1. Location: Estill, South Carolina
2. Field size: 204 acres across several fields
3. Crop: Cotton
4. Management problem identified from yield maps: Low yield from nematode damage.
5. Cost of yield monitor and associated mapping software: Approximately $3,500.
6. Number of years yield monitoring was needed to establish spatial trends: Between 3 and 5 years depending
on field.
7. Management response to identified problem: Yield maps and soil samples (analyzed for nematodes) were
used to create on/off nematicide maps. Invested approximately $3500 for variable rate nematicide applicator
and related hardware and software. Invested approximately $1200 in sample and data analysis (consultant).
8. Return from management response: Reduction in Telone use, improved control of nematodes, and an increase
in yield.
9. Case study contributed by Will Henderson, Jr.