64 



that this colony will survive the winter and thus add another benefi- 

 cial insect to our present list. 



Although the woolly aphis (Schizoneura lanigera) is a common 

 insect throughout the State and at times attacks the roots of nursery 

 stock so as to render it unsalable, it has not, so far as is known to the 

 writer, caused serious injury to orchards. While inspecting an apple 

 orchard near Thivener, in Gallia County, my assistants, Messrs. H. J. 

 Speaker and G. A. Runner, found several trees in a 12-year-old 

 orchard that were in a dying condition. About twenty of these trees 

 were growing on a hillside and three of them were nearly dead. 

 They proved to be badly infested with this insect, both above and 

 below the ground. A photograph of the roots of one of these trees 

 that was removed shows that this pest had practically killed the tree. 

 Mr. Haffelt, the owner, informs me that the trees in this orchard were 

 of the Rome Beauty and Ben Davis varieties, and had been planted 

 about twelve years. Doubtless they were infested at the time of set- 

 ting. Three small crops of fruit had been picked from this orchard, 

 but it is probable that none of the trees will recover from the injuries 

 caused by this insect. 



The grape root- worm (Fidia viticida) has caused considerable dam- 

 age to the vineyards in northern Ohio. The foliage showed abundant 

 indications of the work of the beetles, but I am informed that where 

 thorough cultivation and spraying was practiced the injury doue by 

 the insect was less than in previous years. The fact remains, how- 

 ever, that many acres of vines have been pulled out and the land 

 planted to other crops on account of the expense of fighting this 

 insect and the grape rot, which is prevalent in this district. 



The grape berry moth (Eudemis botra?ia) has been particularly 

 abundant and destructive this year. Mr. T. J. Clymonts, of Cleve- 

 land, who controls large vineyards near Euclid, Ohio, informs me of 

 the destruction of the entire crop on 16 acres of Catawba vines. The 

 berries were so badly infested that they were unfit for use in making 

 wine. 



The oyster-shell bark-louse (Lepidosaplies ulmi) is present in 

 destructive and increasing numbers in northern Ohio, particularly in 

 Cleveland and vicinity. Apple, poplar, and willow trees and lilac 

 bushes are commonly found completely incrusted with the scales and 

 in a dying condition. Failure to apply contact insecticides at the 

 time when the lice are hatching in the spring is largely responsible 

 for the increase. It is a noticeable fact that this is the only section 

 in the State where this species is causing any considerable amount of 

 damage. 



The willow curculio (Cryptorhynchus lapathi) has continued to 

 spread, and was found this year in Painesville, several miles west of 

 any point previously noted. 



