blaeljened appearance due to the sooty mould fungijs, and the 

 leaves were in a semi-surled up and wilting .condition as a result 

 ot the numbers of the nymphal stages of the insect on their 

 undersides. 



The winged adults of this insect were also present in such 

 Jiunibers that they rose in clouds from the trees and undergrowth 

 when disturbed by the approach of the spraying maxjhine. 



Observations on conditions of the above grove after two complete 

 sproyings with kerosene emulsion. 



A visit made by the writer to the Finea Montesano on August 

 23rd showed that the second spraying of the w'hole naranjal with 

 kerosene emulsion was just being completed, and the follow:ing 

 observations were made : 



After two complete sprayings the general conditions of the 

 citrus grove have shown a marked improvement on conditions 

 mentioned above. 



The mimbers of all stages of the Mosea Prieta have greatly 

 reduced, and as a result the trees are resuming their normal 

 healthy condition. 



There are now remarkably few adults, whose presence can 

 only be detected hy a careful examination of the underside of the 

 leaves, principally those of new growth. 



The larval or nymphal stages have also suffered heavily as is 

 shown by their shriveled conidition and by the ease with which 

 they can 'be ruhbed off. There are, however, an appreciable 

 number of these stages still alive. i 



With the aid of a lens it can be seen that a large percentage 

 of eggs Ihave dried up before hatching, but there are also naajij^ 

 still left in a condition to hatch.- Most of these last, however, have- 

 evidently been laid since the second spraying, and it is import- 

 ant that as many as possible 'be .prevented from hatching. 



The writer therefore recom.mended a third spraying with 

 kerosene emulsion as soon as possible. Heavy rains delayed this 

 work until August 25th', but served some good ipurposQ in killing 

 a number of adults of the Mosea Prieta. 



Rains, madhine and labor troubles have all contributed to 

 retard the progress of 'the third spraying, .but towards the end 

 of this last wje&k (Sept. 7th and 8th) the work was in a sufficiently 

 advanced state to allow of further observations heing made. 



Observations made towards tiie end of the third spraying. 



This sprayng has caught a number, of adults just emerging. 



