Life Sciences Commons^™

Integrated Control Of Soil Insect Pests Of Potatoes, Stewart Learmonth, John Matthiesson

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

One of the more difficult aspects of growing potatoes in Western Australia is controlling soil insect pests. These pests have become more troublesome because the highly effective and persistent organochlorine insecticides previously used to control the main soil pests, African black beetle and whitefringed weevil, were deregistered for agricultural use in 1987. Entomologists from the Department of Agriculture and CSIRO in Western Australia are collaborating to develop new management strategies for these pests that rely less on the use of chemical insecticides

Potato Early Blight And Storage Rot, Department Of Agriculture, Western Australia

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

POTATO Early Blight and storage rot are different phases of the same disease.

Both symptoms are caused by the fungus Alternaria solani.

Assessment Of New Potato Varieties In Western Australia, D. C. Hosking

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

THE Mediterranean type of climate and low elevation of land in the South-West of Western Australia permits a year-round cycle of potato planting.

An early crop is planted in frost-free areas in June and July for harvest between October and December.

This is followed by a midseason crop, planted in August-October for harvest between December and March, and a late crop, planted November-April for harvest between March and September

Survey Of Potato Losses In The Field, James P. Fallon

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

A RELATIVELY large proportion of the potatoes grown in Western Australia are below Grade 1 standard.

Some are left in the field at harvest while others are rejected during grading operations.

Powdery Scab Of Potatoes, S C. Chambers

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

Powdery scab is a serious tuber disease sometimes seen in the market gardens of Coogee and Spearwood.

The disease is most commonly associated with the early winter plantings and sometimes causes heavy losses to individual growers, more so in wet seasons.

Non-Parasitic Diseases Of Potatoes, S C. Chambers

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

POTATO tubers are subject to several non-parasitic diseases which are induced by unfavourable environmental conditions.

These disorders often cause considerable loss of marketable tubers, but in some instances this can be avoided by correct cultural, handling, or storage methods.

Fertiliser Trials With Potatoes, Manjimup : 1958-1959, T Wachtel

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

THIS experiment was the third of this type carried out in karri loam soils.

Significant yield responses were obtained from increasing rates of fertiliser applications.

The results appear to be generally consistent with those obtained previously in the area.

Potatoes Sprinkler Irrigated From The Collie River, John W. Lewis

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

THE highly productive soils of the flats along the Collie River at Roelands are an important source of many of our summer grown potatoes in this State.

Large areas are planted year after year, the record being held by Mr. Clarry Cox of Roelands, who has planted potatoes on the same seven acres every season since 1922.

Fertilizers For Potatoes In Manjimup And Pemberton Areas, James P. Fallon

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

IN articles published in previous issues of the Journal each of a number of potato fertiliser trials carried out in the Manjimup and Pemberton districts has been discussed and results reported.

This article briefly summarises the results of these trials carried out over the past four years and makes definite recommendations to potato growers in these districts regarding quantities of fertilisers to be used on new Red Karri loam soils.

Potato Variety Trial, James P. Fallon, G. C. De Haan

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

DELAWARE has been the only variety of Potato grown commercially in Western Australia. This is due to the fact that in the past an early maturing variety with a short dormancy period has been required to suit both hill plantings and swamp crops.

However, with the advent of sprinkler irrigation and hence better control of moisture and growing conditions, the need for early maturing varieties has ceased to exist in some districts.

There has been consequently an increasing interest in testing varieties which have proved high yielding and of good quality in other parts of the world.

Bacterial Wilt Of Potatoes, Department Of Agriculture, Western Australia

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

EACH season, Bacterial Wilt causes heavy losses to individual growers in several of the potato districts throughout the South-West of the State.

The disease is incited by the bacterium Pseudomonas solanacearum E.F.Sm. and is most prevalent in the districts of Donnvbrook. Pemberton and Manjimup as well as in the area between Waroona and Dardanup.

It is a tuber-borne disease which is extremely difficult to eradicate, once it has been introduced on to a property.