40 



BULLETIN 965, U. S. DEPARTMEI^T OF AGEICULTURE. 





writers to hang a container on each tree or shrub about the property 

 and to place several about the house along the foundation where trails 

 of ants are found. Where ant-frequented property adjoins, it is well 

 to distribute containers at the margin. They can be tacked in pro- 

 tected places on fences or to hedges. Ground traps should be placed 



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Fig. 20. — Diagram of residential property showing distribution of poisoned-sirup containers. 



along sidewalks and about lawns where trails are located. A satis- 

 factory distribution of containers on a 50 by 200 foot lot is shown in 

 figure 20. 



COMPREHENSIVE DEMONSTRATION OF CONTROL. 



A campaign directed toward the control of the citrophilus mealy- 

 bug was started at Upland in 1917, and it was soon discovered that 

 the 600 infested acres were entirely overrun with the Argentine ant. 



