52 CITKKANT, [1900 



With rojijaril to inetliods of prevention and remedy. As the attack 

 is so sekiom noticod, these seem hardly to need special mention ; but 

 it may be worth while to note that the plants, or parts of phmts, most 

 aft'octed (where specially reported) were bashes nailed to walls, or not 

 fully exposed to light and air, or the under side of branches ; conse- 

 quently, all measures of good cultivation adapted to keep the branches 

 or the bushes from being crowded up together or overshadowed would 

 be useful, as also keeping a watch on Currant branches nailed to 

 walls, where any infestation which especially affects tlie sheltered 

 or under side of branches has every chance of establishing itself. 

 In many cases probably, at least where attack was bad and the 

 Currant bushes could be spared, the very best course would be to 

 cut them down and burn them, and so save risk of spread of the 

 infestation. 



In regard to remedies, it is somewhat curious that applications of 

 soft-soap and also of paratlin oil should be reported as useless. But 

 as kerosine emulsion has been found a successful application in the 

 United States of America for destroying the eggs of the allied species, 

 F. iunuDienihilis, it is presumable that this or the very similar English 

 mixture sold under the trade name of Anti-pest (for which see Index) 

 would have very useful effects. 



The only remedy noted as quite successful was that applied by 

 Mr. William M'Kenzie to infested bitshes in the gardens under his 

 charge at Glenmuick, Ballater, Aberdeenshire. This consisted in 

 applying " a dilution of hot lime in the autumn, going over the bushes 

 with a brush (the same process as whitewashing), occasioning the 

 bushes to shed or throw oft' the bark, and thus eft'ectually curing them 

 of the pest, without in the least injuring the bushes."' The proportion 

 used was " two pounds of lime to one gallon of water, being of the 

 same consistency as is used for whitewashing walls," and the applica- 

 tion proved to be a permanent and effectual cure. 



