April. T'l 



JOURNAL OF ECONOMIC ENTOMOLOGY 



Plate 9 



1, Wnrk nf l'hi,rhia fusrirrps in l)c:u s soon lyUrv i.lai.tinir: 2. St iintod hoan phmts 

 or "Snuko heads'; li, "Siiakc heads-' seiidiiiK out ne>v leaves; 4, A plant developed 

 from II "Snake head ' compared to a healthy plant of tlie same ane. 



