. Bulletin of the Department of Agriculture. Agriculture; Agriculture. U. S. Dl PARI Ml N I 01 \'.l:h i I represent an additional percentage of the total. To illustrate thif point, the graph representing the parasitism <-f female beel Koiwai dunng 1921 iiLr. s mai I"- cited. n Julj 14, 35 per â bow these being replaced on the 20th by 15 per cenl of the remainder, the latter m turn being replaced bj per cent of tl *illia japonica ⢠:it Koiwai, Japan, daring 1921: a, parasitism of female beetles; B, parasitism oi beetles; C, proportion of ryps laid upon female l- ⢠remain
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. U. S. Dl PARI Ml N I 01 \'.l:h i I represent an additional percentage of the total. To illustrate thif point, the graph representing the parasitism <-f female beel Koiwai dunng 1921 iiLr. s mai I"- cited. n Julj 14, 35 per â bow these being replaced on the 20th by 15 per cenl of the remainder, the latter m turn being replaced bj per cent of tl *illia japonica ⢠:it Koiwai, Japan, daring 1921: a, parasitism of female beetles; B, parasitism oi beetles; C, proportion of ryps laid upon female l- ⢠remaining od the 26th. Thus, theoretically, the parasitism em was 35 pin- 29 plus 17 per rent, successively, during the period of abundance, totaling approximately 81 per cent of the entire mi. tion. The actual host mortality, however, was Lower than tlu- figure, since the mortality in the early stages <»f the parasite has nt been taken into Pio.'9. -Popillia parasitized by Centeter, in process of packing for Bbipmenl in the United Stat I OLLECTION ami SHIPMENT Very extensive collections (fig. 9) of parasitized beetles were made at Sapporo and Koiwai in 1921 and at the former place only in the following two rears. Two hundred and ninety-six thousand were se- cured during this period. As many as 200 men. women, and children. 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
