-27- 
WPB authorisation. DDT producers have been instructed by the WPB, how- 
ever, in distributing the ohemioal to give consideration to work carried 
out under the supervision of experienced investigators, aimed at de- 
termining the suitability of DDT for agricultural and other oivilian 
uses.— Anon. (20) • 
In February 1945 WPB emphasized to the DDT Producers Industry 
Advisory Committee that DDT will be released exclusively for experi- 
mental and research purposes, and that placement of orders for other 
insecticides should not be based on the supposition that DDT will be 
available for commercial U3e in 1945. — Anon. (18 , 29) . 
DDT is scheduled for large-scale government tests and a limited 
amount will be available for civilian experiments this year. — Anon. (22 ) 
in February 1945. 
The War Production Board holds the view that the total production 
of DDT over the balance of the year will be required exclusively for 
military uses.— Anon. (28), in March 1945. 
Small amounts of DDT have been made available by WPB for experi- 
mental use in agriculture and other civilian fields. Production, which 
is increasing, is channeled for government use at present (March 1945) • 
— Anon. (34, 56). 
DDT civilian allocations, which will be limited to research and 
experimental work, now are controlled by War Production Board through 
Paragraph F, General Allocation Order M-300. To be eligible, experi- 
ments should be supervised by competently trained and experienced in- 
vestigators, WPB announces. Other eligibility factors are "the type 
of experimentation proposed and whether it will contribute to the 
knowledge and development of the use of DDT, including (a) chemical and 
physical characteristics, (b) pharmacology, (o) toxicology, (d) com- 
patibility with other materials, and (e) formulation of insecticides. 1 * 
Prospective experimenters will be allocated a stated amount of material. 
The producer then may go ahead and supply the DDT, but WPB emphasizes 
that "where a large quantity is requested, careful scrutiny should be 
exercised to see whether appropriate and adequate checks are to be main- 
tained. The results of these large-scale tests should be recorded and 
appraised by competently trained investigators •" The producers 1 alloca- 
tions are for material to be distributed between February 15 and May 15, 
1945.— AIF Assoc. (67). 
On March 26, 1945, it was announced that release of DDT for general 
use in agriculture was unlikely in the near future. Tests with DDT 
against more than 170 different species of insects prove it to be defi- 
nitely more effective than other insecticides currently used for control 
of some 30 pests; against 18 other insects, DDT insecticides were about 
equal to those ordinarily used, and against 14 important destructive 
pests, including the boll weevil, they were found to have little or no 
