HOW AND WHEN TO SPRAY, 41 



CHAPTER VIII. 



HOW AND WHEN TO SPRAY. 



Although the precise time to spray for any particular 

 insect or disease has been given in the remarks under 

 each, yet it will be well, perhaps, that we should supply 

 a few general hints on the subject, and on other matters 

 pertaining thereto. 



When to Spray. — Generally speaking, winter spray- 

 ing is done when growth is dormant. January to March 

 is about as good a time as any for carrying out such work. 

 Spring spraying is usually done between March and May. 

 Summer spraying may be done any time during the season 

 of growth. 



Poisonous spray-tiuids should not, however, be applied 

 to ripe or ripening fruit. It is really not safe to spray 

 within six weeks of the fruit being fit to eat. This rule 

 should be strictly observed in order to avoid fatal acci- 

 dents. 



Spraying, again, should be done in fine weather, not 

 when raining, otherwise the fluid will be washed off before 

 it has had time to take effect. Evening is a good time to 

 spray on a small scale. 



How to Spray.— See that the mixtures or fluids are 

 thoroughly well mixed before using. Where coarse mate- 

 rials enter the composition of the fluids it is advisable to 

 strain the Hquids through a fine strainer before using; 

 otherwise grit or other particles may get into the spray 

 nozzles and prevent the efficient working of the apparatus. 



Whether applied with a spraying machine or with a 

 syringe, always see that the liquid is delivered in a mist- 



