May 19U5 2-656 
UNITED STATES DEPARMENT OF AGRICULTURE 
LIBRARY AGRICULTURAL RESEARCH ADMINISTRATION 
\TE PLANT BOARD bureau or entomology and plant quarantine 
A list of arthropods, arranged according to order, family, 
AND GENUS, AND THEIR SUSCEPTIBILITY TO R0TEN0NE 
AND THE ROTENOIDS. 
By R. C. Roark, Division of Insecticide Investigations \J 
Abstracts of all available information relating to the insecti- 
cidal value of Derris , Loncho carpus , Tephrosia , and Mundul ea and their 
active constituents, namely, rotenone and the rotenoids, have "been 
presented in the E Series of the Bureau of Entomologi' and Plant Quaran- 
tine, United States Department of Agriculture. 2/ In those abstracts 
the information was grouped according to the order, family, genus, and 
species of the organisms against which these insecticides were tested. 
The author now submits an alphabetical list of the species reported on, 
arranged according to order and family. Many conflicting reports were 
received from different observers on the efficacy of derris for the con- 
trol of certain species. In some instances the information was so vague 
that no definite conclusion could be arrived at. Where there is a lack 
of unanimity in this respect, the compiler has attempted to indicate 
the opinion of the greater number of experimenters on the species in- 
volved. 
The fact that a certain species is sensitive to rotenone or the 
rotenoids should not be construed to mean that these materials can be 
used in a practical way for its control. For example, the larva of the 
codling moth is killed by rotenone but, under outdoor conditions, sprays 
and dusts containing rotenone quickly lose their value through decomposi- 
tion and weathering. 
In 193° De Bussy, Van der-Laan, and Diakonoff (Tijdschr. over 
Plantensiekten *+2: 77) compiled a list of about 200 species of insects 
found in the Netherlands, and indicated whether they were sensitive to 
derris dust or derris spray. The list submitted in this publication 
includes fSk species of insects and Acarina found in all parts of the 
world. The susceptibility of each organism, or its lack of suscepti- 
bility, to preparations containing rotenone is indicated by the sign 
"olus or minus. 
l/ The manuscript of this publication was read by Mr. C. F. Muese- 
beck and specialists in his division,** who carefully checked the scien- 
tific .triem^fe., 
2/ Part I, Collembola, Orthoptera, Dermaptera, Odonata, Isoptera, 
Corrodentia, and aallophaga, E-579; Part II, Thysanoptera, E-581; Part 
III, Homoptera, E-593; Part IV, Hemiptora, S-59U; Part V, Anoplura, 
E-598; Part VI, Coleootera, E-0O3; Part VII, Lepidoptera, E-625; Part 
VIII, Hymenoptera, E-63O; Part IX, Diptera, E-652; Part X, Siphonaptcr.- , 
E-654; and Part XI, Acarina, S-655. 
®W 26 1945 
