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Pine oil, pine tar, pine-tar oil, orude turpentine, and rosin 
residue plus pine oil, smeared over fresh beef liver in pint Mason Jars, 
were among the best repellents used against the sorewworm. In view of 
the cheapness, availability, nontoxicity, and adhesiveness of pine-tar 
oil, it was considered the best material among the 353 compounds and 
mixtures tested to use upon wounds of domestic animals to protect them 
against this fly»— Parman and coworkers ( 302 ) » 
In comparative tests treated pine-tar oils showed greater fungici- 
dal value than refined petroleum oils and might also act as carriers for 
copper resinate, which they dissolved readily, giving an inseoticidal 
effect as well,— DeOng ( 117 ) • 
Certain combinations of fractions of pine oils, when sprayed on the 
bark of rustic furniture and log cabins made of white cedar, were very 
efficient in killing the larvae of wood borers. — Thompson ( 400 ) » 
A new spreader for nicotine was prepared by using combinations of 
pine-tar oil. The toxicity of nicotine to aphids was greater with the 
new spreader than with soluble tar oil containing 10 percent of potas- 
sium oleate. It was also tested for 2 years 8£«?inst aphids, leaf- 
hoopers, and thrips on peaches, apples, grapes, and vegetable crops.— 
Eddy (126). 
In comparative tests against Aphrophora parallela (Say) on pines 
a pine-oil emulsion (Palustrex) with nicotine sulfate (2:1:800) gave 
complete control, but summer oil with nicotine sulfate (4:1:800) gave 
only partial control. --Felt and Bromley ( 134) • 
In India the litchi bark borer (Arbela tetraonis Moore) and the 
mango tree borer ( Rhytidodera simulans ) were destroyed by injecting 
turpentine oil into the boreholes, but this was not practicable with 
very big trees.— Hector ( 191 ) • 
Spray solutions containing oils were tested against the bean 
aphid. The minimum concentrations (per 100 cc. of liquid) required to 
kill about 95 percent of the aphids follow: Turpentine spirits (tech- 
nical) greater than 5 gnu, terebene (U.S. P.) about 2 gm., and pine oil 
greater than 1 gm. The figure for nicotine sulfate, used as a standard, 
was only 0.009 gm. — Richardson and Smith ( 322 , p. 7). 
One patent (U. S. 1,630,836) refers to pine oil with carbon disul- 
fide for fumigating clothing (Ro ark 333, p. 82); five (U. S. 1,610,167, 
Brit. 221,599 and 230,203, Ger. 470,458 and 481,679) to turpentine as 
an insecticide or repellent (Roark 333, p. 110; 335 , pp. 7, 90); five 
(Brit. 247,242, Fr. 603,552, Ger. 470,458, tj. s. 1,739,840 and 1,884,367) 
to resin acid and rosin for mothproofing and termite-proofing (Roark 
333 , p. 88; 335 , p. 74; and Roark and Rusbey 346, p. 74); and two patents 
(U. S. 369,739 and 1,620,587) to creosote of wood tar for mothproofing 
(Roark 333, p. 42) . 
