Evaluation Of Models For Predicting Ascospore Maturation Of Venturia Inaequalis And Refinement Of Moisture Variables In The Models

Rate of ascospore maturation of the causal fungus of apple scab, Venturia inaequalis, is correlated with certain temperature and moisture conditions. Models formulated to predict time of ascospore maturity and release use temperature and moisture parameters in their equations. The models predict spore maturity in areas with a particular climate but are not as reliable in other parts of the country. Two models were investigated. Neither of these were reliable for both locations used in this study.