an hour or two's time. It has lost its
efficiency after that. But we know it might kill everything in a big
hurry. There was still ten per cent. We could rule out parathion. We
went back to this one row and sprayed on July 23 and on August 2 and 3.
That would be nine days. There still were only four infested terminals.
That lindane is a refined BHC, which is that material that stinks. It
has been known to produce an off flavor in peaches, and it could very
easily make an off flavor in pecans. In tests before this on Meadow
spittle bugs on crops which might be used for food they did not use BHC,
which would be cheaper. There are four or five different forms of the
molecule that are important in making that and this gamma is the most
important. We used a pound of this 25% gamma lindane and that apparently
was the most successful. I didn't get this idea out of a clear sky. I
talked to Dr. G. C. Decker and read one or two articles showing where
they had been using dieldrin and lindane with the most success.

I guess that is all the slides now.

MEMBER: Do you get away from the bad effects of BHC by using lindane?

MR. CHANDLER: Yes. Now we feel that at any rate in the very short time
in which we have known anything about the thing we have at least learned
something about the pest and the distribution and the species and
apparently we have got a lead on control. Mr. Casper thinks there is no
reason why he shouldn't start in the first brood, although he has had
about four years build up of the thing and no wonder it is bad. If we
should try that another year, I would say we should start about the
middle of June, because when he looked on the 27th of June the show was
about over.

MEMBER: Your lattitude is about the same as Evansville?

MR. CHANDLER: Yes, Carbondale is almost on the due west line with
Henderson, Kentucky, and Anna is 20 miles south of Carbondale.

MEMBER: One hundred miles north would be about two weeks later.

MR. CHANDLER: Yes, I wouldn't be surprised if it wouldn't be later. We
thought maybe you might have to spray when the adults were out. We
didn't know whether any material would go through that spittle. We
thought you might have to spray and envelop the tree when the adults
were around.

MEMBER: I saw some spittle bugs in Northern Michigan on wild hazel, and
I am wondering if they are a pest on filberts.

MEMBER: We have no damage on filberts and I think we have spittle bugs
in St. Louis. Our f