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Thief ants in a bakery were eliminated "by the use of a 3-peroent 
DDT dust.— N. J. Agr. Expt. Sta. (275) . 
Tet ram prima caespitum (L.) , the pavement ant 
A S -percent IDT dust was ef fective.— Baseman (203) • 
Pavement ants attacking insulation of houses were destroyed by 
painting sills and surrounding structures with 3 percent of DDT in kero- 
sene.— F« J* Agr. Expt. Sta. (275) * 
Wasmannia auropunotata (Soger) , the little fire ant 
In preliminary tests with DDT favorable results were obtained in 
the control of the little fire ant on citrus trees in Florida.— Baker 
and Porter (81) • 
Unidentified species 
A very heavy infestation of ants (Formica sp.) was tunneling in the 
soil of some flats in a greenhouse and bringing tomato seed to the sur- 
face. Three percent of DDT in talc was applied to the flats and beneath 
the bench on which they were placed. No live ants were found 18 hours 
later. A few dead ants were found by digging in the flats.— Fletcher ( 155) r 
DDT is a contact poison to Formicides .— Domenjos (135 ) . 
Examination of the ground under hairy vetch at Oregon City, Or eg., 
disclosed that 5-percent DDT dust had killed ants.— Rockwood and Reeher 
(303). 
Sphecldae 
Mud-dauber wasps were quickly killed when they walked over wi. 3 
screens treated with water suspensions of DDT in the form of Gesarol A-20 
(0.8 pound in 100 gallons) .—Fluke and Pond (157) • 
Diprionidae 
Diprion frutetorum (F.) , an imported pine sawf ly 
Heodiprion leoontei (Fitch), the red-headed pine sawfly 
Complete control of both species was obtained with 2 pounds of DDT 
in 2 gallons of oil per acre. In treatments applied from an airplane 
against the red-headed pine sawfly, the spray was mixed at the rate of 
DDT 1 pound, oyclohexanene 1 pint, and a horticultural spray base heavy 
oil about 7 pints (enough to equal 1 gallon of mixed spray) • Against 
