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Colocynth is widely distributed in India, where the root powder 
is used as an insecticide* A 5-percent extract of the leaves killed 100 
percent of the caterpillars of Plutella maculipennis (Curt*) and 
Buproctis fraterna (Moore). A 5-peroent extract of the fruits killed 
100 percent of P* maculipennis , and a 3-percent extract killed 90 
percent of E* fraterna * A 3^percent extract of the stems killed only 
50 percent of E. fraterna and a 4-percent extract killed 100 per cent •— 
Puttarudriah and Subramaniam (311) • 
Connnents by reviewer, *— Colocynth appears to be of little value as 
an insecticide, but since it is one of our common poisonous drugs a more 
careful toxicological study of it would be worth while* 
CUCUMIS SATIVUS L. Cucumber* 
The juice was said to banish wood lice and to kill cockroeches* 
It was recommended that floors be strewn with the green peel for three 
or four nights.— Drury ( 122 , p* 173)* 
CUCURBITA FOETI DISS IMA H.B.K. Missouri gourd. 
Acetone extracts of the roots killed none of the mosquito larvae 
tested.— Hartzell and Vfilcoxon (188) * 
CUCURBITA PEPO L. Pumpkin* 
In Germany it was suggested that freshly cut pumpkin leaves be 
rubbed on cattle or horses as a repellent for flies*— Anonymous (_8) • 
Acetone extracts of pumpkin seeds killed 100 percent of the 
mosquito larvae tested and a concentration of over 600 p.p*n. killed 
85 percent*— Hartzell and Wilcoxon (188 )* 
ECBALLIUM ELATERIUM (L.) A. Rich. Squirting cucumber* 
Elaterin, derived from this plant, was ineffective for mothproof- 
ing. — Jackson and Wassell (219 , p* 1177)* 
MICROSECHIUM HELLERI (Peyr*) Cogn. Sanacoche. Chichicamolle* 
This plant, which contains saponin, was found at Villa del Carbon, 
Mexico. For insecticidal purposes, the fresh roots were crushed end 
macerated in water (1:20) and boiled for about 1 hour, but if the roots 
were dry the maceration was prolonged for 2 days or more before boiling. 
This decoction was found satisfactory as a spray against phylloxera. — 
Mexico Cornision de Parasitologia Agricola ( 279 ) . 
Alcoholic and water extracts of this plant used as sprays and the 
powder used ns a dust had almost no effect on aphids and potato beetle 
larvae. The powder had no effect on silkworms and fall webworms.-- 
Mclndoo and Sievers (unpublished results of tests in 1928)* 
