Septoria leaf spot and glume blotch of wheat

SEPTORIA leaf spot and glume blotch of wheat occur throughout Australia and are capable of reducing crop yields. While no estimates of yield losses are yet available in Western Australia both diseases can cause serious damage to crops

Summer and autumn rainfall in relation to epidemics of wheat stem rust in Western Australia

High summer and autumn rainfalls, followed by rust infection of volunteer plants and favourable conditions during late winter and spring, lead to rust epidemics. WIDESPREAD outbreaks of wheat stem rust are rare in Western Australia

Diseases of clovers in Western Australia

LEGUMES of the Trifolium species are grown widely in the State, and occupy an important place in our Agriculture. There are a number of parasitic diseases of clovers, yet none have gained major economic importance

Barley yellow dwarf virus in Western Australia

BARLEY yellow dwarf virus disease was first positively identified in Western Australia in 1961. Records indicate that symptoms approximating those later found to be caused by this disease were reported as early as 1936

Legume inoculants for 1967

PERIODIC changes are made in the strains of rhizobia released for the inoculation of various legume groups. These changes are made when it is evident from experimental data that better strains of rhizobia are available, or that the old ones are no longer effective. New strains of rhizobia may give improved nodulation of legume seedlings or increase dry matter yields

Net blotch of barley

NET BLOTCH is the most prevalent disease of barley in Western Australia, and is capable of reducing yields considerably. It is caused by the fungus Pyrenophora teres Drechsl

The effect of straw on the emergence of wheat seedlings

The emergence of wheat seedlings was decreased substantially when seed was planted close to oaten straw. When the grain was placed a 1/4 inch above a straw layer emergence was depressed by more than half

Barley diseases in Western Australia

BARLEY DISEASES caused by pathogenic organisms are capable of reducing yields considerably. The recognition of disease is important so that control measures can then be taken at the appropriate time

Oat diseases in Western Australia

OVER ONE MILLION acres of oats are grown yearly in this State, making the crop next in importance to wheat. Pathogenic organisms are responsible for considerable reductions in yield, yet losses can be minimized if control measures are taken

Inoculation and pelleting of lupin and serradella seed

LUPINS AND SERRADELLA are not as extensively grown in Western Australia as some other legumes, but they are useful pasture species, particularly on poorer sandy soils. Virgin soils may contain rhizobial bacteria capable of nodulating some members of the lupin group, but none of these bacteria have been found to nodulate serradella (Lange, 1961). The use of inoculated seed is imperative except where lupins have been grown before