14 . PARASITES OF THE COTTON BOLL WEEVIL. 
squares, examined. A correct view of the monthly variation may be 
obtained by an examination of the complete tables of observations, 
which are given on succeeding pages. It will be noticed in that con- 
nection that there is no graduated seasonal wave of parasitism. 
Other and still unknown factors enter into the problem. 
The following summary also discloses the fact that hanging forms 
provide conditions superior to those afforded by fallen forms, and 
that squares are more favorable than bolls. 
Finally, it appears by comparison with the table of results for pre- 
vious years that there has been a gain in the total percentage of 
parasitism as well as in the two classes of forms. 
Taste I11.—Percentage of parasitism of the boll weevil, by months, in 1906. 
Hanging Hanging 
Fallen squares. squares. Fallen bolls- isis. Total. 
Montl sleet giual léle alee = alee 
= aaltepet MT ae ey le | eee later hae re a heer lop hdl oe 
BB es [me |” Sey cada ROE, SMa eS eg) Pee eer aes an 
oe A pete aes Ea aes ce sae ete a alleacs 2 a 5 
mo |u| & nm || & a || A | m |A| a D a | A 
wars | as dae 3A. pea RSS te Peel ute 
1906 
Dts 5 tas eee .| 3,881} 118} 3.08} (2) |@| @ | @ |@| @] @ |@! © | 3,831] 118) 3.08 
nly Aare eee. a 4,621| 210 4.54| 247) 76] 30.76] 169] 0] 0.00/ 22] 0! 0.00| 5,059 286) 5.65 
AUS te soon eee 10, 342} 174! 1.68] 2,973) 348] 11.70] 2,490) 20) .80| 2,925) 192) 6.54/18, 730] 734} 3.91 
September... .... 5,665} 286) 5.04] 1,883) 117] 6.26] 1,591) 23) 1.44] 1,140| 67| 5.87|10,279| 493) 4.79 
October cere: ...| 347] 8} 2.30) 20) 0} 0.00] 57] 1) 1.75) 860) 49) 5.69) 1,284) 58) 4.51 
| | | | 
Entire season. ./24,806| 796) 3.20) 5, 123 541| 10.56| 4,307| 44) 1.02| 4,947] 308| 6.22/39, 183] 1,689) 4.31 
a No records made. 
The observations for June were made only at Victoria; those for 
October were made at Dallas for hanging forms and at Mineola for 
fallen forms. 
Owing to the extensiveness of the tables the figures are consider- 
ably condensed, but still retain the value of their records. Numerous 
cases of high parasitism were found, of which the following may be 
cited as notable examples: 
Number of Per cent 
stages. parasitized. 
Fallen squares: 
Roosevelt,-Tex.,¢ September 24... 22 ash .24.2 5. ee nee eee 69 14.4 
Brownsville, @exs¢ September 62) 22-55. ere ee eee 1, 147 12.4 
Hanging squares: 
Waco, Tex. dully 2o..5a2 28. 22sec. bee nes See eee aS 99 52.6 
Waco; Tex.; September 20.22. 1:24. ese eee ee 109 23.8 
Cuero, ‘Tex. August 3,-2.6 222s. ae te eee eee 347 74 ee} 
Fallen bolls: 
Corsicana, Tex. -Septentber 18: 22a: ener ae ee en eee 34 rays!) 
Junction; “Tex. Sepvember 242 asus aye oe ae oe ii 5.8 
Hanging bolls: 
Marshall Tex., (August 22 .:22akece ihe ao kee hare ene tee 52 13.5 
Trinity; Dexs, Ampust) see 5 8228 oe ee eee 142 12.0 
Waco; @ex.,; September 20s... geet oe eee eee een 303 11.8 
@ In both of these localities fallen squares would naturally be dry. 
