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Thursday, 27 June 1946

Mr Fadden n asked the Minister in charge of the Council for Scientific and Industrial Research, upon notice -

1.   Hasthe Council for Scientific and Industrial Research made experiments in Queensland with the predaceous beetle,Platylister Chinensis, for biological control of buffalo-fly?

2.   If so, what were the results of the experiment?

Mr Dedman - The answers to the right honorable member's questions are as follows : -

1.   Yes. The Council for Scientific and Industrial Research arranged in July, 1944, for the introduction from Fiji of a consignment of the Histerid beetle, PlatylisterChinensis, for use as a predator against the buffalo fly. The beetle was subsequently liberated in the vicinity of Cairns.

2.   Observations are still being made on the development and effect of the beetle, but it is too early yet to indicate whether the results are favorable.

Mr Francis s asked the Minister in charge of the Council for Scientific and I nd us trial Research, upon notice -

1.   Has the Council for Scientific and Industrial Research in conjunction with the Southeastern District of the Graziers' Association of Queensland conducted experiments recently with rucide (DDT para para isomer) for the eradication of cattle tick and buffalo fly?.

2.   If so, what were the proportions and quantities used in this experiment?

3.   How many cattle were so treated in the experiment and what wasthe cost per head ?

4.   What was the nature of the experiment and what wore the general result and conclusions reached?

5.   Can DDT now be used effectively as a dip as distinct from spraying for the joint eradication of the buffalo fly and cattle tick in the same dipping?

6.   If so, for what period of time is the dipping effective in the case of (a) buffalo fly; and (b) cattle tick?

7.   Are the cattle subject to scalding as a result of this experimental treatment by dipping?

Mr Dedman - The answers to the honorable member's questions are as follows : -

1.   The Council for Scientific and Industrial Research, Division of Economic Entomology, carried out dipping experiments with rucide on the treatment of cattle tick and buffalo fly during February, 1946, at " Rannes ", the property of Messrs. Wilson and McDouall in central Queensland.

2.   In the dipping experiment, five drums, each of 50 lb. of rucide were added to a normal plunge dip, so that the para para DDT content of the preparation in the vat was½ per cent. weight per unit volume.

3.   Some 1,800 head of Hereford and Shorthorn cattlewere put through the dip on the 8th and 9th February. After sixteen days' standing, the dip was further used to treat 105 head. Treatment with rucide was relatively costly in the experiment, working out at just under 6d. per head at current prices.

4.   The experiment was designed primarily to determine not only the toxic properties of the rucide preparation used but also the practicability of preparing large quantities of the dipping fluid, and its stability in the vat. The result of this particular trial indicated that-

(i)   Although the preparation of the dipping fluid involved heating of the rucide over an open fire and the pre-softening of the water, it can be carried out on a practical scale.

(   ii ) For a period of at least two weeks, the rucide dip was reasonably stable. Tests are being continued to determine if it remains stable over longer periods.

(iii)   As far as cattle ticks are concerned, the killin the trial was good although not 100 per cent. and was comparable to that which could be expected from arsenical fluids under optimum conditions.

(iv)   Immediately after dipping, the cattle were completely freed from buffalo fly.

5.   The results of this trial indicate that in rucide, a DDT preparation is available which is practicable to use in a dipping vat in controlling both cattle tick and buffalo fly. However, neither dipping nor spraying treatments result in complete eradication of buffalo fly or cattle tick. 6. (a) Buffalo Fly. - The trial indicated that sufficient DDT remained on the hides of treated animals to affect buffalo flies for as long as fourteen days after treatment. Observations on the. treated herd revealed that in practice they remained virtually free of buffalo fly for a considerable period of at least six weeks. (b) Cattle Tick. - Treated cattle were protected from re-infestation for a period of six-twelve days due to the residual toxic effect of DDT on the seed ticks.

7.   In this particular trial, although the weather was hot and humid, the cattle showed no sign of scald.

Re-establishment: Training Courses; Land Settlement of Ex-servicemen.

Mr Francis s asked the Minister for Post-war Reconstruction, upon notice -

In respect of the State of Queensland -

1.   What is the number of men and women of the services demobilized since the 1 5th August, 1945?

2.   Of that number, how many have applied for full or part-time vocational training or post-graduate training?

3.   How many (a) have been considered; (b) have been accepted; (c) are actually undergoing training; and (d) have been refused ?

4.   What is the number over the period 15th August, 1945, to 1st June, 1940, of (a) men; and (b) women, in receipt of a reemployment allowance, and what is the total amount paid?

Mr Dedman - The answers to the honorable member's questions are as follows : -

1.   Males, 55,220; females 4,101; total 59,321. (Those figures relate to the period of the 1st October, 1945, to the 31st May, 1946. Numbers demobilized between the 15th August. 1945, and the 30th September, 1945, are not immediately available, but efforts are being made to obtain this information.) 2. (a) Vocational -


(b)   University -


(The numbers shown as applied for training cover the period from inception of the Commonwealth reconstruction training scheme (1st March, 1944) to the 31st May, 1946. It is impracticable to ascertain, without examination of each individual application, the number of applications lodged by persons demobilized since the 15th August, 1945. Re (b) Numbers quoted represent total applications for university type training. Applications for post graduate courses are not identifiable from records of this department, but immediate inquiries are being made of the chairman, Universities Commission, and information will be supplied at earliest possible date.)



4.   This information available only from Repatriation Commission, Brisbane, from which earliest possible advice will be obtained.

Mr Archie Cameron n asked the Minister for Post-war Reconstruction, upon notice -

1.   How many individual farms have been applied for in each State and Territory of the Commonwealth by prospectivesoldier settlers?

2.   How many applications have been approved?

3.   How many applications have been rejected ?

Mr Dedman - The answers to the honorable member's questions are as follows : -

1.   Applications from prospective soldier settlers are not received by the Commonwealth, but by the State governments.I shallask the State authorities if they can supply the information desired by the honorable member. 2 and 3. See No. 1.

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