38G i^oAiM) OK A(;KT<rr/rriJK. 



Prof. Troop: This disease is conlinod to the roots. The tree when the 

 disease has completed its course will fall ri.i;lit over. It destroys the 

 roots. 



Mr. Swalra: I have never seen the root rot as it exists in the southern 

 part of Indiana, but this year I found in Kosciuslio County cases in trees 

 that were just in the condition that I'rof. Troop spoke of, and wliich at 

 the time I supposed were affected with what tliey call root rot. The 

 trees simply lost their roots and were standing there with the limbs dead, 

 and you could easily push the trees over. I saw this in two different 

 orchards. 



Prof. Troop: 1 will say, as one of the committee, that one of the 

 things that we are trying to work out down there in Lawrence County 

 in the Experimental Orchard is something that will prevent this root rot. 

 As yet, we haven't accomplished anything definite. 



Mr. Simpson: Root rot is found in forest trees, and if we select a site 

 for an orchard we must be careful and see that the ground is not inocu- 

 lated, and possibly in that way we can avoid a great deal of this root rot. 



President Stevens: Mr. Simpson, may I ask this question? Is it not 

 a fact that orchards set out in new land where there is decayed vegetable 

 matter, stumps, roots, etc., are more likely to have trees affected in this 

 way? 



Mr. Simpson: Generally speaking it is true, I suppose, but I am told 

 by good authority, Mr. L. E. Goodwin, of Missouri, that he considered the 

 vegetable soil excellent for apple orchards, but Ave must be careful in 

 selecting a site to see that the timber is not affected Avith root rot. If tho 

 forest trees are affected the apple trees will be also, but if the timber has 

 been clear of it, 1 should think it would be all right. Newly cleared 

 ground is more likely to have it than old ground. 



Prof. Troop: At the same time, Avhile that is probably true, yet, 1 

 know of orchards that were planted on old ground that were infested with 

 the disease of root rot just the same. In fact it is not known whethm- 

 this rot attacks forest trees or the rot that does attack the forest trees is 

 the same thing that attacks the fruit trees, but it is generally the case, 

 however, when an orchard is set in newly cleared ground that it is apt to 

 be worse than if planted in old ground. 



Mr. Little: Are all varieties affected the same? 



Prof. Troop: I do not know whether any varieties are exempt or 

 not, but they are not affected alike. 



Mr. Young: At what age are trees affected? 



