ey 
BEE CULTURE 
Warren Whitcomb, who is engaged in wax moth studies at Baton Rouge, 
La., states: "Preliminary tests show that sodium fluosilicate incorpo- 
rated into beeswax in the proportion of 1-to-50 is not effective on 
larvae of the wax moth, Galleria mellonella L., except after long per-— 
iods. Potassium fluoaluminate in the same proportion kills quickly." 
Everett Oertel and John D. Mizelle report on egg tubule studies 
at Baton Rouge: "Ovaries from queens whose body measurements are known 
are dissected and sectioned, and the number of egg tubules is determined." 
He finds "that there is a significant difference in the number of egg 
tubules in different lots of queen bees obtained from queen breeders. 
There is also a significant difference between different lots of virgin 
queens. The virgin queens are from different breeding queens. This indi- 
cates that by selection and controlled mating the number of egg tubules 
in the queen bees' ovaries may be increased." 
FRUIT AND SHADE TREE INSECTS 
Correction: The control experiments against the hickory shuckworm 
reported on page 5 of the December Monthly Letter should be credited to 
by Shy Neen he 
Howard Baker, Shreveport, La., reports that in carrying out exper— 
iments aiming at the control of the obscure scale (Chrysomphalus obscurus 
Comst.) on pecan, examination of samples "indicates that the percentage 
of dead is fairly uniform on the older wood attacked, no matter what the 
intensity of the infestation. * * * it is believed that counts mademte 
determine the effectiveness of any spray in controlling this scale should 
be confined for the most part to wood over three years old. * * * It was 
noted that the females far outnumber the males on all agesof wood but 
that the ratio decreases on the younger, newer woced. It was noted also 
that most of the females on the older wood develop under old scale covers 
and, inasmuch as the major portion of obscure-scale infestation is on 
the older wood, this is the figure in which we are most interested from 
a control standpoint. It was further noted that only a very small pro- 
portion of the males seek the protection of old scale covers for develop— 
ment, but that on wood of any age they tend to develop on the open 
Side unprotected by the old covers. * * * It was noted * * * that the 
percentage of dead is considerably less for that portion of the scale 
population settling under old scale covers, as compared to the portion ~ 
settling outside," and "that the percentage of dead is practically the 
Same, no matter which side of the tree the samples were taken from." 
E. H. Siegler, Takoma Park, Md., reports that, "A few larvae of 
the lesser chestnut weevil (Curculio auriger Casey) issued during Jan- 
uary from the chestnuts obtained from our experimental spray plants. lo~ 
cated at Fairfax, Va. Owing to the great abundance of the pest in 
