Sole, 
None of the spray materials proved highly satisfactory. The 1 per= 
‘ cent miscible oil applied as an ovicide gave good. control where three 
a plications were made: it is not practical, however, to make this 
number of applications commercially. Leboratory tests with the miscible 
oil at a dilution of 1 to 400 on borer eggs gave 100 percent control, 
but it was not possible to spray all of the eggs in the field because 
of their inaccessible location on the corn plants. 
Dusts have given more promise of borer control than have the sprays. 
Barium fluosilicate has been superior to the other materials tried, 
with the exception of derris, which as yet has been tried in only a 
preliminary way. Talc and hydrated lime have proved to be satisfactory 
carriers. The talc was slightly superior to the hydrated lime. Bighty 
percent barium fluosilicate dust (commercial product) gave the highest 
percentaze of control, although strengths of 30 percent have resulted 
in satisfactory kills. The addition of small quantities of engine oil 
to two of the 30 percent barium fluosilicate dusts resulted in in- 
creased cfficien 
COTTON INSECTS 
Boil! weevil ip hibernation in Sparish moss.--The ae fall Spanish 
moss examinations ns Dy verious members of this division to determine the 
nunber of boll weevils entering hibernation were completed on December 
8 and have been summarized by R. (. Gaines of Tallulah, La. The re- 
cords for this fall include examinations from 39 points in le locali- 
ties in icuisiana, Alabama, Georgia, ahd’ South Carolina and are shown 
in the following table tor cether with previous records for comparison, 

- weevils. per. ton of moss: |e 



Miiecslity. i. Ste ts croseot 1981: 1926219293 31930219313 1952: 1933. 1932: 1933 
Tallulah, Le. a ce op ae - 280: aha: 21: 20: 189; 493 72 S81: 365 
Southern La, a ae he ee en 58: 192: 357: 6691 L003, 125: 115f : 510: etalk 
Pomcn Caroling. ..... etd «ates 52: M611, 52% 768: 2 ees 175; 172: 30: 78 
. AR Ra rere 39: 359: 220: a18: 170: 57h 30% S45: 28 
(0 5S A nn cE EE Lt Shall peta Lis: 55: 195: 343: 13ie . 147: 97 

Ce ee 
