General Objective:
Demonstrate the efficacy of the application of FENDER™ to the soil as a nematicide in the coffee crop by evaluating nematode populations.
Location: Alajuela – Tarrazú, Costa Rica
Crop: Caturra Coffee
Types of nematodes evaluated
Trial 1 – Alajuela
Details of the trial:
- Location: Dulce Nombre de Alajuela – 1492 masl
- Variety: Caturra Coffee
- Plantation age: 7 months
- Area: 2.3 Ha
- Variables to be evaluated:
- Number of nematodes
- Genera of phytopathogenic nematodes present
- Time of evaluation: 0, 15, 30, 30, 60 and 75 days after application.
- Treatments:
- FENDER™ Treatment 7L/Ha (150 mL/plant)
- Counter Treatment
FENDER™ Results
Counter Results
Trial 2 – Alajuela
Details of the trial:
- Location: Dulce Nombre de Alajuela – 1492 masl
- Variety: Caturra Coffee
- Plants in full production
- Area: 5.59 Ha
- Variables to be evaluated:
- Number of nematodes
- Genera of phytopathogenic nematodes present
- Time of evaluation: 0, 15, 30, 30, 60 and 75 days after application.
- Treatments:
- FENDER™ Treatment 7L/Ha (150 mL/plant)
- Counter Treatment
FENDER™ Results
Trial 3 – Tarrazú
Details of the trial:
- Location: San Marcos de Tarrazú – 1471 meters above sea level.
- Variety: Caturra Coffee
- Plantation age: 1 month old
- Area: 0.46 Ha
- Variables to be evaluated:
- Number of nematodes
- Genera of phytopathogenic nematodes present
- Time of evaluation: 0, 30, 60 and 90 days after application.
- Treatments:
- FENDER™ Treatment 7L/Ha (150 mL/plant)
- Non applied
FENDER™ Results
Trial 4 – Tarrazú
Details of the trial:
- Location: San Marcos de Tarrazú
- Plantation age: 2.5 years – 20 years
- Variables to be evaluated:
- Number of nematodes
- Genera of phytopathogenic nematodes present
- Time of evaluation: 0, 30, 60 and 120 days after application.
- Treatments:
- Treatment FENDER™ 7L/Ha (150 mL/plant) + BEMIX™ as dispersant.
Results
Conclusions
It is concluded that the nematode control of FENDER™ is very good at 90 days after product application.
Evaluations: 90 days decrease of Meloidogyne population from 40 to 70% in 2.5 years old and 20 years old plants.
In both washed root and field-dirty root the weights in each plant are similar to the standard of the plantations, we do not have the data of the absolute control.
Oscar Arias, Agricultural Engineer ExcelAg Corp.
Email: oarias@excelag.com
