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PUBLIC RECORD OFFICE, LONDON
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Enemies of the Fly.
Ascertain what natural enemies there are of the fly at different stages in its growth. Are birds of any practical importance as enemies of the fly?
Influence of Odours.
Test various substances that may serve to attract flies for that purpose of trapping.
Search for an effective and lasting repellent.
Endeavour to find a substance the odour of which will stimulate larviposition.
For the elucidation of the foregoing problems it seems desirable that there should be at least six different experimental stations, widely distributed over Tropical Africa, and the countries that suggest themselves as being most suitable for the purpose are:-Zululand, Southern Rhodesia, Nyasaland, Tanganyika Territory, the Sudan and Northern Nigeria.
The selection of the precise areas in these countries that would afford the best facilities for these investigations would require a more intimate knowledge of local But it may be laid down conditions than the Sub-Committee at present possesses.
generally that the various areas should be representative of different types of environment, and that they should, as far as possible, be situated in localities in which the presence of tsetse-flies is actually obstructing settlement or is likely to do so in the near future.
.
Each of these stations should be under the control of a competent entomologist, and he should have at least one assistant who would be able to carry on the work in the event of the senior man falling sick or going on leave. Unfortunately at the present time there are very few men who combine the requisite qualifications and experience for this class of work. This difficulty could be met by starting in the first instance, say, two stations only. In these the new men could be concentrated for training purposes. After a time the most promising pupil could be left in charge, and the others would proceed to open up a new station elsewhere.
While the observers in each station would be expected to keep an alert watch on all aspects of this complex problem, it would probably be advisable for some of the stations to give special attention to certain lines of work, such as, control by clearing, artificial breeding-places, rearing of parasites, etc.
Each station ought to send in a monthly progress report to the Imperial Bureau of Entomology, so that the Glossina Sub-Committee may be kept advised of all the latest developments. They would thus be in a position to co-ordinate the work, to prevent overlapping, and to arrange promptly for the testing under divers conditions of any new hypothesis that may be put forward.
As the work progresses it is probable that special lines of enquiry will become necessary for which the aid of a protozoologist or veterinarian may be required, and provision should be made for such eventualities.
May. 1920.
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No. 102.
MINUTES OF THE SECOND MEETING OF THE CONFERENCE SUB- COMMITTEE OF THE IMPERIAL BUREAU OF ENTOMOLOGY, HELD ON 4TH MAY, 1920.
Present:
SIR DAVID PRAIN (Chairman).
DR. BAGSHAWE.
SIR SIDNEY HARMER.
PROF. NEWSTEAD.
DR. MARSHall.
DR. NEAVE.
MR. PARKINSON (Secretary).
1. THE minutes of the first meeting* of the Sub-Committee were approved. Dr. Marshall stated that there would be eighteen Dominion and Colonial delegates at the Conference, and that he had now received from most of them replies
2.
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to his inquiries as to subjects for discussion at the Conference and papers to be read
3. The Sub-Committee drafted the following provisional programme for the Conference :-
Tuesday, 1st June.-Reception of delegates.
Business Meeting: "The work and finances of the Bureau."
Wednesday, 2nd June. "Legislation."
Afternoon.-Paper on "Cotton Pests" by Mr. H. A. Ballou.
Thursday, 3rd June.- "The Education of Economic Entomologists," by
Prof. H. M. Lefroy.
Afternoon.-Natural History Museum Reunion.
Friday, 4th June.-Visit to Rothamsted. Saturday, 5th June.-Tsetse problem.
Monday, 7th June.-Paper on "Relationship of the Health of Plants to Insect Attacks: A discussion of resistance and immunity," by Mr. H. A. Ballou.
Afternoon. Three papers on West Indian insects.
Tuesday, 8th June.-Visit to Oxford.
Wednesday, 9th June.-Paper on "Artificial versus Natural Methods of
Control of Insect Pests," by Mr. F. W. Urich. Afternoon.-Sundry short papers.
Thursday, 10th June.-Visit to Cambridge.
Friday, 11th June.-General Meeting of Committee to receive reports of Sub-Committees appointed during the Conference and to frame final resolutions.
Afternoon. Final meeting of Conference for consideration of resolu-
tions.
Evening-Dinner.
4. The following recommendations were agreed to:--
(1) All meetings to be held at the rooms of the Linnæan Society at Bur-
lington House.
(2) Morning meetings to begin at ten o'clock; afternoon meetings to begin
at three o'clock.
(3) Viscount Harcourt to be specially requested to preside at the opening and final meetings, and different members of the Committee to be asked to act as chairman at the other meetings.
(4) (a) The Director to invite the attendance of persons specially interested in the subject under discussion at any of the scientific meetings: Sir D. Prain to advise as to mycologists to be invited to the discussion on "Legislation," and Dr. Bagshawe as to medical men for the discussion on the "Tsetse problem."
(b) Professor Biffen to be invited to the discussion on the "Re- lationship of the Health of Plants to Insect Attacks," and Professor Sidney Hickson to that on Education of Economic Entomologists." (5) A verbatim report of the business meeting only to be taken.
(8) (a) The railway fares of delegates and others visiting Rothamsted, Oxford, and Cambridge to be paid from the Carnegie Fund, permis- sion to use a portion of this for expenses of delegates attending the Conference having already been obtained from the executors of the late Mr. Carnegie.
(b) Arrangements to be made at Rothamsted for lunch for dele- gates and others who accept Dr. Russell's invitation.
(7) The Secretary of State for the Colonies to be asked to preside at the
dinner on the 11th of June.
(8) An invitation from Dr. Stewart MacDougall for delegates to visit Edinburgh after the Conference to be considered further when Dr. MacDougall could fix a provisional date.
5. The statement prepared by Dr. Marshall on the work of the Bureau was received, and the Secretary was authorized to arrange for it to be printed for circulation to the Committee and to all delegates before the opening meeting.
* No. 98.
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