I 



The Currant Fruit Fly. 



187 



were opened to determine the egg period and hence no data were 

 obtained on the emergence of the larvae from these berries. 

 Table 4, shows the results. 



TABLE 4. 



Dates of Dropping of Gooseberries and Exit of Larvae. 



r 



Dates in July of dropping of gooseberries i 



?°s 













































■3-eS 



.M«> > 









































*5 H »► 



S15 



2 



3 



4 



5 



6 



7 



8 



9 



10 



n 



12 



13 



14 



lb 



16 



17 



18 



19 



22 



24 



Eh a£ 



July 11 





1 







































1 



12 





6 







































6 



13 





8 



3 





































11 



14 





5 



17 





2 



1 































25 



15 



?. 



5 



19 





3 







1 





1 







1 

















33 



16 



5 



3 



12 







4 









1 



3 



2 



2 



1 



4 











. 



87 



17 



3 



3 



9 





3 



1 









2 





1 



1 





1 













24 



18 



3 



4 



7 



4 



6 



3 



1 



1 







2 









2 













83 



19 





2 



4 



2 









1 





















1 







10 



20 











1 



1 





1 









1 











1 









6 



21 



1 

















1 













1 



1 











4 



22 













1 













1 









1 











8 



24 













1 



1 















1 



1 









1 



1 



6 



Similar records obtained with currants are given in table 5. 

 TABLE 5. 

 Dates of Dropping of Currants and Exit of Larvae. 









Dates IE 



July o 



E dropping of currants 









o 

















h 

















































,S-u > 



























4^ £ > 



Ss^ 



10 



11 



12 , 13 



i 



14 



15 



16 



17 



18 19 



20 ; 21 



22 



23 



24 



^gl 



July 15 









1 



1 























2 



16 





1 











3 



















4 



17 



1 





2 



1 





2 





















6 



18 







1 



1 





4 





3 



3 















12 



19 



2 







1 



1 



2 



2 



2 



2 



5 













17 



20 















1 



1 







2 











4 



21 













1 





1 









1 









3 



22 











1 



1 





















2 



23 





























2 





2 



24 



























T 







1 



26 































1 



1 



If the laborious task of picking up fallen infested fruit has 

 any practical value, it is evident from tables 4 and 5, that the 

 drops must be picked up daily. With this method of control the 



