282 



JOUENAL OP AGEICULTUEE OF P. E. 



mw^ 



^'^x~"',,-\' '-!: "'■ ''■' 





A -^ 



n- 



i^v-- 



V1.V -■>'/ 



/ - ^^:n ' 



i&.I.. M: 



Pig. 36. — The Diamond-Back Moth (Plutella macuUponii.'^.) A, adult moth; B, 

 larva; C, pupa; I), mustard leaf showing injury by the larva-. (U. S. Bu- 

 reau of P]ntomology.) 



