Apple collar rot
optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores (sexual overwintering [...] rot, rhizome rot of strawberry, apple rot, apple collar rot and crown rot. It has an extremely wide host range. Damage symptoms Phytophthora cactorum causes [...] occur. Above the graft and on leaves, dark brown, irregular lesions occur. In strawberry, the heart leaves wilt first, then the whole plant. Life cycle