172 PLUM. 



with : — " Two bucketfuls of water are first poured into the 

 can, then three tablespooufuls of good green, well mixed Avith 

 another half-bucketful of water and strained through a funnel- 

 shaped strainer, . . . the use of which prevents the larger 

 particles of the green from getting into the can and clogging 

 up the sprinkler." 



The exact method of mixing, however, is quite immaterial — 

 only remembering that the powder should be thoroughly 

 diffused through the water, not allowed to be in lumps ; and 

 also the methods are best which allow of the operator mixing 

 without handling or inhaling the 'powder. 



For the above reasons, and also for convenience in mixing, 

 the " paste " form before mentioned is preferable to the 

 powder. 



Mixture of flour with Paris-greeti. — The addition of flour to 

 the mixture of Paris-green has been found to answer here, 

 and has been strongly advised in the United States, because 

 of the greater adhesiveness thus given, and also because the 

 difference of colour helps to show the amount that has been 

 distributed on the leaves. "Two or three pounds of flour" is 

 an amount named as useful to add to a mixture of Paris- 

 green in 40 gallons of water, but the precise quantity does 

 not appear to be very important. 



Where the plan is adopted of mixing flour with the Paris- 

 green, the following method has been advised: — To take a 

 large galvanised iron funnel of capacity suited to the work ; 

 for filling a 40-gallon barrel a funnel of 18-quart capacity is 

 noted. This funnel has inside it a kind of strainer (described 

 as a " cross-septum ") formed of fine wire gauze, such as is 

 used for sieves, and this also has vertical sides and a rim to 

 keep it from rocking on the barrel. The quantity wished of 

 cheap flour is placed in the funnel, and washed through the 

 sieve-like wire gauze by water poured in ; thus the flour is 

 finely divided and diffused in the water, and the Paris-green 

 subsequently added and washed down in the same way by 

 addition of the rest of the water until the barrel is full. 



With regard to the nature of Paris-green. — "Paris-green" is 

 an aceto-arsenite of copper, and of a poisonous nature, and 

 therefore should be used with care in mixing, and should not 

 be applied to fruit, or to vegetables that are used for food ; but, 

 as will be seen in the directions for use, the quantity advised 

 for orchard use in the Canadian Government Eeport, to check 

 looper-attack on leafage, is very small ; and our English ex- 

 perience of eight years has shown that it can be as safely 

 used here (with proper care) as it has now been used for 

 regular farm and orchard work for many years, over an area 

 of many thousands of miles, in the Conthient of America. 



