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Aphids on peanut 
Miller ( 201 ) in 1935 tried aphids or. peanut as test insects in deter- 
mining the insecticidal value of various species of derris but they proved 
too susceptible and difficult to handle: 100-percent mortality was obtained 
each time, not only with the insecticide but also with the control fluid, 
Aphids on pear 
Neoton, 110 gm. plus 450 gm. of soap in 40 imperial gallons of 
water, killed 100 percent. — Institute Physical and Chemical Research ( 162) 
in 1927. 
Aphids on pear were controlled by a rotenone spray 1:5,000 plus 
0.1 percent Agral I ,— Wareningen Plantenziektenkundigen Dienst ( 295 ) in 193' 
Aphids on plum 
At Saitama Prefecture, Japan, Derri-Homi at about 1:476 killed 100 
percent of aphids on plum trees, according to the Japan Seed and Plant 
Company, Ltd, [n.d.]. 
Neoton, 1 pound in 60 imperial gallons of water, killed 100 percent; 
1 pound in 100 gallons killed 99,1 percent. — Institute Physical and 
Chemical Research ( 162 ) in 1927. 
Aphids on plum were controlled by a rotenone spray 1:5,000 plus 
0,1 percent Agral I.--Wageningen Plantenziektenkundigen Dienst (295) in 
1934. 
Aphids on raspberries 
Kearns and fc-arsh ( 182 ) in 1937 reported that derris spray (0.004 
percent rotenone) is preferable to derris dust (0.18 percent rotenone), 
as it provides a control for aphids on raspberry as well as for the 
raspberry beetle, 
Aphids on rose 
The Saitama Prefecture, Japan, Experiment Station reported that at 
about 1:238 Derri-Homi killed 100 percent of aphids on rose tree. — Japan 
Seed and Plant Company, Ltd., in advertising literature [n.d.], 
Rosebush aphids were quickly killed by a spray of a commercial 
derris product [probably Neoton] .--Anonymous (l) in 1927, 
Cory (54) in 1P38 issued a schedule of treatments for the control 
of rose pests. Rotenone dust is used for the control of aphids but is not 
so effective as nicotine dust. 
Hamilton ( 156 ) in 1938 reported cube find derris powders (4 percent 
rotenone and 16 to 18 percent total extractives) applied as a spray at 
the rate of 4 pounds per 100 gallons, with the addition of 4 pounds of 
rosin- residue emulsion, gave a good kill of aphids on roses. 
