2002 Sunflower Survey

Art LameyEmeritus Professor

North Dakota State University

Survey Methods, 1 of 4 1 Field/5,000 Planted Acres Data Recorded on:

Oil/confection Yield and Plant Population Cultural Practices Yield Limiting Factors Weeds, Insects, Diseases, Bird

Damage

Survey Methods, 2 of 4 Samples Taken of Heads from Each

Field: To USDA Insect Lab in Fargo Damage Data on:

Seed Weevil Banded Sunflower Moth Sunflower Moth Brown Spot (Confection Only)

Data Will Be Included in Summary Data

Survey Methods, 3 of 4 Survey Summary Sheet Prepared by

Each Team Summary Sheet e-Mailed to Max

and Art Art Prepared Summary Sheet for

Each State Art Prepared Summary Sheet for All

States and Also SD and ND Districts

Survey Methods, 4 of 4 All Summary Sheets Copied to John

Nowatzki GIS Maps to be Constructed for Each

State Will Post on the Web

Missing Data Data from two W. ND teams not received

State Total and Districts Marked with Asterisk*

Oilseed or Confection

0%

20%

40%

60%

80%

100%

% F

ield

s Surv

eyed

CO KS MN NE ND SD TX

Oil Conf

Yield and Plant Population

0

500

1000

1500

2000

Yie

ld, lb

/A

CO KS MN NE ND SD TX

Plant Population/ 10

Yield Plant Pop

Row Spacing

0%

20%

40%

60%

80%

100%

% S

urv

eyed

Fie

lds

CO KS MN NE ND SD TX

20< (-) 20> (+)

Tillage

0%

20%

40%

60%

80%

100%

% S

urv

eyed

Fie

lds

CO KS MN NE ND SD TX

No Till Minimum Till Conventional

Major Yield Limiting Factor

0102030405060708090

% S

urv

eyed F

ield

s

CO KS MN NE ND SD TX

Drought Population Disease Weeds

Weeds, 1 of 4

0

0.4

0.8

1.2

1.6

2

0-3

Wee

d S

cale

CO KS MN NE ND SD TX

Can Thistle Cocklebur Devils Claw

Weeds, 2 of 4

0

0.4

0.8

1.2

1.6

2

0-3

Wee

d S

cale

CO KS MN NE ND SD TX

Kochia Marshelder Nightshade

Weeds, 3 of 4

0

0.4

0.8

1.2

1.6

2

0-3

Wee

d S

cale

CO KS MN NE ND SD TX

Palmer Amaranth Puncture Vine RR Pigweed Russ Thistle

Weeds, 4 of 4

0

0.4

0.8

1.2

1.6

2

0-3

Wee

d S

cale

CO KS MN NE ND SD TX

Barnyard Grass Green Foxtail Yellow Foxtail Vol Grain

Ground Lodging

0

2

4

6

8

10

12

% G

round L

odgin

g

CO KS MN NE ND SD TX

Diseases

0

5

10

15

20

% D

isease

Inci

dence

CO KS MN NE ND SD TX

Sclerotinia Head Rot Phomopsis Rhizopus Verticillium

Bird Damage

0

1

2

3

4

5

6

7

% B

ird D

am

age

CO KS MN NE SD ND TX

Edge Interior

Midge Damage

0

0.05

0.1

0.15

0.2

0.25

0.3

Dam

age,

0-5

Sca

le

CO KS MN NE ND SD TX

Edge Interior

Heads with Webbing

0

10

20

30

40

50

60

70

% H

eads

Webbed

CO KS MN NE ND ND TX SD

Edge Interior

Spotted SF Stem Weevil

0

10

20

30

40

50

60

70

80

% P

lants

Infe

sted

CO KS MN NE ND SD TX

Edge Interior

Long Horned Beetle

05

1015202530354045

% P

lants

Infe

sted

CO KS MN NE ND SD TX

Edge Interior

Seed Weevil Damage

02468

1012141618

% S

eed D

am

age

CO KS MN NE ND SD TX

Edge Interior

Banded SF Moth Damage

0

0.5

1

1.5

2

2.5

3

% S

eed D

amage

CO KS MN NE ND SD TX

Edge Interior

Sunflower Moth Damage

0

1

2

3

4

5

6

% S

eed D

am

age

CO KS MN NE ND SD TX

Edge Interior

Brown Spot Damage

0123456789

% S

eed D

am

age

CO KS MN NE ND SD TX

Edge Interior

Summary Data Sheet Three Parts

All States SD Crop Reporting Districts

If State Totals Merit Analysis by District ND Crop Reporting Districts

Key to Weed Assessments (Last Page) Key to Yield Limiting Factors (Last

Page)

Survey Supported by a Grant from the

National Sunflower

Association and SBARE