000
3.500000000000000
4.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
6.000000000000000
0.001000000000000
0.500000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
2.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
0.000000000000000
5.000000000000000
Losses Map
Year:
Loss Type
0%+
0%
80,000,000+
0
$400,000,000+
$0
$40+
$0
Corn Diseases
Bushels
Query multiple types of production and estimated yield loss data by timeframe, disease, and geographic area*
Select desired start year and end year. For a single year of data choose the same year for both start and end.
Select a disease category, which will autofill the diseases.
Select one or multiple diseases.
Further define geographic area by country, region, or select one or multiple states.
Click on Search and results will display.
Further details are available by clicking on Production and Losses within results.
If specific diseases or states are not selected, the output will include values for all diseases and states present in the selection boxes.
NA means data not collected for that year and geographic location.
*Not all data categories are available for all locations and all years, and disease categories changed slightly as data collection progressed. Disease loss data was traditionally presented separately for the Northern U.S and Southern U.S., categories which differ from the states within regional IPM center groupings.
These data are expert estimates only.
Data is currently available from 2012 onwards.
Mycotoxin contamination values are currently unavailable.
Corn loss data are not available for Alabama from 2012-2018, Georgia from 2012-2019, Missouri in 2013, Oklahoma from 2012-2022, South Carolina from 2012-2019, and Virginia from 2012-2016.
Categories for Curvularia leaf spot and crown rot were added in 2022; however, detailed notes allowing for the separation of crown rot and stalk rot were not obtained in all states.
Inflation has NOT been accounted for in reported USD values.
How to cite information from this resource:
Crop Protection Network. 2025. Estimates of crop yield losses due to diseases and invertebrate pests: an online tool. Https://loss.cropprotectionnetwork.org/. Doi.org/10.31274/cpn-20191121-0
For more information about disease loss data, please see the About page.
Contributors 2012 to 2024
Daisy Ahumada, North Carolina State University; Tom Allen, Mississippi State University; Nolan Anderson, Texas A&M University; Gary Bergstrom, Cornell University; Mandy Bish, University of Missouri; Kaitlyn Bissonnette, University of Missouri; Bruce Bosley, Colorado State University; Carl Bradley, University of Kentucky; Kyle Broderick, University of Nebraska; Emmanuel Byamukama, South Dakota State University; Boris Camiletti, University of Illinois Urbana-Champaign; Marty Chilvers, Michigan State University; Alyssa Collins, Penn State University; Maira Rodrigues Duffeck, Oklahoma State University; Paul Esker, Penn State University; Travis Faske, University of Arkansas; Andrew Friskop, North Dakota State University; Austin Hagan, Auburn University; Chelsea Harbach, University of Illinois; Ron Heiniger, North Carolina State University; Clayton Hollier, Louisiana State University; Tom Isakeit, Texas A&M University; Tamra Jackson-Ziems, University of Nebraska; Doug Jardine, Kansas State University; Heather Kelly, University of Tennessee; Bob Kemerait, University of Georgia; Shelly Kerns,Louisiana State University; Kasia Kinzer, North Dakota State University; Nathan Kleczewski, University of Illinois; Alyssa Koehler, University of Delaware; Steve Koenning, North Carolina State University; David Langston, Virginia Tech; Dean Malvick, University of Minnesota; Marcia McMullen, North Dakota State University; Hillary Mehl, Virginia Tech; Ron Meyer, Colorado State University; Santiago Mideros, University of Illinois; Michelle Mostrom, North Dakota State University; Daren Mueller, Iowa State University; John Mueller, Clemson University; Rodrigo Onofre, Kansas State University; Pierce Paul, Ohio State University; Angie Peltier, University of Illinois; Michael Plumblee, Clemson University; Trey Price, Louisiana State University; Alison Robertson, Iowa State University; Greg Roth, Penn State University; Madalyn Shires, South Dakota State University; Ed Sikora, Auburn University; Damon Smith, University of Wisconsin-Madison; Connie Tande, South Carolina State University; Darcy Telenko, Purdue University; Albert Tenuta, Ontario Ministry of Agriculture, Food and Rural Affairs; Lindsey Thiessen, North Carolina State University; Paul Vincelli, University of Kentucky; Bill Wiebold, University of Missouri; Kiersten Wise, University of Kentucky; and Yuan Zeng, University of Virginia.