209 



gated with hydrocyanic acid gas to prevent the escape of any in- 

 sects. I then submitted a small section of the cane to Dr. Lewton- 

 Brain, the pathologist, as it had evidence of disease and the fol- 

 lowing is his report thereon : 



*'I have examined the specimens of diseased cane you sub- 

 mitted to me this morning, after a thorough disinfection. The 

 sticks were evidently very badly diseased and as the discoloration 

 had not yet extended to the end, it seems certain that they were 

 infected to begin with and did not become so while in transit. I 

 am sorry I cannot identify the disease, but I could not discover 

 any fructification of the fungus, nor do' we know enough K-i 

 Oriental cane diseases for me to identify this from the symptoms. 



''The symptoms do not agree with any Hawaiian cane disease 

 known to me and though, as I have said, we know little of Orien- 

 tal cane diseases, the probability is that there are some which are 

 unknown elsewhere altogether, therefore, it would be highly un- 

 safe to admit these canes into these islands, and the sooner they 

 are destroyed the better." 



The cane and case were burned in a furnace near the dock. 



In April we received a strong colony of internal parasites of 

 the citrus aphis from Mr. E. M. Ehrhorn of California, We lib- 

 erated several colonies of this valuable little hymenopterous para- 

 site on orange trees infested with the orange aphis in the suburbs 

 of Honolulu and on the 2nd day of May Mr. Kotinsky liberated a 

 strong colony at Wahiawa. We are in hopes that they will reduce 

 the number of that dirty orange pest. 



During the past two weeks my assistants, Mr. Kotinsky and 

 Mr. Jordan, have been distributing colonies of the "horn fly para- 

 site" (Eucoila impatiens) in various stock breeding districts and 

 it is satisfactory to know that the colonies are becoming well estab- 

 lished. 



Colonies of the "Torpedo fi.v^' (Siphanta) Qgg parasites were 

 sent to Inspector Newell of Hilo about a year ago and have in- 

 creased so rapidly that he has been able to send out colonies free 

 to parties that have made application to this office for them. 



Mr. Kotinsky and I have made another inspection tour of the 

 various small Indian mango trees that were fumigated for the 

 mango scale and found that good work has been done. The 

 scales were dried up. A visit to the estate where the original 

 imported Indian mango trees were planted, that was fumigated 

 nearlv a year ago, showed to have made a very satisfactory 

 growth and we found' no trace of living mango scales. 

 Respectfully submitted, 



\ Alexander Cr.Vw, 



Superintendent of Entomology and Inspector. 



