Elements of IPM for
Processing Sweet Corn in NY State

Insects

Diseases

Weeds

European corn borer

common rust

broadleaves

corn earworm

smut

annual grasses

fall armyworm

northern corn leaf blight

perennials

corn flea beetle

Stewart’s wilt

corn leaf aphid

anthracnose

western corn rootworm

maize dwarf mosaic

seed corn maggot

seed rots

cutworms

barley yellow dwarf virus

common armyworm

sap beetles

A. Site Preparation

Acreage Goal

Points

1) Review weed map/list of fields to choose appropriate weed control strategies. See the Weed Assessment List available for use in satisfying this element.

50%

10

2 Crop Rotation.

a) Plant sweet corn only in fields where sweet or field corn have not been grown in the previous year to avoid anthracnose, smut, northern corn leaf blight.

75%

5

b) Plant sweet corn only in fields where sweet or field corn have not been grown in the previous year to avoid corn root worm

OR if rotation is not possible, scout late season fields (previous year) for presence of CRW adults and only apply soil insecticides if over threshold.

75%

5

3) Soil test at least once every 3 years. Maintain records. Fertilize according to test results. Consider fertility contribution from cover crop, manure and other inputs.

100%

5

4) Test soil using PSNT for Nitrogen sidedress decisions

1%

5

5) Apply supplemental N based on PSNT

1%

5

B. Planting

1) Use tolerant or resistant varieties whenever possible for controlling maize dwarf mosaic, common rust, smut, barley yellow dwarf, and Stewart's wilt.

50%

10

2) Seed treatments. Use fungicide and insecticide seed treatments for control of root, seed rots, and Stewart’s wilt on susceptible varieties.

100%

10

3) Test the use of banded herbicide applications and cultivation in order to reduce herbicide use.

1%

3

C. Pest Monitoring and Forecasting

1) Scout as recommended for European corn borer, fall armyworm, corn earworm, flea beetles, and common rust.

100%

10

2) Update weed map/list of the field when crop is no taller than 6 inches for use in evaluating the current year's weed control and for use in determining if a post emergent treatment is needed. See the Weed Assessment List available for use in satisfying this element.

50%

10

D. Pest Management

1) Use recommended action thresholds for making decisions about applying pesticides for insects and diseases of importance.

90%

10

2) Choose labeled pesticides that have the least environmental impact. Choose pesticides that preserve natural enemies.

35%

10

3) Cultivate or use a post emergent treatment based on information obtained in the weed map/list update. See the Weed Assessment List available for use in satisfying this element.

90%

10

4) Keep records of pest densities, biological control techniques used, cultural procedures, and pesticide applications.

100%

10

E. POST HARVEST

1) Make (or update if one has been made for this field previously) a weed map/list of the field for use in planning for next year. See the Weed Assessment List available for use in satisfying this element.

50%

10

2) Establish cover crop for weed control and nitrogen retention

25%

5