Bui. 80, Part IV, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate IV. 



Condition of Buds at the Time When First Spraying for the Pear Thrips 

 (Euthrips pyri) Should Be Given. 



Fig. 1.— Bartlett pear. Fig. 2.— French prune. Fig. 3.— Imperial prune. (Original.) 



