Pest Management Guidelines - FieldCrops
Pest Management Guidelines
A Cornell Cooperative Extension Publication

  
Field Crop Management Guidelines

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6 Soybean Guidelines

Contents

6.1 Soybean Varieties

6.2 Soybean Planting

6.3 Managing the Crop

6.4 Managing Soybean Pest Problems in New York

6.5 Managing Disease of Soybeans

6.6 Managing Insects in Soybeans

6.7 Weed Control in Soybeans

 

Acreage of soybeans in New York continues to increase, not just in the traditional district at the head of the Finger Lakes, but throughout the state. The development of local processing has made marketing more convenient. Although soybeans are not difficult to grow, buyers are discriminating about seed quality, so producers must learn to harvest and handle the crop with skill and care. Tests to date indicate that soybeans grown in New York are somewhat higher in protein content (34 percent to 37 percent) and lower in oil content (16 percent to 18.5 percent) than soybeans grown in the Corn Belt.

 

6.1 Soybean Varieties

Varieties of soybeans differ in maturity as much as corn varieties do, but they are classified by a different maturity system. The varieties that require the least heat to mature are placed in Group 00. In progressively warmer parts of our state, the appropriate maturities are Group 0, Group I, and Group II. Group II varieties mature dependably only in the warmer parts of upstate New York.

 

In the warmer regions of central and western New York, we recommend planting 50 percent to late (Group II) and 50 percent to medium (Group I) varieties. If planting is delayed to beyond June 10, we recommend planting Group 0 varieties in central and western New York. In areas of northern New York next to the lakes, we recommend planting 20 percent of the acreage to Group II varieties and 80 percent to Group I varieties. Away from the lakes in northern New York, we recommend planting 50 percent of the acreage to Group I and 50 percent to Group 0 varieties. Do not plant Group II varieties close to the lakes or Group I varieties away from the lakes in northern New York after May 25-30. The varieties recommended in the tables in this section have been good performers at two of our test sites in central/western or northern New York.

 

 

Table 6.1.1. Relative yield (%) of recommended1 Roundup Ready medium-maturing (Group I) soybean varieties in central/western New York

Brand/Source

Variety

Relative Yield (%)2

Years in Tests

Asgrow

AG1903

113

3

Seedway

EXP 1727

111

1

Seedway

SG1919

111

4

FS Seeds

FS199RR

109

3

T.A. Seeds

TS1880R

106

1

FS Seeds

EXP 1906

105

1

NK

S19-R5

104

3

1Only varieties that have been tested at two locations in central/western or in northern New York with relative yields greater than 100% are recommended.

2Relative yields are obtained from Cornell variety tests at Aurora and Dansville in central/western New York and at Sackets Harbor and Chazy in northern New York.

Table 6.1.2. Relative yield (%) of recommended1 Roundup Ready late-maturing (Group II) soybean varieties in central/western New York

Brand/Source

Variety

Relative Yield (%)2

Years in Tests

Asgrow

AG2802

108

1

Asgrow

AG2106

107

1

T.A. Seeds

TS2560R

106

2

Asgrow

AG2204

105

1

FS Seeds

FS217RR

104

2

NK

S21-N6

104

1

NK

S24-K4

103

6

Seedway

SG2205

102

2

Asgrow

DKB24-52

102

1

Asgrow

DKB27-53

101

1

FS Seeds

EXP2506

101

1

1Only varieties that have been tested at two locations in central/western or in northern New York with relative yields greater than 100% are recommended.

2Relative yields are obtained from Cornell variety tests at Aurora and Dansville in central/western New York and at Sackets Harbor and Chazy in northern New York.

 

 

Table 6.1.3. Relative yield (%) of recommended Roundup Ready early-maturing (Group I) soybean varieties in northern New York

Brand/Source

Variety

Relative Yield (%)2

Years in Tests

T.A. Seeds

TS1880R

111

1

Hyland

Razor

107

3

NK

S19-R5

107

3

FS Seeds

FS199RR

107

3

Asgrow

AG1903

105

3

Seedway

SG1919

105

3

Hyland

Respond

101

2

FS Seeds

122RR

101

3

1Only varieties that have been tested at two locations in central/western or in northern New York with relative yields greater than 100% are recommended.

2Relative yields are obtained from Cornell variety tests at Aurora and Dansville in central/western New York and at Sackets Harbor and Chazy in northern New York.

 

 

Table 6.1.4. Relative yield (%) of recommended1 Roundup Ready medium-maturing (Group ll) soybean varieties in northern New York (close to Lake Ontario).

 

Brand/Source

Variety

Relative

Yield (%)2

Years in Tests

 

NK

S24-K6

113

1

 

NK

S24-K4

106

1

 

NK

S21-N6

106

1

 

T.A. Seeds

TS2560R

102

1

 

1Only varieties that have been tested at two locations in central/western or in northern New York with relative yields greater than 100% are recommended.

2Relative yields are obtained from Cornell variety tests at Aurora and Dansville in central/western New York and at Sackets Harbor and Chazy in northern New York.