THE PLUM SCALE.-(Lecanium.) 



This insect, which was first noticed in 1894, and has been attacking the 

 plum orchards of the Niagara district, must not be neglected. Its size, nearly 

 a quarter of an inch in length, renders it easily discernable, and therefore we 

 have no excuse for allowing it to increase in our orchards. Fortunately severe 

 winters .destroy large numbers of them at the North, and it may be that in 

 Canada they will never become the serious enemy they are farther South. In 



Fig. 953. 



order that our readers may be able to recognize them we insert again a cut 

 rom Garden and Forest, showing a branch of Bradshaw seriously infested. 

 Underneath these scales are masses of eggs from which the young lice issue 

 early in May ; they crawl about till they find a suitable location, usually on the 

 under side of a limb, where they attach themselves to the bark. Infested trees 

 should b& sprayed with kerosene emulsion, diluted four times; apply once in 

 fall and twice in spring, before leaves open. 



