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Aphids on goldenrod 
A red aphid on goldenrod was not controlled by a dust of equal 
parts of derris and hydrated lime. — Kelsall et al . ( 169 ) in 1926. 
Aphids on head lettuce 
The aphids that could be reached were killed by spraying vdth rote- 
none at l:5,000i It is impossible to reach all the aphids conveniently, 
therefore the results remained incomplete. --DeBussy, et al, (32) in 1935. 
Aphids on hops 
Fryer (108) in 1926 referred to the use of Derrisol in England for 
the control of aphids on hops. 
Aphids on Japanese maple 
The Wageningen Plantenziektenkundigen Dienst (292) in 1933 reported 
that a suspension of rotenone in water (1:5, 000) made by adding an aceton 
solution of rotenone to water, and also derris powder in water, 1:50 
(equivalent to rotenone at 1:2,500), plus 1 percent of soap gave satis- 
factory control of leaf aphids on Japanese maple in Holland. 
Aphids on lotus 
The Japan Seed and Plant Company, Ltd., reported [n,d.] that at 
about 1:190 Derri-Homi killed 100 percent of aphids on lotus at Saitama 
Prefecture, According to the manufacturers, this product contains derris 
extractives and spreading and sticking agents, 
Aphids on nasturtium 
Fulrner ( 113 ) in 1930 wrote that the nasturtium aphid can be effec- 
tively controlled by spraying with derris pov/der, 5 pounds per 100 
imperial gallons. 
Aphids on ornamental cherry 
The Wageningen Plantenziektenkundigen Dienst (292) in 1933 reported 
that a suspension of rotenone in water (1:5,000) made by adding an acetone 
solution of rotenone to water and also derris powder in v/ater, 1:50 
(equivalent to rotenone 1:2, 500) plus 1 percent of soap gave satisfactory 
control of leaf aphids on ornamental cherry in Holland. 
Aphids on ox-eye daisy 
The Wageningen Plantenziektenkundigen Dienst (_292) in 1933 report* 
that- derris powder (2 percent rotenone) when added to 50 parts of 1 per- 
cent soap solution (l part rotenone to 2,500 parts v/ater) and also a sus- 
pension of rotenone in rater (1:5,000) made by adding an acetone solutio: 
of rotenone to water gave satisfactory control or leaf aphids en ox-eye 
daisy in Holland, 
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