14 ~ PROLIFERATION IN CONTROL OF BOLL WEEVIL. 
average increase in mortality apparently due to the proliferation 
varies only between 18.1 per cent for Shine and 19.1 per cent for 
King. It appears that the ‘‘normal mortality,” due to other causes 
than proliferation, varies much more widely in different localities and 
seasons than does the increase in mortality attributable to the 
presence of proliferation. 
OBSERVATIONS ON BOLLS. 
Before drawing any general conclusion from Table ILI the similar 
records of examinations of bolls should be considered. The same — 
varieties and localities are used as in Table III, the only change being 
= e : . . . = ¥ 
the inclusion of the examination of King bolls made at Victoria, Tex. 
in 1908. i 
TasLE IV.—Comparison of proliferation in King and Shine bolls in different seasons and 
localities. ; 
Locks with proliferation. | 
Total |) ‘Lota 4 
Variety and locality.| Date. | bolls ex- | locks ex- Percent | Weevil | Weevil Eel ee : 
amined. |} amined. | Number. ; stages | stages 8 MS 
| of total. | “alive Resid found 
7 : dead. s 
a 
KING. & 
1905. J 
Wi@wOmby Nee seessee Oct. 14 | 620 2, 666 1,398 52.4 53 50 48.5 3 
: 1904. | hd 
WietOnia te bexee aes = Sept. 5 | 200 865 417 48.2 13 2 13.3 
1D) Opes tees Since Oct | 198 | 843 468 55.5 14 4 22.2 ry 
1905. ne 
Calliventilexcss 2222" Sept. 25 80 340 176 51.7 30 8 21.0 
SHINE. . 
CAlventawle xcs ee e| Sept. 25 | 91 398 234 58.8 Slelac 21 36.2 ih 
San Antonio, Tex..-.| Sept. 27 156 | 656 422 64.3 189 69 26.7 
Totals and ay- | | : 
CIA ESS ene ale Se ee ee 1, 345 | 5, 768 3,115 a 54.0 336 154 a31.4 — 
te ee a Re f | : 
ape : : Percent Locks with feeding 
Locks without proliferation. Ee all punctures only. 
dead 
MTC; ener 5 Per | stages Bre 
Variety and locality.) Date. | | Per | Weevil| Weevil | cent ofjin locks| Wath) || ts) ee ome 
per, Cent of| stages | stages | stages | with | prolif-| | oli | prolif- 
~~ * | total.| alive. | dead. | found | prolif- eration. seinen eae 
dead. jeration. ; 5 
KING. 
1903. 
Wictoniay Mex 2-225 Oct. 14.1. 268 47.6 34 1 24.4 82.0) le a2. Ac) Sac ees Soe 
1904. | 
IDO Apes see ter es Sept. 5] 448] 51.8 0 0 0.0 | 100.0 : 14 5 73.7 
DXO) 2 Ae arse mare Oct. 1 375 | 44.5 8 1 Hi sil 80.0 56 27 67.5 
1905. | | 
Calvert, Mex 2255.2. - Sept. 25 | 164 | 48.3 a 1 12.5 53.3 123 32 79.4 
SHINE. | | | 
| 
@alvert, Tex;...2.... Sept: 25) elG4a\) 7412 7 0 0.0 75.0 159 22 88.0 
San Antonio, Tex ...| Sept. 27.| 234] 35.7 8 1 iil y8.6 164 65 | 71.6 
Totals and ay- | | ; 
CraAcese ae eeee Gees Oe 2,653 | a 46.0 64 14 | 218.0 | 291.7 | 516 151 | @77.4 
a Weighted average. 
