78 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



weevil (see p. 272), and may sometimes be used where it is dif- 

 ficult to secure or haul water. 



Other mechanical device ; for combating particular insects 

 will be described in connection with them.* 



* For further information see " Information Concerning Spraying for 

 Orchard Insects," A. L. Quaintance, Yearbook, U S. Dept. Agr., for 1908, 

 p. 267. 



