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. Kiev Mutant is more resistant to phomopsis than older narrow-leafed lupin varieties. Weed control Pre-emergence Depending upon soil type, Kiev Mutant will tolerate the same level of simazine before sowing as the old lupin varieties, Illyarrie, Chittick and Danja. Simazine is more active and more likely to cause crop damage on acid coarse-textured soils than neutral clay loams.