Abstract
Abstract Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola . Tolerant cultivars are available, but application of fungicides is still mandatory for disease control. The timing of the fungicide application is crucial as it determines the outcome of disease epidemiology. A disease incidence (DI) of 5% is widely used as a threshold for fungicide application. Recently a method was developed that allows the quantification of aerial spore dispersal of C . beticola for measuring spore flight intensity. It was aimed in this study to prove if fungicide application based on spore flight might improve disease control compared to DI. In a field trial with artificial inoculation, a single fungicide application at the onset of spore flight slowed down disease development as indicated by reduced disease severity and aerial spore dispersal. However, it did not provide sufficient control in terms of sugar yield. Only a second fungicide application based on spore flight detection achieved an efficacy similar to two fungicide applications based on DI. In contrast, a single fungicide application based either on spore flight or DI was sufficient in two on-farm trials under natural infection with moderate disease pressure. This highlights the necessity of an early timed first fungicide application followed by a second application under high disease pressure induced by artificial inoculation. Although fungicide application based on spore flight achieved sufficient control success in on-farm trials, it seems not to improve disease control compared to the usage of DI as threshold.
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Claims 8
Claim · model-written summary
A single fungicide application at the onset of spore flight slowed down Cercospora leaf spot development in sugar beet.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- a single fungicide application at the onset of spore flighte1
- Interactor
- Cercospora beticola
Cercospora beticolae0pathogen - Outcome
- disease developmente1
- Direction
- slowed downe1
- Setting
- field trial with artificial inoculatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e1“In a field trial with artificial inoculation, a single fungicide application at the onset of spore flight slowed down disease development as indicated by reduced disease severity and aerial spore dispersal”
Claim · model-written summary
A single fungicide application at the onset of spore flight reduced disease severity and aerial spore dispersal of Cercospora beticola in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- a single fungicide application at the onset of spore flighte1
- Interactor
- Cercospora beticolaCercospora beticolae0pathogen
- Outcome
- disease severity and aerial spore dispersale1
- Direction
- reducede1
- Setting
- field trial with artificial inoculatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e1“In a field trial with artificial inoculation, a single fungicide application at the onset of spore flight slowed down disease development as indicated by reduced disease severity and aerial spore dispersal”
Claim · model-written summary
A single fungicide application at the onset of spore flight did not provide sufficient control of sugar yield loss in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- a single fungicide application at the onset of spore flighte1
- Outcome
- control in terms of sugar yielde2
- Direction
- did not provide sufficiente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e1“In a field trial with artificial inoculation, a single fungicide application at the onset of spore flight slowed down disease development as indicated by reduced disease severity and aerial spore dispersal”
e2“However, it did not provide sufficient control in terms of sugar yield”
Claim · model-written summary
A second fungicide application based on spore flight detection achieved an efficacy similar to two fungicide applications based on incidence threshold.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- a second fungicide application based on spore flight detectione3
- Outcome
- efficacye3
- Direction
- similare3
- Comparator
- two fungicide applications based on DIe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e3“Only a second fungicide application based on spore flight detection achieved an efficacy similar to two fungicide applications based on DI”
Claim · model-written summary
A single fungicide application based on spore flight or on incidence threshold was sufficient in two on-farm trials with natural infection and moderate disease pressure.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- a single fungicide application based either on spore flight or DIe4
- Outcome
- sufficiente4
- Setting
- two on-farm trials under natural infection with moderate disease pressuree4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e4“In contrast, a single fungicide application based either on spore flight or DI was sufficient in two on-farm trials under natural infection with moderate disease pressure”
Claim · model-written summary
Fungicide application based on spore flight did not improve disease control compared with the incidence threshold in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- fungicide application based on spore flighte5
- Outcome
- disease controle5
- Direction
- not to improvee5
- Comparator
- usage of DI as thresholde5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e5“Although fungicide application based on spore flight achieved sufficient control success in on-farm trials, it seems not to improve disease control compared to the usage of DI as threshold”
Claim · model-written summary
Fungicide application based on spore flight achieved sufficient control success in on-farm trials.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- fungicide application based on spore flighte5
- Outcome
- control successe5
- Setting
- on-farm trialse5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e5“Although fungicide application based on spore flight achieved sufficient control success in on-farm trials, it seems not to improve disease control compared to the usage of DI as threshold”
Claim · model-written summary
An early first fungicide application followed by a second application is recommended under high disease pressure in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Outcome
- early timed first fungicide application followed by a second applicatione6
- Qualifier
- under high disease pressure induced by artificial inoculatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cercospora leaf spot is an important foliar disease in sugar beet caused by Cercospora beticola”
e6“This highlights the necessity of an early timed first fungicide application followed by a second application under high disease pressure induced by artificial inoculation”
The same questions in other papers
fungicide · control · Beta vulgaris (beet)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
fungicide · Cercospora beticola · Beta vulgaris (beet)Results agree
11 papers in the same direction as this paper
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.