Experiment 6 - Dudley field (applications on Feb. 28, Mar. 10, 27, Apr. 11, 25, 



1961) 



Naled 1 plus 



phosphamidon l/2 .11 .02 69 .01 99 



Guthion 1 .10 .05 .01 62 .15 96 



Demeton l/2 plus 



parathion 1/2 .10 -oU .03 60 100 



Malathion 2 .2^ .05 31 .15 96 



Menazon (WP) 1 .27 .10 .06 .0k 96 



Untreated check .26 .12 .0U -- 1.1 



L.S.D. 5 percent .12 .07 .03 kO .29 



Experiment 7 - Dudley field power spray (applications on Mar. 3Q; Apr. 12, 



25, 1961) 



Endosulfan 1 .08 .02 92 .10 92 



Parathion l/2 plus 



B. thuringiensis lj .17 .02 .02 85 .lk 88 



Toxaphene 3 plus 



parathion 1/2 .19 .02 Qk .lk 88 



Guthion 1 .18 .03 .02 83 .2k 80 



Toxaphene 3 plus 



demeton l/2 .26 .05 .03 7^ -03 98 



Naled 1 plus 



phosphamidon 1/2 .39 .06 .05 62 .18 85 



Untreated check -- 78 -29 -2U -- 1.21 



L.S.D. 5 percent .20 .06 .09 l6 n.s. 



10 



