30 



At Christmas I attempted to obtain -personally from Prof. Quamtance 

 further information as to the importance and distribution ot ttie in- 

 sect, but could ascertain only that it was common in plants o± India 

 and had probably been introduced from there to Jamaica. Very little 

 was known as to its importance. Our Entomologist subsequently had 

 his identification of the insect verified by Prof. Quamtance, and he 

 presented a paper on the subject to the Sociedad de Historia Natural 

 of Felipe Poey in Havana. . 



The Entomologist and myself have been on a citrus survey o± the 

 Island and we did not find any of this insect until toward the end of 

 the work when we went to the plantation where it was reported, 

 making the visit not because the plantation was in a citrus center but 

 because of this report. There we found that it had spread considerably 

 and was possible covering a radius of two miles. It occurred in va- 

 rious citrus trees, on mango, coffee, and on guava. This constitutes 

 the only record of its ocurrence in Cuba. The focus is at Guantanamo, 

 a district far removed from any of the citrus exporting colonies so 

 that its control should be a comparatively easy matter. We have 

 just returned from the completion of this survey and the examination 

 of this center and have just made our report to the Government, and 

 although the insect occurs over only a small center at present, plans 

 are being made to restrict it to that center and eventually eradicate it. 



Letter, from Wilmon Newell to J. R. Johnston, dated June 10, 1916. 



I beg to thank you for your full and explicit account of May 31st 

 regarding the occurrence of Aleurocanthus woglumi in Cuba. 



I note that this insect apparently occurs in a very limited area at 

 Guantanamo. I am wondering whether there are any exportations of 

 any kind to Florida from Guantanamo, and also whether there is any 

 likelihood of freight cars being loaded at Guantanamo for shipment 

 via Havana and the car ferry to Key West. From what we knom of 

 the distribution of the ordinary white fly, Aleurocantims woglumi 

 would he readily transmittable in freight and passenger cars regard- 

 less of the nature of the shipments which these cars might contain. 



If the Cuban government will undertake immediately the supres- 

 sion and eradication of this pest in the district where it now occurs, 

 and if the Cuban government can offer us assurance that no shipments 

 of any kind vnll be made out of the infested section to Florida, or 

 through Florida to other points, it may not be necessary for us to 

 impose a quarantine against the shipment of plants and plant pro- 

 ducts from Cuba. 



At the last meeting of the Plant Board, held oh June 5th, the 

 following rule was adopted: 



The importation into Florida of all trees, plants, vines, shrubs, 

 cuttings, scions, leaves and parts of plants from the Bahamas, India 

 and Jamaica, in which countries the spiny citrus white fly (Aleuro- 

 canthus woglumi) is known to occur, is hereby prohibited: provided, 

 that this rule shall not be construed as prohibiting the importation 

 of fruits and vegetables intended for use as food products when such 

 Iruits or vegetables are not infested or infected with any injurious 

 insect or disease or the importation of which is not otherwise speci- 



