REPORT OF THE STATE ENTOMOLOGIST I915 73 



before the application of the oily compound and the sap issued so 

 profusely that it ran down and washed off the insecticide to some 

 extent. On May 29th there was a more evident discoloration and 

 to a greater depth than in the case of tree 1 . The leaves were light 

 green and apparently unhealthy, though the foliage was not so 

 discolored as that of tree 1, due possibly to its being more sheltered 

 from the sun. On June 28th the leaves were a light yellowish green 

 though the inner bark was dark brown and lifeless and slightly 

 moist with sap. On November 10th the tree was dead except the 

 very base which was not oiled, and showed a more evident discolora- 

 tion of the inner bark than in the case of tree 1 . There were markedly 

 deeper and more extensive stains in and near the wounds m.ade just 

 before the application of the insecticide. 



Tree 3 was an ironwood with a diameter of about ij inches. On 

 May 29th the inner bark was badly discolored, though the foliage 

 appeared to be normal. On June 28th the leaves were light yellow- 

 ish green, there being a perceptible difference between its foliage and 

 that of other nearby treated trees. The inner bark was dead, dark 

 brown and with little sap. On November 10th the tree was dead 

 and the bark showed a marked discoloration to the sapwood. The 

 treated portions were easily recognizable by the rich purplish brown 

 color and the markedly greater fungous infection of the bark with 

 a more or less evident discoloration extending into the sapwood. 



Tree 4 was a hornbeam, with a diameter of if inches. On May 

 29th both the inner bark and the foliage were apparently normal. 

 On June 28th the inner bark was brownish green, though otherwise 

 the tree appeared unharmed. On November 10th the tree was 

 nearly dead and showed a plain and uneven discoloration in the 

 inner bark. The treated portion had the bark plainly looser and the 

 wood beneath showed a discoloration not evident in sections taken 

 above the oiled part. Sections from the latter showed a moderately 

 bright green condition quite different from that obtaining below. 



Tree 5 was a white oak with a diameter of ij inches. On May 

 29th the tree was dead and the inner bark was badly discolored, 

 having a distinct oily odor. On June 28th fungus had begun to 

 develop in spots here and there on the trunk. On November 10th 

 a little sap was still evident at the very base of this tree. 



Tree 6 was a hornbeam with a diameter of approximately 1 \ inches. 

 On May 29th it had partly leaved out and was dead, the inner bark 

 being badly discolored. On June 28th fungus was developing in 

 spots here and there on the base of the tree. On November 10th 

 a little sap was evident at the very base of this tree. 



