us all accept it as our mission to educate the people to know that nut trees are the most economical and useful. Then, after a summer of furnishing the finest shade from the summer heat, fall would bring an abundant harvest of highly desirable edible nuts for the household and perhaps a few more for a city neighbor who may not have been so fortunate.
Thus, in closing, may I again emphasize that it is my sincere hope that the survey, which has been completed by Mr. Stoke through the good cooperation of the vice presidents, will result in a more intelligent selection of the best black walnuts for the respective communities and localities. This will enable the beginner, as well as others, to purchase black walnut trees with a reasonable assurance that the returns will be a source of satisfaction rather than a disappointment.
It is a real pleasure to come to Urbana and partake of the gracious hospitality of people like Dr. Colby, J. C. McDaniel, and others who have contributed so much to the success of this association. This is a great fraternity and it is my sincere hope that we continue from here to a most successful meeting. This common bond and mutual objective of better nut culture gives us pleasure, profit, pleasant association, healthful enjoyment, and at the same time renders a genuine service to our community and country.
At this time, we have to make a change in our program, due to the fact that our leader W. W. Magill, of the University of Kentucky, is not here with us. We have asked that S. C. Chandler, of Carbondale, Illinois, speak on the Control of Spittle Bugs on Nut Trees.
Control of Spittle Bugs on Nut Trees
S. C. CHANDLER, Illinois Natural History Survey, Carbondale, Ill.
When Dr. Crane spoke about the fact that so many of you grow nuts for pleasure rather than for profit, I thought that probably explained why I just knew about this pecan spittle bug June 27 of this year. I never even heard of it before, although it has been quite serious in and around Union County, 200 miles south of here. The firm which owns the orchard where these tests were conducted, Conrad Casper and Son, has 75 magnificent pecan trees besides an apple and a peach orchard. Mr. Casper didn't say anything about the trouble until then. He lays much of the loss of his crop to the pecan spittle bug. I want you to know what it is like. It is a little out of season. The meadow spittle bug works on grasses and weeds. This is, we have found, a different species. This one I brought up doesn't show as much as it would if I had collected it three weeks ago. There is a little nymph of a sucking insect which spits as it feeds. It doesn't chew tobacco fortunately. I got it from down here in the bottoms of the Little Wabash River.
I first want to tell you a little of what the grower, Mr. Conrad Casper, considers the importance of it. Now, as I say, I don't pretend to be a specialist on nut insects. My work has been mostly with fruit insects. Whatever I know about this insect I have learned this year, and I am just passing on that information to you.
Mr. Casper says that in the year represented by this growth here the spittle bug worked right into the base, and that is the one that would have produced buds. So, instead of bearing nuts, it acts as if you have pruned it. It didn't stop the growth, but it stopped the bearing of nuts. That was attacked by spittle bugs, but at any rate it didn't produce nuts. That has gone on four or five years and his neighbors all say the same thing. Here is one year, two, three, in the twig growth. This year it did make some nuts, in that particular branch. I am not prepared to back everything he says. Here is a growth here, then another, and finally had a few nuts all over the tree. So much then for the importance of it.
My problem was three-fold. I wanted to find out what species was involved. I found out it was not the same species that works on the grasses, and I sent in some adults for identification. They told me the right genus, but couldn't tell me the species. They are either in the process of determining it or on vacation. It is a different thing from the Meadow spittle bug and has two broods instead of one. I wanted to learn something about the life history. All of you know that it is very important to get the life history of the insect, because then you
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