Life Sciences Commons^™

The Doublegee Problem In Western Australia, D J. Gilbey

Journal of the Department of Agriculture, Western Australia, Series 4

Doublegee is native to South Africa and is now naturalised as a serious weed of crops and pastures throughout the temperate areas of Australia.

Doublegee was introduced for cultivation as a vegetable by English migrants to the Swan River Colony in 1830, and a bed of doublegees is known to have been sown at Mr. J. Phillips' property on the Canning River in 1833. However, the plant soon became a troublesome weed and its name was changed from Cape spinach to Tanner's curse and later to doublegee.

More than 180 doublegee seedlings per square metre have been counted in a …

The Effect Of Applied Nitrogen And Subterranean Clover On The Growth Of Doublegee, D J. Gilbey

Journal of the Department of Agriculture, Western Australia, Series 4

Until 20 years ago doublegees in Western Australia were mainly confined to the red-brown earth soils of the wheatbelt.

Since then, they have spread to light loamy sand soils in the wheatbelt, many of which have carried subterranean clover from the mid-1940s onwards.

It has been widely presumed that the spread of doublegees on to the lighter sandy soils of W.A. can be associated with the establishment of subterranean clover on these soils.

This report summarises the results of a glasshouse experiment on the effect of clover and nitrogen on the growth of doublegee.

The Control Of Doublegee, Geoffrey A. Pearce

Journal of the Department of Agriculture, Western Australia, Series 4

FOUR years ago no practical recommendations could be made for the control of doublegee.

With money provided by the State Wheat Research Fund, research has been undertaken into the control of this weed, and there is now no reason why most farmers cannot bring doublegee under control.

Recommendations For Doublegee, Geoffrey A. Pearce

Journal of the Department of Agriculture, Western Australia, Series 4

Is it worth losing the legume component of the pasture in order to kill the doublegee?

A Chemical For Doublegee, Geoffrey A. Pearce

Journal of the Department of Agriculture, Western Australia, Series 4

DURING the past two years, finance has been made available from the State Wheat Research Fund for an intensive study on doublegee.

A newly-developed herbicide has been shown to give complete control of growing plants, while ecological studies have started to yield valuable information about seed behaviour.

The Doublegee, G R W Meadly

Journal of the Department of Agriculture, Western Australia, Series 4

DOUBLEGEE, like a number of other major weeds, is native to South Africa. It was introduced to Western Australia during the first years of settlement.

There is no more troublesome weed in Western Australia than doublegee. It competes strongly with crop and pasture and its spiny fruits penetrate the hoofs of stock, causing lameness.