THE MONTHLY BULLETIN. 445 



NEW RECORDS OF THE SHOT-HOLE BORER. 



By E. O. EssiG, University of California, Berlteley, Cal. 



The loqiiat has been added to the list of fruit trees attacked by the 

 shot-hole borer or fruit-tree bark-beetle (Eccoptogaster [Scolytus] rug- 

 ulosits Ratz.) by Mr. E. H. Paddock, horticultural inspector of Orange 

 County. ^Ir. Paddock took the beetles from living trees growing in 

 El Modena, California, April 10, 1915. Mr. Roy K. Bishop, horti- 

 cultural commissioner of the same county, recently informed the writer 

 that several trees had become infested, but they were in poor condition 

 and not at all healthy and that the work of the borer was not a serious 

 problem in so far as loquat trees are concerned at El Modena. 



There are many claims regarding the distribution of this beetle in 

 California and new areas of infestation are gradually increasing. It 

 was first recorded at Ontario, San Bernardino County^ where it exists 

 in considerable numbers in an apricot orchard. Plum trees were also 

 infested in the same locality. In the fall of 1914 Mr. Geo. P. Weldou 

 recorded the insect attacking apricot and cherry trees at Beaumont 

 and Banning. Riverside County.- The record from Orange County 

 enlarges the district to three counties all in the southern part of the 

 State. During the shipping of nursery stock in the fall of 1913 Mr. 

 R. S. Yaile, then horticultural commissioner of Ventura County, took 

 a single beetle from a shipment of fruit trees from Ontario, which 

 indicates that the insect may have been shipped elsewhere in a similar 

 manner. 



The writer will greatly appreciate receiving specimens of any of the 

 bark-beetles from the county horticultural commissioners and their 

 inspectors and from the fruit growers, together with information con- 

 cerning tlie pknts attacked and the amount of damage done. In this 

 way we may gradually increase our knowledge regarding the distribu- 

 tion and the actual damage which is being done by the beetle. 



' Essig. E. O., Mo. Bui. Cal. Hort. Com., Vol. II, p. 658, 1913. 

 = Welclon, Geo. P., Mo. Bui. Cal. Hort. Com., Vol. Ill, p. 445, 1914. 



