ed.

Now there are small things I am attempting to show here. I think our
official photographer is on vacation. He has some that are larger than I
was able to take. I tried to take a picture when the spittle was dried
up, but I don't know whether you can see them.

I wanted to show you some of the cages. They were emergence cages that
cover a branch. The nymphs would develop into the adults inside that.

Here again I wished for my official photographer. These are the adults,
darkish up here and light in the other end. They are about three-eighths
of an inch long and they are a hopper. They have wings with which they
can fly, but mostly you see them jumping about. They look like your tree
hoppers.

I just wanted you to take a look down this magnificent orchard of Mr.
Casper's. He has 75 of those trees. They are 31 years old, planted 55
feet apart. They are 75 feet high. I am going to have to use some of my
boy scout ability and measure by proportion. He claims to have sprayed
at least the lower three-fourths of the tree.

MEMBER: He uses a speed sprayer, doesn't he?

MR. CHANDLER: No, it's another kind. With all the pressure on one gun,
he can get a long way up. One of the materials we used was too strong
and we got a crinkling on the leaves. After that he cut it down to what
I told him.

My data slide. I want to tell you about this. He sprayed first on July
16 in the orchard which I showed you. He sprayed the whole thing with
parathion. He had been using it with his apples and he thought of that
as being such a deadly poison that that must be the thing to do. We
thought so the first day afterward. He sprayed in the evening. At nine
the next morning we could find practically none of those terminals that
seemed to have live spittle bugs, but in about two days we could see
some were surviving that treatment so we came in again. That spray was
applied July 23. At any rate, we sprayed one row with lindane, 1-1/4 lb.
per 100 gallons. When I went through the original parathion sprayed plot
there was well over half that had some live nymphs.

We started our tests over again. On July 30 we sprayed with lindane (25%
wettable powder) with one pound to one hundred gallons of water. Only
three terminals with any live nymphs out of a hundred were left in the
lindane. The parathion has 38 per cent alive. TEPP which is teta ethyl
pyrophosphate is a very quick acting material but doesn't last. Whatever
it does, it has to do in