Northwest Iowa Crops Web Page
by Todd Vagts
ISU Extension Crops Specialist
Counties Served:  Carroll, Calhoun, Crawford, Ida, Monona, Pocahontas and Sac.


Soybean Aphid "Treated vs. Non-Treated" Yield Comparison Survey
Data Entry Form

Print a blank form as a PDF Document and mail or fax it in.

or fill out and submit the on-line version below.


Field Location

Last Name (optional)    

First Name (optional)    

Select County                 

Soybean Yield Data

Check 1
Yield of Treated Area?    bu/acre    Acres Checked?   

Yield of Non-Treated Area?    bu/acre   Acres Checked?   

Check 2
Yield of Treated Area?    bu/acre    Acres Checked?   

Yield of Non-Treated Area?    bu/acre    Acres Checked?   

Check 3
Yield of Treated Area?    bu/acre    Acres Checked?   

Yield of Non-Treated Area?    bu/acre    Acres Checked?   

Check 4
Yield of Treated Area?    bu/acre    Acres Checked?   

Yield of Non-Treated Area?    bu/acre    Acres Checked?   

 

Optional (but important) Information...

Soybean Acres

Total Farm Soybean Acres    

Total Acres Treated    


Treatment Information

Application by Air or Ground?    

Insecticide used?    

Insecticide Rate?    

Water (gallons/acre)?    

Date of Application (MM/DD/YYYY)?    

Were you satisfied with the aphid kill? 

Aphid Population Estimate

Date Aphids were first notice? (MM/DD/YYYY)   

Aphids found on section(s) of the soybean plant.

Aphids found on soybean stems 

What is your best estimate on average number of aphids per
leaf?     Plant?

How many days did the aphid population persist on the non-treated check
after the insecticide treatment was made to the field?   days.

Variety Information

Variety? 

Maturity Group?

Planting Date? (MM/DD/YYYY)

Additional Comments welcome...


Any data or information gleaned from this survey will not be singled out or used alone.  Only area wide averages will be reported if needed.  Names and locations of farmers and fields will not be given out under any condition.

Print a blank form as a PDF Document and mail or fax it in.

Thank you for your information.


Return to Return to NW Iowa Crops Homepage or Soybean Aphids

For questions or comments please respond to vagts@iastate.edu or 712-792-2366

This page last updated on 10/06/03

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OF SCIENCE AND TECHNOLOGY

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