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In Florida chlordane ^O-percent emulsion at 1:^00 showed promise, 
but was less effective than BHC, parathion, and DDT emulsion in combat- 
ing these aphids on cabbages. — Kayslip ( 2ll ) . 
Phyllanhis f a<ei (L.), the woolly "beech aphid 
A 50-percent chlordane wettable pov;der at 1 and 2 pounds per 100 
gallons of water proved ineffective. — Kerr ( 2o0 ) . 
Phopalosiphums pseudobrassicae (Davis), the turnip aphid 
A 5-percent chlordane-pyrophyllite dust in laboratory tests killed 
only 1.5 percent of these aphids on kale leaves after Zk hcurs. — Brooks 
and Anderson (J4&) . 
Same as for M. -persicae . — Hayslip ( 211 ) » 
Shopal 3 iphum rufomaculatum (Wilson), the green chrysanthemum aphid 
In tests to determine the fumigant action of chlordane on apterous 
females, air currents had a marked effect on the toxicity. A 60-percent 
solution was tested at dilutions of 0.125 and 0.5 pound actual chlordane 
per 100 gallons. In still air 0.5 pound per 100 gallons caused a mor- 
tality of 37.9 percent to aphids exposed to the vapor; in an air current 
of 3*7 miles per hour the mortality was 35 percent. — Dustan ejt al. ( l2l ) . 
Sipha flav a (Forbes) , the yellow sugarcane aphid 
In Louisiana in 19^7 and 19*+8 chlordane gave nearly perfect con- 
trol.— Dugas et al. (112, 119) . 
Cercopidae 
Philaenus leucophthalmus (L.), the meadow spittlebug 
Five- and 2-percent chlordane dusts at the rate of 20 pounds per 
acre gave almost complete control of spittlebug nymphs on strawberries 
and sweet clover in Wisconsin in 19^7 and were more effective than a 5- 
percent DDT dust. On alfalfa a 5-percent chlordane dust was the most 
effective of all mater ials tested, including hexaethyl tetraphosphate, 
tetraethyl pyrophosphate, DDT, and BHC. — Chamberlin et al. ( 6£) . 
In Michigan in 19^7 mammoth clover dusted with 2-percent chlordane 
plus 3~percent DDT at the rate of 30 pounds per acre had 28 percent of 
the stems infested 7 days after treatment as compared to hZ percent in- 
festation for 5-percent DDT and no infestation in plants treated with 
0.36-percent gamma-BHC dust. — Pedercon and Sherman ( 36l ) . 
Chlordane emulsion and wettable powder at 1 pound of toxicant per 
acre in 19^8 killed about 2/3 of the nymphs, proving less effective than 
it did in the 19^7 tests. --Chamberlin and Medler (£g.) . 
