75 



olnPr,^f 1?^ ^/^'*^' ^' ^'^^ ^' ^ ''^'^'' "^^^^ «f tli« ^«™es of 

 owners ot iniested properties. 



.,;+,; ?f n P^^^^^'l ^l«o to maie a house to house mspection of the 

 city o± 'buantanamo to determine the extent of the Mosea Prieta 

 there and to register the properties attacked by this pest. In this 

 wa,y It is hoped that the subsequent control work will he fa- 

 cilitated. 



OONTBOL WOEK 



In the intervals between the various inspection trips the 

 writer visited the Finea Mohtesano to note the progress of the 

 control work. It was expected that the third complete spraying 

 would be finished by the end of Septemiber, allowing for ordinary 

 delays, but the heavy rains for the past tHtee weeks have not 

 made spraymg operations possible, so that the control work has 

 been postponed until more favorable conditions exist. 



In concluding the report on the Guantanamo work it may be 

 said that Finca Montesana was sprayed 5 or 6 times between July 

 1916 and January 1917, and at last was in good condition, 

 although not entirely free from Mosca Prieta. 



All of the city of 'Ghiantanamo had heen inspected and in 

 254 residences over 2000 plants were founid infested. 



The extent of the infestations in the district of G-uantanamo 

 is shown on the accompanying sketch of that region. 



Since early in February there is no report of further work 

 in Guantanamo. 



In November 1916, Mr. H. A. Van Hermann examined some 

 trees in the house of Mr. Barker on 19 and 4th streets in Tedado, 

 Havana, and collected various insects and sent them to the En- 

 tomologist Sr. iCardin. Among these insects were found some of 

 the Mosca Prieta. 



Investigation of the conditions in Vedado were immediatly 

 begun. It was found that some mango plants had heen introduced 

 from Guantanamo during the last two years, and the infestation 

 probably begun in that way. The entire block between 17 and W, 

 2 and 4 was found infested so that treatment was immediately 

 undertaken by the Commission of Plant Sanitation. At the 

 same time inspectors were ordered to determine the limits of the 

 infestation. 



A few days work determined the fact that all of the Vedado 

 was infested, and in addition the Quinta de Molinos. During the 

 inspection of December, Jamiaiy, and February no Mosca Prieta 



