Integrated Control of Apple Scab and Powdery Mildew in an Organic Apple Orchard by Combining Potassium Carbonates with Wettable Sulfur, Pruning, and Cultivar Susceptibility.

@article{Holb2016IntegratedCO,
  title={Integrated Control of Apple Scab and Powdery Mildew in an Organic Apple Orchard by Combining Potassium Carbonates with Wettable Sulfur, Pruning, and Cultivar Susceptibility.},
  author={Imre J. Holb and Stefan Kunz},
  journal={Plant disease},
  year={2016},
  volume={100 9},
  pages={
          1894-1905
        }
}
In a 4-year study in a whole-field sanitized organic apple orchard, the effectiveness of nine fungicide treatments, including potassium mono- and bicarbonate and their combinations with wettable sulfur, were evaluated for scab and powdery mildew control on two cultivars with different susceptibility to scab and powdery mildew, under two pruning treatments. The whole-field sanitation practice was performed by removal of infected fallen leaves. Treatment effects on phytotoxicity and yield were… 

Figures and Tables from this paper

Categorization of apple cultivars based on seasonal powdery mildew disease progression in two disease management systems over 12 years
TLDR
Powdery mildew classification categories can contribute to a more appropriate cultivar selection for establishing orchards managed by environmentally friendly approaches and were suggested as input parameters in disease warning systems for measuring host resistance.
Fungicide efficacy trials for the control of powdery mildew (Podosphaera cerasi) on sweet cherry trees (Prunus avium)
TLDR
Electrolysed oxidised water and fluopyram/trifloxystrobin significantly lowered disease severity and incidence in all of the locations tested, however, biweekly applications of EO water had little effect on the fungus and weekly applications were phytotoxic in the nursery and greenhouse.
Preharvest Application of Sulfur as Pesticide on Fresh Hull and Kernel of Pistachio (Pistacia vera L.)
In recent years, sulfur has been shown to be effective in controlling pistachio psylla. In this study, the effect of sulfur foliar application as psylla pesticide on fresh fruit and kernel of three
Efficacy of some Chemical Structure of Pesticides on Yield, Fruit Quality and Infection with some Diseases of "Anna" Apple Trees
TLDR
Spraying one of the following chemical compounds reduced infection with powdery mildew and apple scabies on trees, which led to improved and increased yield, number and weight of fruits, also improved the quality of the fruits; increasing TSS, coloration, as well as the percentage of the anthocyanin in the peel of the fruit and decreasing acidity.
Sweet Immunity: The Effect of Exogenous Fructans on the Susceptibility of Apple (Malus × domestica Borkh.) to Venturia inaequalis
TLDR
It was demonstrated that exogenous leaf spraying can reduce the development of apple scab disease symptoms and a significant reduction of in vitro mycelial growth of V. inaequalis on plates supplemented with levans when compared to controls, indicating a direct inhibition of fungal growth.
Shelf Life of Fresh Pistachio (Pistacia vera L.) upon Foliar Application of Sulfur as Pesticide
Application of sulfur as pesticide is a strategy in plant protection, but it is of great importance for a pesticide not to influence the quality of the product. In this study, movento (0.5 kg/1000
Alternative disease management strategies for organic apple production in the United Kingdom
Apple is a globally important tree fruit. In the United Kingdom (UK) and mainland Europe, there is ongoing consumer and environmental concern regarding over-reliance on conventional chemicals for
...
...

References

SHOWING 1-10 OF 57 REFERENCES
Effect of six sanitation treatments on leaf litter density, ascospore production of Venturia inaequalis and scab incidence in integrated and organic apple orchards
  • I. Holb
  • Biology
    European Journal of Plant Pathology
  • 2006
TLDR
Three leaf collection treatments are recommended in both integrated and organic orchards and the possibilities of successfully incorporating these methods into orchard management practices are interpreted.
Potassium bicarbonate in preventing and control of apple scab.
TLDR
Potassium bicarbonate becomes a perspective fungicide especially for organic fruit tree growing to control apple scab and other apple diseases.
Practical experience with the use of baking powder (potassium bicarbonate) for the control of apple scab (Venturia ineaqualis).
In small plot trials, performed by several institutes in the past years, potassium bicarbonate proved to be a promising alternative to the use of copper for the control of apple scab in organic
Effects of Shredding or Treating Apple Leaf Litter with Urea on Ascospore Dose of Venturia inaequalis and Disease Buildup.
TLDR
Two sanitation practices, shredding the leaf litter with a flail mower and urea application, were evaluated for their potential to reduce the risk of primary scab in commercial apple orchards in the northeastern United States.
Effect of four non-chemical sanitation treatments on leaf infection by Venturia inaequalis in organic apple orchards
TLDR
Effect of four non-chemical sanitation treatments was evaluated on spring and autumn leaf infection by Ven turia inaequalis and on leaf litter degradation in two high-density organic apple orchards and in two moderately scab-susceptible apple cultivars from 2001 to 2003.
Toward an Integrated Use of Biological Control by Cladosporium cladosporioides H39 in Apple Scab (Venturia inaequalis) Management.
TLDR
The overall results of the field trials consistently showed-for the first time-that stand-alone applications of the antagonist C. cladosporioides H39 can reduce apple scab in leaves and fruit.
New Products against Apple Scab and Powdery Mildew Attack in Organic Apple Production
TLDR
A large variability of the F1 seedlings for several traits is pointed out, including an early fruiting and a better resistance to scab and powdery mildew, compared to the ones from ‘cultivars x species’ combinations.
...
...