70 



The following packages were refused shipment on account of 

 infestation or of having undesirable soil attached to the plants: 

 Plants 14 packages; fruit, 2 packages; total, 16 packages. 



Respectfully submitted, 



E. M. ElIRIIORN, 



Superintendent of Entomology. 



FRUITFLY CONTROL. 



E. M. Ehrhorn. Esq., Superintendent of Entomology. 



Sir: — I submit herewith my report on the operations of the 

 insectary during the month of January, 1915 : 



Propagation. 



Diachasiiia fuUazvayi — 355 females, 710 males. 

 Diachasma tryoni — 13 females, 26 males. 

 Tctrastichus giffardi — 15,025. 

 Spalarigia sp. — 18. 



Liberation. 



Diachasma fnUazvayi — 205 females and accompanying males. 



Tctrastichus giffardi — 13,100. 



Of the Diachasma 135 were liberated in the Kona district of 

 Hawaii, and 70 at Maunawili Ranch, Oahu ; of the Tctrastichus 

 10,000 were liberated in Nuuanu Valley, Honolulu ; 900 in the 

 Kona District, Hawaii; 1,000 in the Hi'lo District, Hawaii; 800 

 near Lihue, Kauai, and 400 at Moanalua Gardens, Honolulu. 

 All the specimens of Diachasma tryoni and Spahnigia have been 

 retained for further multiplication. 



^lie numb^t of pupae hand'cd during th'_' jterio 1 corri^ ponding 

 to the above emergence was 31,516 for Diachasma fullaicayi and 

 6,210 for Tctrastichus giffardi. The jjcrccntagc of parasitism 

 estimated on these figures is 3% for the former and 16'>; for the 

 latter. 



Respectfully su1)niilted, 



I). T. Imi.i.awav. 



