THE GYPSY MOTH 9o 



The caterpillars often crawl upon vehicles standing in an 

 infested spot and by this means, also, are carried from one 

 place to another. ' ' 



The writer has no doubt that practically all of the infes- 

 tations of gypsy moth in New Hampshire have been intro- 

 duced by automobiles, as they are practically the only 

 vehicles, other than railroad cars, coming directly from the 

 badly infested region of Massachusetts, and the infestations 

 are found along the main roads and not near the railroads. 

 Indeed, one case has come to our attention in which the 

 owner of an automobile coming from Maiden, Mass., 

 removed a half dozen caterpillars from his machine upon 

 arriving at Greenland, N. H., which were believed to be, 

 and doubtless were, those of the gypsy moth. 



"The egg clusters of the gypsy moth may also be trans- 

 ported on any of the numerous objects on which they are 

 laid. Freight cars that have stood near the infested foliage 

 for a period long enough for the laying of gypsy moth eggs 

 upon them may even transport the pest. " It is surprising, 

 however, that as yet no instances have become known in 

 which freight cars have carried the eggs, so that a colony 

 of the moth has arisen at any distance from the badly 

 infested regions, though certainly abundant opportunity 

 must have arisen in past years. 



DISTRIBUTION IN NEW HAMPSHIRE. 



Realizing the probability of the spread of the gypsy moth 

 into New Hampshire by the large amount of automobile 

 traffic along the main road from Newbury port, ]\Iass., to 

 Portsmouth, N. H., in December, 1904, the writer had the 

 trees along it examined through the towns of Seabrook and 

 Hampton Falls by two trained assistants. No traces of 

 infestation, however, were found at this time. Inspection 

 during the present fall shows that no infestation along this 

 road existed in 1904. 



In September, 1905, the inspectors of Massachusetts had 

 located the pest in all of the towns along the northern 



