Siiinmcr Meetino;. 87 



'is 



as AvcU as our enemies in the insect line? I would like to know about 

 this. 



Prof. Stedman. — If we spray for the insects that eat parts of the 

 plant there is no danger of killing any beneficial ones. The insects 

 that eat part of the plants are harmful ones. The beneficial insects 

 are those that eat other insects. If we spra}' with the intent to reach 

 that insect, we will kill it. Take plants and experiment with them, 

 you will find a number of good insects. When we spray for all 

 insects, we will kill the good as well as the bad. 



D. A. Robnett. — About leaving those bands on the trees. I find 

 that }ou can leave them on too long. The trees that I tried I put the 

 bands on and left them for about four years, and I found the tree had 

 grown so rapidly that there was loose bark sticking out through the 

 little cracks and the female could go right up the tree. These were 

 young trees and I found that I had to go through and loosen the bands. 



Prof. Stedman. — Well, it may be in some cases where the trees 

 are young. 



Air. Erwin. — I want to ask another question. Do these bands 

 "do an}^ good for the borers? My son put several bands around our 

 trees for borers and on examination I thought that it proved an in- 

 jury. The borers seemed to get there and then could not get out and 

 hored little holes all around the tree. I thought they did more damage 

 than the Canker worms were doing. 



Prof. Stedman. — As a rule they do much good. That might have 

 been the pin hole beetle in your trees. 



Erwin. — It made a little hole that came to a point and it was a 

 black beetle. 



Prof. Stedman. — Well, I don't think the bandage had anything to 

 -do with that at all. 



BITTER ROT OF THE APPLE— WHAT IT IS, HOW IT 

 SPREADS, WHAT IT LOOKS LIKE. 



(By Prof. Herman A'on Schrenk, St. Louis, Mo.) 



The bitter or ripe rot of apples is a disease which annuallv de- 

 stroys thousands of dollars worth of apples, and it is on that account 

 a trouble which is deserving of the most careful attention of all fruit- 

 growers. Geographically, it is widely distributed, for it is common 

 in all Southern states destroying apple crops from Virginia westward 

 and from Central Illinois southward. It does not appear with the 



