Abstract
Alternaria leaf blotch and fruit spots of apple is a severe fungal disease, whose dynamic is still poorly understood and effective plant protection strategies are scares. Therefore, it is a critical task to a) understand the Alternaria dynamics, i.e. fungus-plant interactions, to b) develop alternative plant protection approaches. Here we present data of a field trail, where we tested the effect of slaked lime and sulphur lime on apple () leaf blotch and fruit spots. All treatments reduced leaf blotch but not fruit spots. The results revealed that positive interactions between slaked and sulphur lime do exist. et al.et al. et al. et al.