-.1 - 
Introctvction 
In r. prrvious pr.pcr, The Sp.rly Histoi-y (1848-1918) of the Use 
of Dcrris ac an Iiisccticido (3?)2/jtho writer reviewed the history of the 
use of dcrris as ar insecticide from IB'l-B to 1913, inclusive, which is 
the period from the time of the first acccant in Englis?^ of the insec- 
ticidal use of derris to the time immedirtely preceding the puhlication 
of the wori: of Mclndoo, Siovers, and Ahbctt, investigators of the 
United States Dep:-'rtnent of Ajjricultujre. The 10-year period 1919-'58 
witnessed gre-at activity in the ez'plcration of the insccticidcal uses of 
derris, Bishopp rjid rssociates wcrlccd out the control of Ky-podorm.a larvae 
in the Dr.cks of cattle "oy the apiolicf.tion of powders, v/ashes, or ointments 
containing derris. Investigators in England cjid Canada published the 
results of tests of derris against m£iny insects. Proprietary insecticides 
of British manufacture that contained derris powder or derris extract 
"became more widely known and received mention in entomological literatiiro. 
However, in this literature no mention is found of rotenone or the other 
active principles of derris. The derris used ty different investigators 
varied v/idely in toxic content, and hence it is not surprising to find 
contradictory statements regarding the value of dcrris for the control of 
certain pests. Derris v.'as not a regular article of comr.ierce in the United 
States. ITo method of chemically evaluating it was Imovm. In view of 
these facts it is not surprising that dcrris did not really come into its 
own until the results of the investigations of chemists on the active 
principles of derris and their analytical determination were puDlished. 
This was not until after 1928. 
In the present paper the writer has endeavored to present an 
account of all v;ork with dorris against s-occific insects that was puhlishcd 
during the 10 years 1919 to 1928, inclusive. Aa nearly as possihlc the 
work of the various investigators is given in chronological order. A 
summary of the 10 years' research is given in tahlcs. Table 1 gives 
information concerning the effectiveness of each dcrris preparation tested 
against each insect, with a reference to the original article. The insects 
in table 1 arc arranged according to family under the appropriate order. 
In table 2 all insecte arc listed alphabet ically according to genus, and 
information is given concerning the common name, the order, and the family 
of each species. In table 3 Is given an alphabetical list of the common 
names of the insects together with the corresponding scientific names. 
It is believed that the reader may readily obtain the information he 
seeks by reference to one or more of these tables. 
Throughout this publication the term "gallon" is -understood to 
mean the standard United States gallon of 231 cubic inches. The gallon 
referred to in British publications is tthc imperial gallon of 277.27384 
cubic inches. 
An imperial gallon equals about 1.2 United States gallons, and 
conversely a United States gallon equals about 0.83 imperial gallon. 
1/ ~ 
Not available for distribution. 
