70 



or about to emerge, before they were able to fly or, ia the latter 

 case, even extricate themselTes from their pupa -cases. 



In spite of this desti'uetion of adalts, boweYer, their numbers 

 do not appear to have been perceptibly reduced since the last 

 spraying. 



The immature slJages, particularly the eggs, have suffered 

 from the effects ol ihe third spraying, a great number of these 

 having shrivelled before they could hatch. 



Further remarks. 



The writer fs of the opinion that with a higher .grade of labor 

 still better resillts would have been obtained. Th« men woitrag 

 the pusips hate to be constantly watched for efficient work to be 

 done, but eonfstant sii^ervi^ii has not aiways been pos^ble. 



There have befen -many «Ktoages in the personal of the gang 

 and this in itself has tad a dteteimeatal effect on ttie even quality 

 of the wodi. 



Tlie writer considers, however, lihat in spite of these difficult- 

 ies the Mosca Prieta is now under such control in the Finca Mon- 

 tesano that it can he left for lie present, i'urther sprayings, 

 however, at longer intervals, say two or three times a year, will 

 be necessary if this pest is to be ^ept in cieek. 



luiBiieeti&ii Work. 



On Sept. 2 the writer accompanied by the Inspector visited 

 the Finea of iSr. Morales wbic'h lies to the north-west of 'Ghianta- 

 namo across the Rio Jaibo. 



Sr. Morales has about lOO tall citrus trees, mostly orange, as 

 well as other 'host plants of the Mosca Prieta suet as mango, 

 cafe, etc. 



A careful examination of these trees showed that the Mosca 

 Prieta was very sEg'htly distributed throughout the grove. Traces 

 of this insect were found on about a dozen citrus trees and on 

 one small mango tree. 



The orange trees were many of them badly infested with the 

 citrus Chionaspis scale, the trunks and smaller limbs and twi'gs 

 in some cases presenting a whitened appearance due to the 

 numbers of male scales. 



The writer considers that the infestation of these trees with 

 the Mosca Prieta is not serious enough to make immediate spray- 

 ing necessary. 



Plans for the future (Tentative Only). 



1. To make a complete inspection of the town of Jamaica 



