THE WOOLLY WHITE-FLY. 71 



Aschersonia aleyrodis, in Cuba, and Mr. W. L. Tower, entomologist of 



the Porto Rican Experiment Station, reports that in Porto Rico it 

 is held in check by fungi (undetermined . 



REMEDIES. 



So far as known to the writer no remedial measures have been 

 adopted against this pest up to the present time. Its recent dis- 

 covery lias not made it possible for experiments leading to its con- 

 trol to be concluded although such experiments are now in prog: 

 From present indications it seems probable that this white-fly will 

 be more easily controlled by fumigation than by spraying, inasmuch 

 as when nearly mature it is very well protected from spray liquids 

 by the secretions mentioned above. Present indications are that 

 during the early larval instars it is as well controlled by spraying 

 as are the citrus and the spotted-wing white-flies, with which it is. 

 found associated. 



7893G — Bull. 04 — 11 6 



