THK LKSSEK PEACH BORER. 45 



a single larva of the lesser peach borei-. It has been found at Oden- 

 ton and Jessup, Md. (Mareh to May, 11)05). and at Fort Valley 

 (April, May, July, 1905), and Myrtle, (la. (Mareh, li)OC.). 



Bi'dcon indlitor Say is also a rather connnon parasite of the lesser 

 peach borer, and its method of attack is similar, being fatal to full- 

 grown larva' in their cocoons. After leaving the body of the host 

 the parasite larva' spin small comi)act cocoons side by side, which 

 completely fill the host cocoon. They pass the winter in this condi- 

 tion and emerge the following spring. Thirty-four males and 31 

 females of this parasite were reared from two host larva* during 

 April, li)05. The parasite also attacks the larva of the ])each borer 

 and has a number of other hosts. It has been found to occur in the 

 same localities as the eulophid parasite, but in (u'orgia, in 190(>, it was 

 rarely met Avith. It was rather connnon in Maryhuid in the spring 

 of 1905. A species of Microbracon was also reared from the larva in 

 Maryland and Georgia. 



During 1905, at Fort \'alley, Ga., Mr. J. H. Beattie, then of this 

 Bureau, reared Canura n. sp. (determined by Titus), from the lesser 

 peach borer. The parasite emerged ]May 30 from the pupa. Also in 

 May he reared PimpJa (uitnilipcs Brulle, from the same stage of the 

 host. This is probably the parasite referred to by Bailey (1879). 

 Mr. Beattie also reared a species of Campoplex in ]May, 1905, and 

 a species of Mesostenus in May and June, at Fort Valley, from this 

 borer, making a total of six hymenoptei'ous i)arasites, all of which 

 were determined by Mr. Titus. 



An undescribed variety of Donjniyrmex pyramleus Roger, as deter- 

 mined by JNfr. Theodore Pergande, has been observed to attack the 

 larva when exposed during '' worming." This ant is very numerous 

 in tile peach orchards of (ieorgia, in the vicinity of Fort Valley, and 

 will prey upon any insect which it is able to overcome. Ordinarily 

 it is unable to get to this borer. Occasionally, however, it will kill 

 recently emerged moths, and any larva' which uuiy have been over- 

 looked during " w^orming," but which had been exposed. Mr. Titus 

 reports this ant as being abundant on peach trees at Monticello, Ga., 

 in August, 1905. 



It is indicated that birds sometimes extract pupse from cocoons 

 under loose bark, and Bailey (18T9) mentions a woodpecker as ex- 

 tracting larva' from the trunk of a plum tree. 



The value of the parasites of the lesser peach borci- is grcatci- iliau 

 that of its predaceous enemies. 



PREVENTIVES AND REMEDIES. 



From the fact that this insect prefers to attack trees which have 

 been injured or diseased, or are old, having wounded or checked bark, 



