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effeot. The performance of DDT inseoticides is outstanding against 
oertain pests, but is not a cure-all or panacea for all insect prob- 
lems*— OPD Washington Bureau (282 ) * 
War Production Board is reiterating ito warning that DDT released 
to civilians this year is solely for experimentation. Nevertheless, 
a WPB spokesman reveals "several instances where it would appear that 
efforts have been made to interpret the regulation to cover more than 
purely experimental programs*" He adds that *in our efforts to con- 
tinue to justify quantities of material for agricultural experiment 
(which must be taken from military supplies) we must have the assur- 
ance that the real intent of regulations is being observed. If DDT 
released frr experimental purposes is used otherwise, it is contrary to 
regulations and may require the attention of our Compliance Division, 
— AIF Assoc (68 ) • 
Additional small amounts of IDT, the war-developed insect killer, 
may be made available for agricultural and civilian experimentation 
during the last half of the year, the Chemicals Bureau of the War Produc 
tion Board stated. At the present time [April 1945] blanket quanti- 
ties of DDT are being released by produoers for distribution to per- 
sons, firms, or government agenoies engaged in research or experimenta- 
tion directed toward the eventual use of the insect killing chemical 
in commereial pest control. Only trained and experienced investigators 
are allowed supplies for suoh work, WPB emphasis *d, WPB warned the 
industry that if DDT leaks out for any but striotly experimental work, 
oomplete allocation oeotrol of the chemical may be neoessary, requir- 
ing considerably more paper work by both the government and industry* 
—Anon* (44 ) • 
The first approved commercial use of DDT was announced May 29 by 
Chemicals Bureau of WPB* Upon request of War Pood Administration a 
limited supply of teohnical grade DDT has been made available in 
Oregon only for use against the potato tuber flea beetle, Rotenone* 
ordinarily used for this purpose in combination with oaleium arsenate, 
is net available, and there are no other effeotive substitute materials 
for this purpose,— Anon, (68); also U* S, UPB (359 ) * 
At the December 1944 meeting ef the California USDA War Board 
Economio Poisons Advisory Committee, it was the unanimous opinion that 
requests for DDT for pest control purposes should be allotted through 
economic poisons' registrants who have adequate facilities to oarry on 
the difficult grinding and other procedures to prepare dusts and sprays, 
and who agree to use adequate safeguards. The Committee readily en- 
dorses the quantities needed to oontinue reputable experimental and 
pilot development work, and desires to encourage conservatism until ex- 
perimental work has been oompleted* 
