In sending specimens of diseased plants 

 or species for determination, it is essential 

 to send sufiScient quantities for a thorough 

 examination. In selecting diseased speci- 

 mens of plants to be sent, care should be 

 taken to choose as far as possible such as 

 show different stages of the disease includ- 

 ing all of theaffectedparts. Theseshould 

 be carefully wrapped in moist paper or 

 sphagnum moss and packed in a tight box. 

 A fuU description of the trouble and con- 

 ditions pertaining to them should also be 

 given 



MASSACHUSETTS AGRICULTURAL EXPERIMENT STATION 



MASSACHUSETTS AGRICULTURAL COLLEGE 

 Amherst, Mass. 



G. E. Stone. G. H. Chapm.-vn. 



In sending plants for determination, it 

 is desirable notonly to have the blossoms 

 or fruit, but as much as possible of the 

 whole plant. Specimens of trees should 

 include at least a small branch with several 

 leaves. 



Postage on specimens of plants is at 

 present one cent for each ounce or fraction 

 thereof. 



October 17, 1907. 



Mr. Walter Deane, 



Shelburne, U. H. 

 Dear Sir:- 



Your letter of the 13th is received. The pine trees are 

 looking this way throughout all Kiew England and have "been for 

 some time and I will refer your specimens to our entomologist, 

 wfto will report to you in regard to the insects. The insects, 

 however, have nothing to do with the browning of the pines. 



I have been familiar with this trouble for many years, but 

 it happens to have been much more common this season. I do not 

 consider it anything to be alarmed over. I have been observing 

 this trouble for some,^ particularly during the past four years, 

 and so far as Massachusetts is concerned it is nothing more or 

 less than sun scorch, which occurs on maples and other trees 

 every season. No fungi are associated with it at first, altho 

 later on saprophites appear. There is absolutely no evidence of 

 contagion and with us a large number of affected trees are rec- 

 overing already. ¥hen a similar burning took place four years 

 ago I estimated that about 50^ of the trees recovered from the 

 trouble, but when the burning is very severe a number of the 

 limbs on a tree died. 



C— 



Yours truly, ^ ^ g 



