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entire outfit of pumps aud spraying nozzles of the most approved pat- 

 tern, and a skilled man was also to be sent there, who should remain 

 in Walton ( 'ounty as long as his services are needed. The fruit-growers 

 are to furnish materials aud men, and a concerted effort will be made 

 to go over all the infested trees in the district and make five or six 

 applications of resin wash at intervals of about ten days. If these 

 sprayings are carried out by an expert as promised, and if the operative 

 is fortunate enough to hit upon a period of dry weather, there is every 

 reason to suppose that the nuisance will have been abated by the close 

 of the season in Florida, although extermination may not be found pos- 

 sible. If, however, the spraying is done during a comparatively rainy 

 season there will be reason to regret that the kerosene emulsion was 

 not used. Mr. Hubbard made further arrangements with Mr. Mellish 

 to forward specimens to Washington at intervals of a week, so that the 

 rate of development in Florida may be compared with the rate of devel- 

 opment at the North, and details of this character I hope to publish at 

 the close of the year. 



In March, immediately upon the determination of the insects from 

 Riverside, Md., as the San Jose scale, upon the receipt of the same 

 sj)ecies from Florida, and upon learning that, in the former case at least, 

 the stock was in all probability purchased from a large Eastern nursery 

 as long ago as 1887, I prepared a circular of warning and distributed 

 it the first week in April to all Eastern agricultural newsjiapers and to 

 nearly 12,000 Eastern fruit-growers, whose addresses I obtained through 

 the kindness of Mr. S. B. Heiges, pomologist of the Department. The 

 circular gave carefully drawn illustrations of the insect in its different 

 stages, described its appearance, explained how it spreads, gave the 

 known remedies, and urged uj)on fruit-growers the great imi^ortance of 

 examining their orchaids at once and sending specimens of suspected 

 scales to the Department. 



As the result of this Avidespread distribution and the wide dissemina- 

 tion of the warning by the newspapers, the division was for some weeks 

 almost overwhelmed with packages containing scale insects of all kinds, 

 from all sorts of jylauts, and from all parts of the country. Not only 

 were scale insects received, but species belonging to many other groups, 

 all the senders wishing to know if these were not the San Jos^ scale. 

 The bark lice most abundantly received were the scurfy bark-louse, 

 Chionaspis furfiirvs, and the common oyster-shell bark louse of the ajiple, 

 Mytilaspis poniorum. I had previously supposed that every apple- 

 grower knew this latter species, but this exi)erience indicated a greater 

 lack of familarity with the commonest forms than I had suspected. 



As a result of issuing the circular, the following new localities for the 

 scale were ascertained : 



Neavitt, Talbot County, Md. ; Chestertown, Kent County, Md. ; Bartle, 

 Washington County, Ind.; many points in New Jersey; Atglen, Chester 

 County, Pa.; Lewisburg, Union County, Pa. Farther west the scale 



