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i:;t30duction 
Thin is the ninth in a series of papers designed to review all 
available information on the insect! cidal uses of rotenone and the 
rotenoids. Parts I to VIII have reviewed tests with derris, cube, 
timbo, Tephrosia, wiundulea, and their constituents on members of the 
Collembola, Orthoptera, Dermantera, Cdonata, Isoptera, Corrodentia, 
i.iallophaga, Thysanoptera, Homoptera, Hemiptera, Anoplura, Coleoptera, 
Lepidoptera, end Hymenoptera. Apparently no tests with the rotenone 
plants on Thysanura, Sphemeroptera, or plecoptera have been .recorded. 
Part IX, the present paper, reviews the tests that have been made on 
Diptera. 
DIPTERA 
Agromyzidae 
Agrcnpfza phaseoli Coq. (= Melanagromyza phaseoli Coq.), bean fly; 
French bean miner 
Mathieu ( 201 ) in 1920 reported the control of this soecies attack- 
ing young beans, with derris. 
A trial of tuba was made on a field of 8 beds, 66 feet 
Ions, with 1,055 seeds of lima bean (Small Sieva) on October 
28, 1919. Ten ounces of tuba root were well pounded in a 
wooden mortar, the juice was thoroughly expressed, and the 
fiber' exhausted in 20 imperial gallons of water. Tuba water 
was then applied to each young plant at the rate of a ciga- 
rette tin full to 4 plants, morning and evening, for 15 days, 
until the plants were sufficiently established to be past all 
danger, which is only present during the first stage of their 
existence, when the stem is tender. Only 16 seeds failed to 
germinate, and of the 1,040 plants that came up, not one has 
died. Today the plot is showing the most vigorous growth, a 
living testimony to the potency of the tuba-root as a plant 
-insect killer. 
Yen der Soot ( 120 ) in 1930 reported that sprinkling the necks of 
the roots of plants of katjang djogo and. kratok "ith e 2 percent derris 
extract was valueless for control in Java, 
Van der Vecht ( 302 ) of Buitenzor.^, Java, in 1936 reported that 
derris was ineffective-. 
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