Because of this, albus lupins are less responsive to phosphate fertiliser than narrow-leafed lupins, especially where the paddock has a good fertiliser history. This may benefit early growth on less fertile coarse-textured soils. Diseases Kiev Mutant is extremely susceptible to anthracnose, especially in high rainfall regions. The disease causes bending and twisting of stems with a lesion in the crook of the bend, this is particularly noticeable when the crop is flowering. The lesions are elongated, dark brown with a pale pinkish spore mass in the centre.
Pods develop similar lesions to stems with twisting and distortion.
Infected seeds are often malformed and discoloured and are likely to transmit anthracnose into the next crop. As well infecting leaves and stems, the fungus can also infect pods and seeds, causing brown blotching, shriveling and downgrading. Infected seed can transmit brown spot into the next crop. Root infection causes lesions on tap and lateral roots which can kill seedlings and reduce stand density. BYMV is seed transmitted in albus lupins.