We then compared the effectiveness of our 

 best wooden PTS and our best sugar/flour PTS 

 with sticky-coated spheres for direct season- 

 long control of apple maggot flies in commer- 

 cial orchards. In all, we used eight orchards, 



each having four blocks of medium-sized trees 

 (49 trees/block). Each block receiving spheres 

 was surrounded by 26 spheres of the same type, 

 five yards apart, each baited with butyl 

 hexanoate. 



Fruit Notes, Volume 62 (Number 4), Fail, 1997 



