. Annual report. Entomological Society of Ontario; Insect pests; Insects. 98 REPORT OF THE ENTOMOLOGICAL TABLE 2 DDT-CONTENT OF MILK AS A RESULT OF BARN SPRAYING Sampling Time DDT Sampling Time DDT (Days After Spraying) () (Days After Spraying) () -21* 0 Third Spraying j, August 9th, 1950. -15* 0 r .04 - 8* 0 2 .03 3 .03 First Spraying June nth, 1950. 14 .03 1 .05 27 .01 2 .06 34 .01** 3 .06 7 .03 Fourth Spraying, September \Uh, 1950. 2§#* .03 1 .06 2 .06 'Second Sprayin g> Jub \2th, 1950. 3 .05 1 .06 7 .00 2 .05 3 .05 12 .05 21 .01 27** .02 Spraying tjties (dms>. FIGURE 2. -
. Annual report. Entomological Society of Ontario; Insect pests; Insects. 98 REPORT OF THE ENTOMOLOGICAL TABLE 2 DDT-CONTENT OF MILK AS A RESULT OF BARN SPRAYING Sampling Time DDT Sampling Time DDT (Days After Spraying) () (Days After Spraying) () -21* 0 Third Spraying j, August 9th, 1950. -15* 0 r .04 - 8* 0 2 .03 3 .03 First Spraying June nth, 1950. 14 .03 1 .05 27 .01 2 .06 34 .01** 3 .06 7 .03 Fourth Spraying, September \Uh, 1950. 2§#* .03 1 .06 2 .06 'Second Sprayin g> Jub \2th, 1950. 3 .05 1 .06 7 .00 2 .05 3 .05 12 .05 21 .01 27** .02 Spraying tjties (dms>. FIGURE 2. - DDT-CONTENT OF MILK SAMPLES (BARN SPRAYING) * Samples taken before first spraying. ** Samples taken 1 day previous to next Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of Ontario; Ontario. Dept. of Agriculture. Toronto, The Society
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
