Abstract The resistance level of 90 single lesion conidial isolates Venturia inaequalis collected from multiple commercial orchards in Shaanxi and Gansu Provinces Xinjiang Autonomous Region China to the demethylation inhibitor (DMI) fungicide difenoconazole quinone outside (QoI) pyraclostrobin was examined. EC 50 values ranged 0.143 6.735 ?g/mL 0.084 2.026 ?g/mL, respectively. Among isolates, 1...

Apple scab caused by Venturia inaequalis (Cke.) Wint. is the most important disease of apple trees worldwide and requires a high number fungicide applications. The G143A substitution in inhibitor binding site cytochrome b V. confers level resistance to strobilurins targeting bc1 complex. aim this work was substitute labor intensive vitro assays, with faster quantitative PCR. An allele-specific ...

The objective of the research is to study biology pathogen scab Venturia pirina Aderh depending on agrometeorological conditions pear vegetation and assess collection cultivars for susceptibility disease. biological features in western foothill agro-climatic region Crimea are studied. influence climatic occurrence various epidemiological types manifestations pears estimated. As a result researc...