GARDEN PESTS 



Many insecticides require to be constantly agitated 

 to keep the mixture in proper condition, and the best 

 pumps are therefore equipped with an arrangement 

 for doing this, called an agitator. Some solutions re- 

 quire special nozzles; these are indicated in the list. 



Powders are applied more evenly perhaps with a 

 powder gun or bellows, but a powder duster, which is 

 really nothing but a tin pail with a cover, perforated all 

 over the bottom like a huge saltshaker, is usually per- 

 fectly satisfactory. A bag of coarse and open cloth, 

 like scrim, is also practical, though this does not insure 

 sprinkling the powder only down upon the plant, as 

 the tin shaker does. 



The time of applying insecticides is of the greatest 

 importance, neglect of even two or three days being 

 sufficient to make all the work futile sometimes. Re- 

 member always that it has been planned with the 

 greatest care and after years of scientific investigation 

 and patient study, to meet certain periods in the life 

 cycle of the insect in question, which may be vulnerable 

 only at such period. Too soon or too late, either one 

 therefore, will not do. Do the work just at the time 

 specified, when it is actually specified. If the direc- 

 tions say when the petals fall," that is the time; if they 

 say "four days after the petals have fallen," that is the 

 time. 



Consult the Spraying Table when you wish 

 to know what to do with a certain kind of tree; 

 consult the Spraying Calendar for the work of each 

 month. 



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