-189- 
BRAMIA MONNIERI (L.) Fennell. Synonym Herpestis roonnleria H. B. K» 
Extracts applied as sprays against adult mosquitoes were much in- 
ferior to the standard mosquitocide.—Wats and Singh (421 ). 
CHELONE GLABRA L. Turtlehead. 
Extracts from the dried leaves were more or less repellent to the 
Japanese beetle.— Metsger and Grant (277) • 
DIGITALIS AMBIGUA Muurr. Synonym: D. grandiflora Lam. 
The leaves of this plant yield digitalin, which was as powerful as 
nicotine and served admirably against aphids and flea beetles. To pre- 
pare the decoction 30 pounds of stems with the leaves are boiled for 
30 minutes in 20 gallons of water, and when used it is diluted with an 
equal quantity of water. It is less liable to injure foliage than 
nicotine and was used as a substitute for niootine in France.— Blin (62 ) • 
DIGITALIS PURPUREA L. Foxglove. 
A solution of the alkaloid digitalin materially increased the 
heart activity of the larva of Corethra crystellina (Deg.).— Dogiel 
(120 , p. 27). 
The tincture of digitalis mixed with honey was fed to ants, which 
were apparently unaffected.— Cobelli (lOO ). 
Digitalin made into a thin paste with water and applied to the 
head of the common blowfly caused great irritation at once, followed 
by weakness and paralysis, and death occurred within 10 to 24 hours.— 
Blyth and Blyth (64, p. 442). 
A decoction of 15 kg. of leaf steins in 100 liters of water, diluted 
for spraying with 100 additional liters of water, was effective against 
aphids on nut trees.— Arranger (40); Blin (61) . 
A spray containing an extract of Digitalis was ineffective against 
the larvae of vine moths in France.— liar ohal (266 , p« 250) • 
Extract of Digitalis (10 percent in water) and folia digitalis had 
no effeot on the caterpillars of Prodenia litura (F.)»- DeBussy (76). 
Commercially prepared extracts of Digitalis were not significantly 
toxic to the bean aphid.- Tattersfield and coworkers (395 ) • 
Extracts of the foxglove (N. F.) were not repellent to the Japanese 
beetle.— Met ager and Grant (277). 
