DEPARTMENT OF ENTOMOLOGY. 215 



that there is sometimes clanger in applying this substance to 

 young and smooth barked trees, from the material penetrat- 

 ing the inner bark and killing the growing cells. Conse- 

 quently I would recommend, in the case of young trees 

 as well as those older which have a smooth bark that if Rau- 

 penleim be applied it be placed on strips of thick paper 

 tacked to the trees. Even in the case of bearing apple trees 

 this would prol)ably be the safer method, and it should always 

 be adopted for peach trees, if not for pear trees also. After 

 the Raupenleim has been on some weeks the surface hardens 

 into a crust, and it is advisable to scrape off this crust after 

 the danger from canker worms is past. Too much of the 

 rough bark should not be scraped off of the older trees to 

 which the band of Eaupenleim is to be applied, unless paper 

 is to be used. 



Less than the usual amount of injury was done this season 

 by the apple worm, the larva of the codling moth (Carpo- 

 capsa pomonella). This immunity was probably due in 

 part at least to the small apple crop of the last year. There 

 has also been but little complaint regarding the apple mag- 

 got (Trypeta pomonella), or Railroad Worm. The squash 

 BUG {Anasa tristis), striped cucumber beetle (Diabrotica 

 viitata), and various flea beetles have been about as destruc- 

 tive as usual, while the sugar maple borer {Glycohius speci- 

 osus), treated of in Bulletin No. 33 of this station, is continu- 

 ing its destructive work in many parts of the state. Little 

 injury, however, has been done by the v^hite marked tus- 

 sock moth {Orgyia leucostigma) discussed in the same bulle- 

 tin. The pear slug {Eriocampoides limacina) was somewhat 

 destructive in the southern part of the state. The horn fly 

 {Haematohia serrata), or Texas fly, has been reported as very 



troublesome at Franklin Falls. 



Clarence M. Weed, 



Entomologist. 



