-159- 
Oil of cubeb (100 p. p.m.) killed 100 percent of the mosquito larvae 
tested.— Hartzell and Wilcoxon ( 188 ). 
PIPER ELONGATUM Vahl. Matico. 
Extracts of matico were not repellent to the Japanese beetle.— 
Metz ger and Grant (277 ), 
PIPER NIGRUM L. Black pepper. 
A strong extract killed cotton caterpillars within 12 hours,— 
Riley ( 325 , p. 187). 
Black pepper was a very satisfactory repellent to ovipositing moths 
of the corn ear worm.— Freeborn and Tfymore ( 146 ) • 
Pepper was mentioned as a clothes moth repellent in three patents 
(TJ. S. 1,562,510; Brit. 173,536; and Ger. 344,266) .— Roark ( 333 , p. 70). 
SAURURUS CERNUUS L. Common lizardtail. 
Extracts were not repellent to the Japanese beetle .—Metz ger and 
Grant (277). 
PLANTAGINACEAE 
(Plantain Family) 
PLANTAGO LANCEOLATA L. Buckhorn plantain* 
PL ANT AGO MAJOR L. Common plantain. 
Extracts from these plants were not repellent to the Japanese 
beetle.— Metz ger and Grant ( 277 ) • 
PLANTANACEAE 
(Planetree Family) 
PLATANUS OCCIDENTALIS L. American planetree. 
PLATANUS ORIENTALIS L. Oriental planetree. 
Extracts of the American planetree killed only 5 percent of the 
mosquito larvae tested while extracts of the oriental planetree killed 
20 percent.— Hartzell and Wilcoxon (188). 
