36 



HIBERNATION OF THE COTTON BOLL WEEVIL. 



Table XIII. — Summary of hibernation experiments in boxes at Dallas. Calvert, and 

 Victoria. Tex., in 1905-6. 



DALLAS. 



When 



put in. 



Kind of rubbish. 



(Kit- 

 doors 

 or in- 

 doors. 



Number of wee- 



, r " „., vils found— iw. 

 vils \\ hen ex- , , 



put amined. -: centage 



Alive. Dead 



alive. 



Remarks. 



1905. 

 Nov. 1 



Do... 



Do... 



Do... 

 Nov. 17 



Do... 

 Nov. IS 

 Nov. 26 



Do... 

 Dec. 4 

 Dee. 11 



Do... 

 Dec. 15 



Corn shucks, g 



cotton leaves. 



Cotton leaves. . . 



do 



Sack of cotton seed.. 

 Grass, leaves, rubbish . 

 do 



Cotton seed 



Only j:rass 



Grass, seed, cotton. . 



Cotton seed 



Corn shucks, leaves. . 



I do 



Cotton seed 



Total. 



Out... 



In 



In 



In 



Out... 



In 



In 



Out... 



In 



In 



Out. . . 



In 



In 



/Out... 

 \In 



100 



100 

 100 

 100 

 100 

 100 

 200 

 200 

 200 

 200 

 200 

 200 

 900 



2,100 



1906. 

 Apr. 27 



..do..... 

 ..do..... 

 Apr. 28 

 Feb. 19 

 ..do.... 

 Apr. 30 

 Mav 1 

 ..do..... 

 Mav 3 

 ..do..... 

 Mav 1 

 Mav 4 



92 



64 

 92 

 82 

 ^7 

 160 

 165 

 165 

 181 

 140 

 195 

 y,2 



479 

 1,886 



0.5 

 0.0 



In chicken house. 



In seed house. 

 Do. 



Do. 

 Do. 



Do. 



300 in each of 3 saeks. 



CALVERT. 



1905. 

 Nov. 7 



Do.. 



Nov. 27 



Do... 



grass, 



Corn shucks, 

 cotton. 



do 



do 



do 



Total. 



In 



Out... 



In 



Out... 



/Out... 

 \In 



100 



94 

 205 

 200 



1906. 

 Apr 18 



...do 



...do 



Apr. 19 







1 

 

 40 



98 



45 

 205 

 145 







1 

 

 20 



294 

 305 



41 







190 

 303 



14.0 

 0.0 







VICTORIA. 



1905. 

 Nov. 5 

 Nov. 7 



Do... 

 Nov. 13 



Do... 

 Nov. 30 



Do... 

 Dec. 11 



Do... 



Mixed. 

 ....do. 

 ....do. 

 ....do. 

 ....do. 

 ....do. 

 ....do. 

 ....do. 

 ....do. 



Out.. 

 Out. . 

 In.... 

 Out.. 

 In.... 

 Out.. 

 In.... 

 Out.. 

 In.... 



Total. 



I/Out. 

 tin... 



Total of 3 local- [Out. 

 ities \In... 



100 



Kio 

 UK, 



11 10 



100 

 100 

 LOO 



lull 



11.' 



500 

 412 



1,394 

 2.S17 



1906. 

 Apr. 6 

 Apr. 7 



...do 



Apr. 4 

 Apr. 5 



...do 



..do 



Apr. 7 

 ..do 



43 

 23 

 73 

 53 

 97 

 39 

 94 

 51 

 100 



2 

 1 

 

 4 

 

 1 

 

 3 

 3.57 



209 



364 .97 



878 

 2. 553 



3.9 



.14 



111 the small-cage experiments of 1905-6 but three localities were 

 tested. In the 26 experiments were placed 4.211 weevils, of which 

 number 1,394 were out of doors and 2,817 indoors. In only one 

 cage did weevils survive within doors, and that was at Victoria, 

 where it would seem that such protection was least needed. The 

 two most striking results were the small survival at Dallas and the 

 remarkably large survival in one of the outdoor experiments at 

 Calvert. In the outdoor tests an average of 3.9 per cent survived, 



