Abstract
Bitter rot, caused by a Colletotrichum spp. complex, is a significant disease of apples in the southeastern United States. Symptoms include target-like spots on fruit that render the fruit unmarketable. This report assesses the effectiveness of two fungicides for managing bitter rot. The trial was conducted in 2025 in Blairsville, GA, on a 24-year-old block of Malus × domestica ‘Royal Empire’. Treatments included an untreated control, a standard fungicide spray regimen, Axios, and Bacix. The standard regimen performed as expected, providing substantial control of bitter rot compared with the untreated control. Axios, while showing some efficacy, did not achieve control comparable to that of the chemical standard regimen. Bacix showed no efficacy against bitter rot in this trial.
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Claims 3
Claim · model-written summary
A standard fungicide spray regimen gave substantial control of bitter rot in apple compared with the untreated control.
- Taxon
- Malus × domestica
Malus domesticae0 - Material
- Royal Empiree0
- Treatment
- standard regimene1
- Outcome
- bitter rote1
- Direction
- substantial controle1
- Comparator
- untreated controle1
- Setting
- Blairsville, GAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2025 in Blairsville, GA, on a 24-year-old block of Malus × domestica ‘Royal Empire’”
e1“The standard regimen performed as expected, providing substantial control of bitter rot compared with the untreated control”
Claim · model-written summary
Axios showed some efficacy against bitter rot but did not achieve control comparable to the chemical standard regimen.
- Taxon
- Malus × domesticaMalus domesticae0
- Material
- Royal Empiree0
- Treatment
- Axiose2
- Outcome
- controle2
- Direction
- did not achieve control comparablee2
- Comparator
- chemical standard regimene2
- Setting
- Blairsville, GAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2025 in Blairsville, GA, on a 24-year-old block of Malus × domestica ‘Royal Empire’”
e2“Axios, while showing some efficacy, did not achieve control comparable to that of the chemical standard regimen”
Claim · model-written summary
Bacix showed no efficacy against bitter rot in this trial.
- Taxon
- Malus × domesticaMalus domesticae0
- Material
- Royal Empiree0
- Treatment
- Bacixe3
- Outcome
- efficacy against bitter rote3
- Direction
- no efficacye3
- Setting
- Blairsville, GAe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2025 in Blairsville, GA, on a 24-year-old block of Malus × domestica ‘Royal Empire’”
e3“Bacix showed no efficacy against bitter rot in this trial”