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Extracts of the bugle weed killed none of the mosquito larvae 
tested. — Hartzell and Wilcoxon (188). 
MARRUBIUM VULGARE L. Common hoarhound. 
The decoction and alcoholic extract hart no effect on cotton 
caterpillars.— Filey ( 525 , p. 185). 
Extracts were not repellent to the Japanese beetle.— Metzger and 
Grant (277), 
Water extracts of the whole plent killed 30 percent of the mos- 
quito larvee tested.— Hartzell end Wilcoxon ( 188) • 
MELISSA OFFICINALIS L. Common balm. 
This plant was cultivated in the Crimea both for medical uses end 
also for use as a bait to attract swarms of bees.— Par fentjev ( 300 ) . 
Torongil (balm-gentil) was used in Venezuela for killing insects. 
It was grown in La Guaira.— Foark ( 352 , p. 38) • [ This plant is prob- 
ably U. officinalis . J 
Extracts of the leaves and stems killed none of the mosquito 
larvae tested.— Hartzell and Wilcoxon ( 188 ). 
MENTHA ARVEKSIS L. Field mint. 
MENTHA CANADENSIS L. American wild mint. 
Extracts were not repellent to the Japanese beetle.— Metzger and 
Grant (277). 
MENTHA LONGI FOLIA (L.) Huds. Synonym: M. sylvestris L. 
The essential oil from this plant was tested in Russia against the 
red spider end the cotton aphid. The toxicity increased with the con- 
centration, end the oil was repellent to the aphids.— Kayumov ( 225 ) . 
MENTHA PIPERITA L. Peppermint. 
Oil of peppermint was of no value as a repellent or attractant to 
the screwworm.-- Parmen and coworkers ( 302 ) • 
Diluted oil of peppermint was usually attractive to the oriental 
cockroach, but the concentrated oil was always repellent.— Cole ( 101 ) . 
Extracts of the whole plant killed only 10 percent of the mos- 
quito larvae tested.— Hartzell end Wilcoxon ( 188 ) . 
