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Full-Text Articles in Life Sciences
Test Detects Resistant Green Peach Aphids In Lupins, Francoise Berlandier, Ian Dadour
Test Detects Resistant Green Peach Aphids In Lupins, Francoise Berlandier, Ian Dadour
Journal of the Department of Agriculture, Western Australia, Series 4
Confirmation of insecticide resistance in green peach aphid in Western Australia's lupin crops means farmers will have to choose insecticides much more carefully to control this pest. Resistance within an aphid population varies, and when resistant aphids are no longer exposed to insecticides, they may revert back to being susceptible in as little as one generation. Furthermore, when these revertant populations are exposed to the same insecticides in the future, resistance quickly reoccurs. In this article, the authors discuss a test to determine the extent of insecticide resistance in green peach aphid and how to manage it.
Lupin Split Seed : A Disorder Of Seed Production In Sweet, Narrow-Leafed Lupins, M W. Perry, J. W. Gartrell
Lupin Split Seed : A Disorder Of Seed Production In Sweet, Narrow-Leafed Lupins, M W. Perry, J. W. Gartrell
Journal of the Department of Agriculture, Western Australia, Series 4
Commercial seed production from narrow-leafed lupins (Lupinus angustifolius L.) began in Western Australia in 1967, based on the newly-bred low alkaloid cultivar Uniwhite. The release of improved cultivars has led to the crop's wide acceptance and more than 100 000 ha were sown to sweet lupins in 1975.
With the greater area and wider range of soil types devoted to lupins, a developmental abnormality of the seeds, which became known as "split seed", was observed in some situations.
Phomopsis : The Causal Fungus Of Lupinosis, P Mcr Wood, A. G. P. Brown
Phomopsis : The Causal Fungus Of Lupinosis, P Mcr Wood, A. G. P. Brown
Journal of the Department of Agriculture, Western Australia, Series 4
It is now well known that lupinosis of sheep and cattle follows ingestion of lupin stubble colonised by the fungus Phomopsis rossiana. The fungus infects green lupins but persists on the stubble and under certain conditions apparently produces a toxin which causes the disease.
As Phomopsis is now widespread on lupins in Western Australia its ecology has been studied in detail as a basis for possible control measures.
This article outlines what is known so far of the disease and its control.