It's called Producing Lupins in Western Australia and can be obtained from the Department. This year the crops were late establishing. I have been affected to the extent of 50 per cent in some of my paddocks. He said growers are using tested seed and try to sow into wet soil, but cannot control the seasons. There was good growth but no seed, and bunching of plants characteristic of the virus.
Mosaic virus is a serious problem for lupin production in a number of states.
1992 estimates from the Northern Agricultural Area of Western Australia indicate yield losses to the virus equivalent to 45,000 hectares of lupins. The results confirmed hopes that aphicides reduce CMV spread. Agronomist Annette Bwye said that determining the full effects of seasonal conditions and picking the best treatment will require further trials. CMV seed infection Seed infection levels of 1 per cent or greater can lead to unacceptable yield losses. Mrs Bwye said that the late arrival of aphids in 1991 interfered with a trial to explore the effects of lower levels of seed infection.