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EUCALYPTTJS spp. 
A few twigs or leaves laid on the pillow at night were said to 
keep away mosquitoes, but eucalyptus trees are probably of no value 
as mosquito repellents, — Riley and Howard (327 , p. 268); Howard ( 205 , 
p. 62)* 
Smoke from the burning fresh leaves stunned mosquitoes in 3 to 5 
minutes and killed them in 3 hours.— Celli and Casagrandi (82, p. 96). 
The leaves were ineffective against bedbugs, roaches, and the lar- 
vse of clothes moths.— Scott and coworkers ( 36l) • 
When the attack of the woolly apple aphid is confined to a few parts 
of the tree these may be painted with kerosene or eucalyptus oil, which 
act more quickly and are more deadly than the best sprays used.-- 
Parrell (133). 
The leaves of eucalyptus were ineffective against chicken lice and 
the dog flea. — Abbott (57, pp. 7, 11). 
Suoalyptus leaves, dusted on clothes, are worthless as a clothes 
noth control, although they have often been recommended for this pur- 
pose* — Back (44). 
Oil of eucalyptus was of no value as a repellent or attract ant to 
the screwworm.— Parman and coworkers ( 302 ). 
Oil of eucalyptus was strongly repellent to the oriental cook- 
roach.— Cole ( 101 ). 
Oil of eucalyptus has been vised in two patented insecticides 
(G9r. 577,760, U. S. 1,650,856) .— Roark ( 555 , p. 45) and Roark and 
Busbey (346 , p. 25). 
EUGENIA CARYOPHYLLATA Thunb. Synonym: E. aromatioa Baill. 
Clove tree. 
Powdered cloves were ineffective against cockroaches, but effi- 
cient against carpet beetle larvae.— Scott and coworkers ( 361 , pp. 13, 
34). 
Eugenol tested on a piece of cloth against body lice killed all 
of them within 12 hours.— Moore and Hirschfelder ( 285 , p. 55). 
LBugenol is the chief constituent of oil of cloves and also occurs in 
the oils of pimento, star anise, etc. There are other references in 
the literature dealing with eugenol, chiefly as attractants and 
repellents .J 
