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Showing 1 to 9 of 9 for “"Venturia inaequalis"”.
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Kinetische Auslöser der Ascosporenausschleuderung von Venturia inaequalis (Cke.) Wint.
Ein Sensor-Prototyp zur Messung der kinetischen Energie des Regens wurde entwickelt und exemplarisch eingesetzt. Der Sensor basierte auf einem Lautsprecher als Schwingungsaufnehmer, der die Energie auftreffender Tropfen in elektrische Impulse umwandelte und auf einen Schreiber übertrug. …
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Characterization of Fungicide Resistance in Venturia inaequalis Populations in Virginia
Apple scab (causal organism: Venturia inaequalis) is an economically devastating disease of apples that is predominantly controlled with fungicides. Of the chemical classes currently available, the sterol-inhibiting (SI) and strobilurin (QoI) fungicides are the most commonly used. Recent …
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Epidemiological studies on primary inoculum of Venturia inaequalis and V. asperata for apple scab management
Apple scab, caused by the ascomycete Venturia inaequalis, is the most important disease of apple, causing great losses worldwide. Its management is largely based on fungicide treatments, especially targeting ascosporic infections. To reduce the pesticide input, sanitation practices against …
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PREDICTING POTENTIAL ASCOSPORE DOSE OF VENTURIA INAEQUALIS (CKE) WINT IN COMMERCIAL APPLE ORCHARDS OF NEW HAMPSHIRE (MODELING, EPIDEMIOLOGY, DISEASE MANAGEMENT)
… of a study of factors affecting the number of Venturia inaequalis ascospores per m('2) orchard floor per season (PAD) in New Hampshire apple orchards. PAD was calculated as the product of scab lesions per m('2) leaf tissue at leaf fall, pseudothecia per lesion, asci per pseudothecium, the …
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DISPERSAL GRADIENTS AND DEPOSITION EFFICIENCY OF VENTURIA INAEQUALIS ASCOSPORES AND THEIR RELATIONSHIP TO LESION DENSITIES (APPLE SCAB DISEASE, SPORE DISPERSAL, TRAPPING)
<p>The airborne dispersal of Venturia inaequalis ascospores and Lycopodium sp spores from a point source was examined in an apple orchard. Twenty-five volumetric spore traps were constructed, and a system developed that governed intervals of trap operation by leaf wetness. The estimated inoculum …
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THE APPLE SCAB DILEMMA: FROM STRATEGIES TO COPE WITH Venturia inaequalis DAMAGES TO THE RISK OF THE EMERGING PATHOGEN Venturia asperata ON RESISTANT APPLE CULTIVARS
Apple scab, caused by Venturia inaequalis, is the most significant disease affecting apple trees. It can negatively impact both plant growth and fruit quality, both in the orchard and during postharvest storage. Various approaches can be employed to mitigate its effects. The experimental activity …
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Physiological and ultrastructural effects of sterol-inhibiting fungicides on apple leaves and the apple scab fungus
… were made of the in vitro conidial state of Venturia inaequalis following the application of fenarimol. Conidia treated 2 hours with the fungicide for had necrotic areas throughout the cytoplasm. The plasmalemma was not well defined, and appeared to be degrading. Increased vacuolization was …