56 



spruce at Ne^vport, Greg., and from the Engelmann spruce at Sand 

 Point, Idalio. 



President Gillette then announced that the proposal of new mem- 

 bers AYas again in order, whereupon the following names were offered 

 and received : 



W. D. Hunter, AVashington, D. C, i3roposed hy Mr. Bruner; Ver- 

 non L. Kellogg, Stanford University, Cal., proposed by Mr. Bruner; 

 Dr. AV. J. Holland, Pittsburg, Pa., j)roi30sed b}^ Mr. HoiDkins. 



The meeting then adjourned for lunch, to reassemble at 2.30 j). m. 



AFTERNOON SESSION, AUGUST 24, 1901. 



Mr. Scott presented the first papei* of the afternoon programme, \ 



iz: 



A PRELIMINARY NOTE ON A NEW SPECIES OF APHIS INJURIOUS 

 TO PLUMS AND PEACHES IN GEORGIA. 



By W. M. Scott, Atlanta, Ga. 



Earh^ in April, 1898, I observed a chestnut-brown Aphid in great 

 numbers attacking j)lum trees in an orchard at Fort Valley, Ga. The 

 insects were crowded thick on the growing tips and leaves of several 

 thousand plunr trees, and their injurious effects were then evidenced 



by the curled and twisted condition of 

 the leaves and stunted api)earance of 

 the young shoots. 



Thinking it was probably only one 

 of the well-known species of plant-lice 

 common to the plum, I took no special 

 notice of it more than to have the in- 

 fested trees treated with 10 per cent 

 kerosene in mechanical mixture with 

 water, wJiicli proved to be an eificient 

 remedy. 



Several days later the same conditions 

 were found in plum orchards at Mar- 

 shall ville, and during the course of the 

 season the insect was located at a num- 

 ber of places in middle and south 

 Georgia. The following year, 1899, this 

 insect a gain showed up in numbers even 

 more injurious than when first observed. Investigations during that 

 year showed it to be generallj' distributed over tlie State, equally preva- 

 lent in the northern, middle, and southern portions. It was then found 

 to infest the peach as well as the j)luni. Its natural food plant would 

 appear to be the Avild plums, as these were found badlj' infested in 

 everj^ section of the State. Among the cultivated plums tlie AVild 

 Goose, Robinson, and Mariana appear to be favorites of this insect, 

 but the Japanese varieties also suffer serious damage from its attacks. 



Pig. \.— Aphis n. sp: stem mother on 

 peach and plnm in Georgia, much en- 

 larged (from drawing furnished by 

 Scott). 



