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fically prohibited: provided, further, that this rule shall not prohibit 

 the importation of lumber, logs, sisal hemp or manufactured articles. 



Unless we can receive adequate assurances that the Cuban go- 

 vernment will take steps to prevent the possibility of this insect being 

 transmitted to Florida in shipments, it will be necessary for us to 

 place a similar quarantine on shipments from Cuba. 



Dr. J. H. Montgomery, a member of our staff, returned recently 

 from a trip of investigation to Nassau and adjoining islands, and 

 found that Aleurocanthus woglum has proven very destructive in 

 Nassau during the past ten months, many lime trees having been 

 killed outright and other groves having been cut down in their entirety 

 by the growers as the latter had abandoned all hope of saving them 

 from destruction from this pest. Apparently it is far more destructive 

 than any species of white fly which occurs in Florida and from the 

 conditions existing in Nassau we have every reason to fear the 

 possible introduction of this pest as a calamity second only to the 

 introduction of citrus canker. It therefore behooves us to take every 

 possible step to prevent its introduction. This will require rather 

 drastic measures in view of the large number of plants on which the 

 larvae might be transmitted, and also the fact that the adults could 

 evidently be readily carried for long distances in the holds of vessels 

 or in railway cars. 



We sincerely trust that your government will take initiative steps 

 in this matter which will obviate the necessary of our placing a 

 quarantine on shipments from Cuba, but prompt action vsdll be 

 necessary to avoid the imposition of such a quarantine by our State 

 Plant Board. 



Letter from Wilmon Newell to J. R. Johnston, dated Oct. 5, 1916. 



I beg to thank you for your letter of Sept. 10th, vyith which you 

 enclosed a copy of Mr. J. C. Hutson's report on the control work on 

 Aleurocanthus woglumi, in the vicinity of Guantanamo, Oriente, Cubal 



You can realize, I believe, that it is a source of much gratification 

 10 us to know that this injurious pest is being vigorously dealt with 

 in Cuba, therefore this step certainly will operate to protect us against 

 the introduction of this pest into Florida. This particular insect has 

 been very destructive in the Bahamas and we have been in almost 

 constant communication vrith His Excellency, Sir William AUardyce, 

 Governor of the Bahamas, for the past few months regarding possible 

 control measures. 



Letter from J. R. Johnston to Wilmon Newell, dated Dec. 15, 1916. 



I regret to have to inform you that the Spiny White Fly (Aleuro- 

 canthus woglumi) now occurs in part of the city of Havana. The 

 pest is limited to Vedado, a part of the city some disi;ance from the 

 port. It is not very abundant, and seems to have originated not a 



