WSBCTS INJURIOUS TO AGRICULTURE 203 



States, as well as Canada, Now Brunswick, and Nova 

 Scotia. 



Rl \n dd -.—The universal remedy is Paris green, one pari mix. d 

 with about twenty parte of cheap dour, and dusted with a < 

 box over the vines earlj in the morning while the dew is on i)u ground. 

 As the drj powder blows about, and is a poison, Paris green being a 



245.— Colorado potato-beetle. i, 6, 6, larva; c, puj •He. 



preparation of arsenic, it i- better to apply, with a spraj ing machine 

 or watering-pot, a liquid preparation, i.e., a mixture of Paris 

 ami water. On small farms and in gardens near the dwellii 

 Par'- -r.cn should l><- used with caution, as it has been known t<> 



pci-.. n COW - and 1h>i-< S, 



Blistering-beetles {Macrobasis ci .. /' i aula 



pensylvania !»'• Geer, etc.). — These in.-r.M~ .1 



damage t<> potato-leaves in certain years. The black blistei- 



ing-beetle (E. pensylvanica) is coramonesl northward; it is 



totally black, and is a little smaller than the gra> 



(.1/. cii ■ which is ash-colored ou the head, the ; 



thorax, and under side of the body. Thestriped 



beetle {/'. vittata) is longer and slenderer thai 



named, and is clay-yellow, with >i\ black longitudinal 



• 



strip.-. Tin' remedies recommended for orado 



beetle will destroy these and all other ii ling on 



potato-lea^ 



