Tenth Annual Meeting 



87 



There are other factors that enter into this discussion. 

 Several species of lady heetles feed upon the scale, as seen in 

 Fig. 10. Many trees in nature have been practically freed 

 from the scale by a fungus, but experiments have shown that 

 up to the present time we cannot establish with any certainty 

 these fungous diseases in the northern states. We attempted 

 it in Maryland, along the Eastern Shore, but in all cases we 



cc 



FlG. 10. — The minute, black ladybug, Pentilia misella; a, beetle; b, larva; 

 f, pupa; d, blossom end Of pear, showing scales with larvs and pups of Pen- 

 tilia. with the former feeding upon them, and the pupae of Pentilia attached 

 within the calyx — all greatly enlarged. (After Howard and Marlatt, Bulletin 

 ?, new series, Div. Ent., U. S. Dept. \zt.^ 



failed. We tried to establish it in Illinois, and even in far 

 northern Canada, and in the southern part of Canada, in the 

 fruit belt, but up to this time we have not had any beneficial 

 effect from it. 



Now we come down to the real practical side of it. In 

 considering this question we have to take this fact into account, 

 and that is, what will do in Georgia will not do in Connecti- 

 cut ; and what may be applicable in Connecticut for the treat- 

 ment of one orchard mav not answer for another; or be 



