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Life Sciences

Department of Primary Industries and Regional Development, Western Australia

1993

Biosecurity, pests, weeds and diseases

Articles 1 - 2 of 2

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Analysis Of Black Point In Wheat, J M. Wilson Oct 1993

Analysis Of Black Point In Wheat, J M. Wilson

Technical Bulletins

Fungal staining (black point) of wheat can reduce the quality of grain. The most serious problem is a discolouration of products. Discolouration is a consequence of infection by microorganisms. The most likely cause in Western Australia is a species of the common fungus Alternaria. Infection and discolouration occur between flowering and grain maturity, and the optimum environmental conditions are probably consecutive days of high relative humidity together with warm temperatures.


Brood Diseases Of Bee, G. L. Griffiths, Lee Allan Jan 1993

Brood Diseases Of Bee, G. L. Griffiths, Lee Allan

Bulletins 4000 -

American foul brood (AFB) also know as American brood disease (ABD) is an infectious disease of honey bees cause by bacteria, Bacillus larvae. This bacteria forms spores which will survive many years in the environment and the bee larvae become infected by swallowing the spores with teir food. The spores then develop and multiply within the larvae.