INSECTICIDES AND THEIR USES 



Noc::lcs. — One of the main causes of failure 

 on the part of farmers to obtain good results 

 from spraying is the use of inferior nozzles which 

 are too often supplied by dealers. The ver- 

 morel type (fig. 24X) , for sale (single) at about 

 $1.25, is the best, having stood the test of 25 

 years and more of use. 



Fig. 24x.-Ver- 

 morel nozzle 



REMARKS ON APPLYING INSECTICIDES 



In the application of remedies 12 points are selected as im- 

 portant to be observed : 



1. Be sure of the insect which is the primary cause of the 

 damage. 



2. Make certain that the best remedy or remedies are used. 



3. When an insecticide is employed, ascertain if it is of 

 standard quality, because if it is lacking in strength it will fail 

 of its purpose. If not diluted according to directions, and if 

 therefore too strong, there is danger of scalding or otherwise 

 injuring the plants. 



4. The preparation used should be properly prepared. Thus 

 if kerosene emulsion is the remedy, it should be a true emulsion 

 and not a mere mixture of water, soap and kerosene. 



5. The best insecticide apparatus for the purpose for which 

 it is designed should be obtained, and for vegetables it is nec- 

 essary in most cases that a sprayer be used, and as often as not 

 the spray must be applied so as to reach the under surface of 

 the leaves, and remain on them and not roll off. 



6. The smallest amount of poison should be used to produce 

 the desired result ; much poison is wasted by persons who do not 

 understand its proper application. 



7. Remedies should be applied at the right time, usually 

 i^hen the insect first appears; as, for example, when a cater- 

 pillar has just hatched from the tgg, or when a beetle begins 

 to come out from winter retreats in search of food. Inex- 



