Apple collar rot
spreads more rapidly when the water content of the soil or substrate is higher than normal or optimal for crop growth. How to prevent Apple collar rot [...] Phytophthora cactorum is a plant pathogen that causes root rot, rhizome rot of strawberry, apple rot, apple collar rot and crown rot. It has an extremely [...] causes seedling damping off, a reduced root system and black discolouration of the roots. On the foot, dark brown lesions with sharp borders occur. Above