6o2 NEW JERSEY STATE AGRICULTURAL 



than others and the greatest variation occurred in the relative 

 proportion of the well advanced black scales ; survivors of the 

 first brood. Trees 302 to 355 had a general, though in most 

 places rather thin scattering of white scales and crawling larvae. 

 There was no preceptible injurv to foliage. 



Some correspondence having been had with llie makers of the 

 mixture and a new and supposedly stronger solution received, 

 sprayed trees Nos. 377 to 390 inclusive, with the "Con. Sol." at 

 the rate of i part to 40 parts of water. In other words a mixture 

 which the makers said was stronger, less diluted than that previ- 

 ously applied. 



July 30th, trees 11 and 19 to 24 were a little worse infested 

 than before, the individual trees remaining dissimilar in the 

 amount of infestation. As to trees 302 to 355. the report is that 

 there are a number of live adults and a general, in some places a 

 rather thick scattering of larv?e and whice sets. Trees 377 to 390, 

 only recently sprayed, had the leaves slightly mottled and some- 

 what burned, indicating a more caustic mixture than before; but 

 on the other hand while a great many insects had undoubtedly 

 been killed, there was yet a general if rather thin scattering of 

 larvae and recently set scales on all trees. 



August 13th. the "Con. Sol.", i to 50. stood third in rank of 

 efifectiveness and the same i to 40 stood fourth. Tree 11, which 

 was the first one treated was the best of all, and had only a few 

 scales in any stage. Series 19 to 24 were not much worse than 

 at last reports, but there seemed less difference between them. In 

 the series 302 to 355 also, conditions ha-.l remained practically un- 

 changed, but the report now indicated a great number of speci- 

 mens approaching maturity and which would shortly begin to 

 reproduce. Trees 377 to 390 were the worst of this series ; more 

 scaly than those sprayed with the weaker solution and more 

 ragged in foliage. 



Series 250 to 301 had by this time reached a dangerous con- 

 dition, and to check further development were sprayed with the 

 "Con. Sol." I to 40. Trees 391 to 463, wdiich had not been 

 heretofore sprayed at all. also received a dose of the same kind. 



September 2nd, 6th and 7th all applications previous to those 

 made August i6th, were re-info reed by a spray of "Con. Sol." 

 I to 40, including series 302 to 355. which had previously 

 received the same material, at the rate of i to 50. 



The net result a month later, when I saw the orchard, was that 

 not a tree was in fit condition to go into the winter safely. The 

 lotal effect of all the applications being a bare maintainance of a 



