6U XEW JEESEY AGEICULTUEAL COLLEGE 



In the Moorestown district of Burlington county, and in the im- 

 mediately adjoining portion of Camden connty, over '20.000 trees, 

 mostly apple and pear, had been sprayed with the K.-L.. containing 

 50 per cent, kerosene. Examined June 6th and July 10th, the results 

 were most disappointing. Larvae were swarming, recent sets were 

 numerous and some of the fruit was already entirely unsalable. The 

 orchards really were in much worse condition, despite the application, 

 than they had been during the previous summer. Professor Close went 

 over this same territory later, and claims that the poor results were 

 due to the fact that the kerosene and lime were not properly combined; 

 the mixture was made according to formula, but .not churned by 

 pumping back into the spraying tank. It was admitted by some of 

 the growers that this was not done, but all of them claimed that they 

 had an apparently even mixture, without obvious free oil. Certainly 

 the results seemed uniform enough to point to a very uniform mixture. 



At a number of other places similar imperfect results were noted, 

 and in some cases tJiere seemed to have been a difficulty in getting a 

 good mixture. It seems also as though there might have been some 

 difference in the character of the limoid, because some claimed that 

 they always had a troublesome sediment, and, in two cases, where lots 

 were purchased at. dilferent times, one lot was entirely satisfactory and 

 the other showed the sediment. 



The other side of the shield was seen in Mercer county, where an 

 orchard of peach and pear, with a few apples and phuns, was 

 almost completely cleared of infestation. In tliis locality 1,000 gal- 

 lons of kerosene and a carload of limoid was used, with results that 

 were, on the whole, very satisfactoiy. In some places qitite a bit of 

 scale remained, mostly due to incomplete work, and in almost all 

 cases some young and recent sets could be found, especially on apple 

 fruits, but nowhere was there anything like the failure fotind in the 

 Moorestown region. 



The sprayed trees in Delaware were mostly on the orchard of ^Mr. 

 A. X. B^o^^■n,~ of Wyoming, and were chiefly peach. These were 

 treated under the personal supervision of Professor Close, and the 

 result was about like that in ]*Iercer county — there was some breed- 

 ing apparent on every tree, large and small, but very little. Later 

 in the season Mr. Brown informed me that, as compared with the 

 lime and sulphur and soluble oil preparation, the K.-L. was decidedly 

 inferior. 



