- 38 - 
In field tests in Virginia in 1948 tr.e application of c hi card an e 
spray (3»75 pounds per 100 gallons of water) to apple trees and to the 
undergrowth and soil beneath the trees did not retard the emergence of 
cicadas. In laboratory tests cicadas in cages were sprayed directly 
with this same chlordane spray. After 24 hcurs 39 percent of the 
cicadas were still normal. — Vfoodside ( 510 ) . 
Coccidae 
Coccus •pseudomagnoliaruc (Kuw.), the citricola scale 
Chlordane was not promising in tests in southern California. — 
Zwart (]J4). 
Parlatoria oleae (Colvee), the olive scale 
A spray of 1 quart chlordane in 100 gallons of water plus 3 pounds 
of 15-percent para.thion applied in November reduced the percentage of 
scale-infested olives from 96 to 67 in 11 months. — Stafford (436) . 
Fseudoccoccus maritimus (Ehrh.) t the grape mealybug 
Chlordane spray (2 pounds of 50-percent wet table powder per 100 
gallons of water) caused 49.8 and 43.6 percent mortality one week after 
applications on May 19 and June 2. — Neiswander ( 34^ ) . 
Delphacidae 
Peregrinus maldis (A3hm.), the corn lantern fly 
A 5-percent chlordane-pyrophyllite dust, applied 3 times to a total 
of 28 1/4 pounds per acre, gave a control of 62 percent of the flies. — 
Brooks and Anderson ( 48 ) . 
Psyllidae 
Psylla pvricola Foerst., the pear psylla 
Chlordane emulsion concentrate (50-percent), 16 ounces to 100 gal- 
lons of water, was comparatively ineffective in a single test. On pear 
trees in New York the number of nymphs per spur two days after applica- 
tion of this spray was 14.3 as compared to 28.2 on untreated trees and 
none on trees treated with tetraethyl pyrophosphate, 4 ounces plus 2 
ounces of spreader per 100 gallons of water. — Hamilton ( 201 ) . 
Chlordane spray (l and 1.5 pounds per 100 gallons of water) had an 
initial efficiency of 6l.5 and 69.3 percent, whereas the best material 
tested, T^arathion, at 1 1/4 ounces per 100 gallons had an efficiency of 
99 »5 percent. — Carlson and Newcomer (65) . 
