4 
TABLE 2.—United States imports of rotenone-bearing roots, crude and 
powdered, by princ 
MISC. PUBLICATION 650, U23S) DER Ob AGEICULTURE 
| 1942 
ipal country of origin, 1937-—46—Continued 
Roots and country of origin 1942 1944 | 1945 | 1946 
l 
—__— pe 
1,000 |. 1,000) 1,000°|, 1,000 | 1-00G 
Lonchocarpus: pounds | pounds | pounds pounds | pounds 
i BAG ll PN oe ae re SL ct 193 | 1, 469 554 94 473 
Rerum ea tr dren Eee ee oe _..| 2, 503 | 2,079 | 5,452 | 8, 604 | 10) SG 
Venezuela 2.2 8 eo! ee Se oe oe | eee eee 152 60 5 
Colombians 2). 0:5 gee ee ee ee ee 5 132 5) i= 
| LU V6 (0) paeeeeeerented bey Set i ye Ie Ne 2A | 2. 5515 os beeen 
rinidad. 2 25 eee ee ee ee eee ———— 13 6. |. = 
‘Rotel ys: 2a Sean See | 2,696 | 3, 570 | 6, 327 | 8, 769 | 11, 340 
Derris: 
British: Mast ATri@ae fees 2 ee nn aN 2 a mote ee | fens, cee Penna + oa 
British Malayae sss eee eee 653) || 2s) Sas A ea 
Kreneh: Indochina sas cs 2 ae ee | eee [j-4 3 be 
Netherlands East Indies_____—=_-_ AS) s'|' eayeaed aee egie ee cet 
Belgian ‘Congo 2 ee. = Se ree ee | 45 16 
Philippines. 22. See Se eee QS |p ee eee 2) | ie 
United! Kine dom sess aes [a eke So ee ee 
Hondurdses 2222 0s a eee ne easterlies al eon faes)| fn ug BES 3s ae 
Guatemala. 22 AS) Ue Sa Se OS |e eee eee, | ee | 10 
Leeward* Islands: s 2 .e Serie ars Gee |e eee Mae BUN Py re SER rags 2 
Ip gbonta l:\6 Ramp rete See er TT Peed fel mey ee Papel leew 2 Eee Ss oe 1 
eee a 
Potale <3, ee eee ee a Biher(c esc nero eee 50 | 29 
Total rotenone-bearing roots | 
shown above (erude and | | 
powdered) = 725) es ee eee | 3; 198 | 3; 540) 6, 326 8s S19 | 11, 369 
| 
U. 8. Department of Commerce, FOREIGN COMMERCE AND NAVIGATION OF THE 
UNITED STATES, Annual Reports. 
In the prewar year 1940 the United States, which is by far the 
world’s largest rotenone consumer, imported approximately 6.5 million 
pounds of crude and ground rotenone-bearing roots. This was suffi- 
cient raw material to compound about 30 million pounds of commer- 
cial insecticides. Nearly half this quantity was derris root from Far 
Eastern plantations. The balance was lonchocarpus root from the 
Amazonian sections of Peru and Brazil and from the Orinoco Valley 
of Venezuela. In 1946, United States imports reached nearly 11.5 
million pounds of crude and ground root. Of this amount over 99 per- 
cent consisted of lonchocarpus from South America. Peruvian 
plantations alone accounted for 10.9 million pounds. (See table 2 and 
fie 0L:) 
ah 1848 Chinese gardeners near Singapore were observed employing 
infusions of derris root as insecticides. Gerardo Klinge (1/5), a 
Peruvian agronomist, reported in 1910 that lonchocarpus roots would 
kill ticks. Commercial insecticides containing rotenone extracts from 
derris appeared as trade-marked products in England in 1911. Me- 
Indoo and Sievers (18) of the United States Department of Agricul- 
