Abstract
Coffee rust disease causes significant losses to coffee bean production, and producers can incur heavy costs managing it with fungicides. Given the potential for coffee rust infection rates to increase with climate change, a better understanding of the factors influencing coffee rust infestation could help coffee producers manage coffee rust cost-effectively. In this study, the effect of the abundance of Lecanicillium lecanii-infected scale insects, shade, variety type, and plant density were compared, with spatial and temporal effects taken into consideration. L. lecanii-infected scales surveyed the year previous to the coffee rust survey decreased coffee rust intensity, while L. lecanii-infected scales surveyed the same year to the coffee rust survey showed a positive relationship under some conditions. Shade decreased coffee rust intensity in 2009 but not in 2010, and varieties had differing probabilities of being infected by coffee rust. Coffee plant density had no effect on rust incidence, but it did seem to affect the dispersal of rust through space. The results suggest that ecological management of L. lecanii-infected scales and variety type may help to decrease coffee rust intensity and incidence.
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Claims 9
Claim · model-written summary
Previous-year abundance of L. lecanii-infected scales was associated with lower coffee rust intensity.
- Interactor
- L. lecanii-infected scalese0other
- Outcome
- coffee rust intensitye0
- Direction
- decreasede0
- Qualifier
- year previouse0
CoffeaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“L. lecanii-infected scales surveyed the year previous to the coffee rust survey decreased coffee rust intensity, while L. lecanii-infected scales surveyed the same year to the coffee rust survey showed a positive relationship under some conditions.”
Claim · model-written summary
Same-year abundance of L. lecanii-infected scales showed a positive association with coffee rust under some conditions.
- Interactor
- L. lecanii-infected scalese0other
- Outcome
- coffee rust intensitye0
- Direction
- positive relationshipe0
- Qualifier
- under some conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“L. lecanii-infected scales surveyed the year previous to the coffee rust survey decreased coffee rust intensity, while L. lecanii-infected scales surveyed the same year to the coffee rust survey showed a positive relationship under some conditions.”
Claim · model-written summary
Shade decreased coffee rust intensity in 2009.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“Shade decreased coffee rust intensity in 2009 but not in 2010”
Claim · model-written summary
Shade did not decrease coffee rust intensity in 2010.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“Shade decreased coffee rust intensity in 2009 but not in 2010”
Claim · model-written summary
Coffee varieties differed in probability of rust infection.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“varieties had differing probabilities of being infected by coffee rust.”
Claim · model-written summary
Coffee plant density had no effect on rust incidence.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“Coffee plant density had no effect on rust incidence, but it did seem to affect the dispersal of rust through space.”
Claim · model-written summary
Coffee plant density appeared to affect spatial dispersal of rust.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“Coffee plant density had no effect on rust incidence, but it did seem to affect the dispersal of rust through space.”
Claim · model-written summary
The authors suggest managing L. lecanii-infected scales to reduce coffee rust intensity and incidence.
- Interactor
- L. lecanii-infected scalese0other
- Outcome
- ecological management of L. lecanii-infected scalese0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“The results suggest that ecological management of L. lecanii-infected scales and variety type may help to decrease coffee rust intensity and incidence.”
Claim · model-written summary
The authors suggest managing variety type to reduce coffee rust intensity and incidence.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study of Abiotic and Biotic Factors Affecting Coffee Rust Infection Rates in a Shade-Grown Organic Coffee Farm”
e0“The results suggest that ecological management of L. lecanii-infected scales and variety type may help to decrease coffee rust intensity and incidence.”