Te :ae 
tranychua cltrl (McG.), the citrus red nite 
In laboratory tests tha 2U-hour median lethal concentration of chlor- 
dane to the mite was 1,0 percent. — Metcalf ( 32^ ) . 
Tetr any chug bloaculatus Harvey, the two-epotted spider mite 
Dusts containing 2 or 3 percent of chlordane were less effective than 
containing 5 percent of azobenzene or 0.5 percent of parathion in con- 
trolling the two-spotted mite on lima "beans, also chlordane sprays of 1 or 
2 pounds of 20-percent wettaole powder per 100 gallons of water were less 
effective than sprays of toxaphene, benzene hexachloride, azobenzene, and 
hexaethyl tetraphosphate. — Huckett ( 229 / . 
A spray of chlordane 50-percent wettable powder (0.125 percent chlor- 
dane) was applied to soybean plants which were then infested with mites. 
After 19 days the number of live mites on the bean foliage was about the 
same as in the test where 0.125 percent DDT was applied. The parathion 
sprayed soybeans showed the lowest populations of mites and eggs at the end 
i tests.— Vingo and Thomas (502). 
Tetr any chug pacifjcus McG., the Pacific mite 
Chlordane at 0.5 pound of 50-percent emulsion for 100 gallons of 
water controlled Pacific mites well until the end of June, but after that, 
although the trees were sprayed seven times altogether, control was poor. 
These tests were made at Yakima, Washington in 19^7 • — Newcomer and Dean 
Tetranychus spp. 
Eed spider infestations on cotton developed in some cases where a 
dust containing 3 percent of chlordane and 3 percent of DIT was used. 
Against the red spider 10-percent chlordane was more effective than 
sulfur . — Bishopp (J2) . 
The red spider on cotton is not controlled by chlordane. — Harned ( ZOO . 
« 
In the state of Washington in 19^+7 chlordane proved relatively ineff^c- 
Lgainst mites, but controlled the woolly aphid to some extent. It dees 
not seem to have a place in the orchard spray program. — Newcomer ( 2k5) • 
Trombiculidae 
a (Eutromblcula) jpJLr 
(Eutrombicula) alfreddu^esi (Oud.), the chigger 
Applied as an emulsion, chlordane at 8, 4, and 2 pounds per acre gave 
