276 WILLOW. 



attend, and will inhale the powder in quantity, it u-ill cause 

 illness ; and if much is inhaled viaij be fatal. 



Other washes, such as soft-soap and paraffin or other 

 mineral oil, are very likely to be useful ; but one great point 

 of prevention is doing away with winter shelters of the beetles ; 

 and amongst these one which I have myself observed, but not 

 seen mentioned, is a thick loose covering or thatch of peelings 

 of the Willow rods on the roof of sheds in the Willow 

 grounds. Where this practice is followed, and these piles are 

 left through the winter, they would be a fertile source of 

 infestation. 



