INDIANA HORTICULTURAL SOCIETY. 347 



Professor Beach: The insect does not deposit the egg until fruit 

 is ripening. I can not see how "we can avoid the attacks of this fruit 

 fly by spraying because it is a fly that alights on the fruit when it is 

 ripening and punctures the skin. The early ripening cherries are attacked 

 as well as late. I can not tell you whether there is a difference in 

 varieties. They are bad on English Morello. 



Mr. Henby: The Montmorency, which is a medium late cherry, is 

 more free from this insect than any other cherry we grow. We grow 

 early May, Montmorency and English Morello. We had better success 

 with our Montmorency than any other sour cherry we grow, freer from 

 attack of this insect. 



Mr. Kingsbury: There is a pest called rigolosus that is very trouble- 

 some in boring into the limbs of cherry trees, especially small hmbs, and 

 causing sap to ooze out in the form of gum. On some of my trees, last 

 summer, the gum would extend from the joint where the limb ,ioias the 

 tree to a yard or more up towards the end, but did not seem to affect 

 maturing fruit very much. Does it not do that sometimes and kill trees, 

 and is there not some remedy? 



Professor Troop: It will kill trees, and has killed a great many. It 

 does not confine itself to the cherry, you will find it in nearly all the fruit 

 trees. Perhaps apple is as free as any of our cultivated trees, but cherry, 

 plum and peach are especially suited to it. In these fruits where the 

 gum exudes where bark is injured, it is a difficult matter to do very 

 much with it. A little beetle about as big as a pin-head bores holes 

 through the bark, the female lays an egg in the hole and the larva feeds 

 on tlie inner bark and sap wood. If enough of them are there, in time 

 they will cut off circulation completely and kill the whole tree. Where 

 gum does not exude I have succeeded in stopping them by using strong 

 kerosene emulsion with force pump early in the season when they first 

 begin to start. Use a solid stream or coarse spray. If the tree is badly 

 infested it ought to be cut down and burned. 



Mr. Hobbs: Where whale oil soap is kept on trees, they are not nearly 

 as badly infested as when not sprayed with some sort of soap mixture. 



Mr. Tilson: For two years 1 had four trees of these cherries. The 

 worms were in them so bad we could not use them, and I tried spraying 

 them with all the spraying stuff I could read about, Init did not do any 

 good. Last year I got a moth trap and set it under the trees, and kept 

 it there, and this year I did not find a worm in any of these cherries. I 

 caught everything, from the pumpkin bug down to the mosquito, by the 

 thousands. One morning I took out over half a bushel of these black bugs 

 that lay eggs for the grub worm. I got everything. I am going to light 

 the trap and set it early in the spring again. 



