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Elements of IPM for

Alfalfa and Field Corn in NY State

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Practices Points
GENERAL  
Test soil for fertilizer and pH recommendations.
Every year
Every 2 years
Every 3 years
More than 3 years

10
7
5
1
Keep written field records
Pest levels
Pesticide Applications
Cultural pest management practices (planting date, rotation, harvest, etc.)
Crop variety or hybrid
Crop yields

2
2
2
2
2
Calibrate pesticide and fertilizer application equipment, sprayers and granular boxes: Pesticide sprayer (once a season)
Pesticide planter box (once a season)

10
10
FIELD CORN  
Monitor corn fields for pests: Once a week
Two or three times during growing season
Four or more times during growing season
During specific pest outbreaks
10
3
5
1
Make spring or fall weed inventories, or written map of fields used in weed management decisions 10
Review weed maps (of each field) before planting for the purpose of: Timing cultivation and/or rotary hoeing
Refining herbicide choice and selection
Evaluating pre-emergence herbicide program
Making post emergent treatment decisions
Identifying potential herbicide resistant weeds
Adjusting crop rotation sequence

1
1
1
1
1
1
Rotate corn fields, i.e., plant only in fields where sweet or field corn was not planted the previous year 10
Conduct Pre-sidedress nitrogen testing (PSNT) to decide if additional sidedress nitrogen is needed 3
Take plant population counts to evaluate stand establishment 3
ALFALFA  
Monitor alfalfa fields for pests: Once a week
Two or three times during the growing season
Four or more times during the growing season
During specific pest outbreaks
10
3
5
1
Make written maps of fields to use in evaluating crop condition, and pest (insect, weed and disease) status. 10
Take alfalfa crown counts to assess potential productivity of stands 3
Harvest field earlier than planned to avoid further damage by: alfalfa weevil
potato leafhopper

3
2
Total Maximum Points for both crops
Total Maximum Points for Corn
Total Maximum Points for Alfalfa
110
82
68

revision date: 2000

TO LEARN MORE...

Specific information about the use of these IPM elements can be found in the following publications:

A Method to Measure the Environmental Impact of Pesticides. 1992. New York Food and Life Sciences Bulletin Number 139.

The above reference material can be obtained from county Cornell Cooperative Extension offices or Contact the Frank A. Lee Library to view these publications.