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MASS. EXPERIMENT STATION BULLETIN 343 



An Elm Blossoming in the Spring. 



The Dutch elm disease threatens destruction of the American elm. 

 The only hope of saving Massachusetts elms lies in early discovery 

 and prompt destruction of the first infected trees found in the State. 

 Watch for dying branches; wilting and yellowing leaves on terminal 

 twigs; premature leaf-fall; brown streaks or spots showing in outer 

 wood rings and under the bark of sections cut from wilt-affected 

 branches. If these signs appear, cut six-inch sections of half-inch 

 diseased twigs; label with the location of the tree and your name and 

 address; wrap securely ; and send to — 



THE SHADE TREE DISEASE LABORATORY, 

 MASSACHUSETTS STATE COLLEGE, 

 AMHERST, MASSACHUSETTS. 



Publication of this Document Approved by Commission on Administration and Finance 

 «m 5'87. No. 887. 



