STATE HOKTICULTUEAL SOCIETY. 27 



roller and perhaps the skeletouizer, but as their work was very 

 slight this season, I received no appreciable benefit from it. 



Of the leaf roller there seemed to be no second crop. 



Early in the season there were about as many as usual, and 1 

 fully expected we should have to tight them all summer; but in the 

 fall scarcely any of them could be found. In that respect our trees 

 being unusually clean and nice. 



This was not due to my spraying with London Purple, as there 

 were no more signs of the roller on the trees that had not been 

 sprayed at all, than upon those which I had sprayed twice. The 

 same was the case in my neighborhood, where orchards were sprayed 

 for the codling moth. As far as my knowledge extends, the fruit 

 was as sound in the orchards that were not spra3'ed, as in those that 

 were attended to faithfully. 



My explanation of this is; that for some reason the second crop 

 of the apple worm failed to put in an appearance, and the result was 

 an unusually clean crop of fruit. 



However, I had one serious trouble, that checked the growth of 

 my trees to a considerable extent, early in the summer. I refer to 

 the leaf hopper. This insect affected the growth of my trees more 

 than anything else, and its effect was especially noticeable on the 

 younger ones. Old and well established trees not seeming to be 

 injured by them. 



So far as I know, no practical and effective remedy for this pest 

 has been found. 



The blight of certain varieties has damaged the orchard trees 

 in some localities to a considerable extent, but still not as seriously 

 as in former years. In this district, the nursery trees have not been 

 much affected by it. In our orchards, the Willow and some of the 

 crabs seem to have suffered the most. 



My observations would not lead me to consider that high culti- 

 vation is likely to increase the liability of the apple to blight. 

 Some of the worst cases of blight which have come to my notice, 

 have occurred on land of ordinary fertility, that had never been 

 highlv manured or fertilized in any way. 



While on a trip through Central and Western Iowa this fall, I 

 found a great deal of this trouble in most of the nurseries in certain 

 localities, and on some varieties it was very bad. The so-called 

 Russian varieties seem to be the most easily affected by this trouble. 

 No very effectual remedy has been found. Some have tried cutting 

 out the diseased portion. To be at all effectual, I think this should 

 be done as soon as the blight appears, and the diseased portion 

 entirely removed, or it will avail but little in checking the disease. 



This was the year for the periodical return of the Cicada? or 

 seventeen-year locusts. They made their appearance in a large por- 

 tion of the Northern District. On old trees and where there were 



