96 
FLORIDA STATE HORTICULTURAL SOCIETY. 
them tested out alike, but they were all 
under the same name. Now, what would 
be the economy in trying these different 
compounds out ? 
The proprietary insecticide business is 
in such a hopeless muddle that we cannot 
get head nor tail to it until we get laws 
regulating this just as the fertilizer and 
pure food is being handled. It would 
keep a corps of chemists busy to test out 
all the insecticides that come to the Ex¬ 
periment Station. A great number of 
them are practically the same thing. A 
great many of the analyses show that it is 
the same identical thing with four or five 
different names. We haven‘t time to 
bother with them all. I assure you that 
time is a commodity with us, very little 
of which is wasted. 
Mr. Porcher: I agree with you gen¬ 
tlemen in all that; what I am trying to 
get at is that some method should be de¬ 
vised to have these patent insecticides 
tested out, because I am quite confident 
some of them are valuable. Now, the firm 
I mentioned this morning; the Cooper 
Nephews. They have produced a 
sheep dip the value of which is beyond 
question. My tests with it as an insecti¬ 
cide have been extremely favorable. 
I think we ought to come to these meet¬ 
ings and feel when we go away that we 
have found out something that will be of 
value to us. We come here and we hear 
long papers, and the next man will get 
up and tell you he doesn’t think what the 
first man says is very much good, as he 
didn’t have much success with it, and then 
a third man gets up and tells you his way 
is right. 
Personally, I do not believe for one mo¬ 
ment that we will ever succeed in exter¬ 
minating the whitefly by fungus. My be¬ 
lief is that it will be through spraying, 
or possibly through fumigation. While I 
have not, personally, any whitefly in my 
grove, I probably will have it in time, un¬ 
less we find out something that we know 
will keep it in check. I consider it a most 
serious menace. We know that fruit that 
has been preyed upon by the whitefly, has 
lost its value. You may wash it and send 
it to market, but if the consumer has any 
taste in his palate, he will not purchase 
it again. Our only method is to exter¬ 
minate that fly and, in my opinion, the 
only way to do it is by spraying in some 
form. 
Mr. Mills: It has been several years 
since I have been at one of these meet¬ 
ings. We come here to learn things and 
I came purposely to hear this whitefly dis¬ 
cussion. In Jacksonville, we do not have 
orange trees, but we have to fight it in 
the hedges. We have tried Whale Oil 
Soap; we have tried several of these pat¬ 
ent remedies, but we have had the best 
success with the William Cooper Neph¬ 
ews’ V. I. Tree Spray. There is the V. I. 
and the V. II, and we find that it gives 
the best results; better than either 
Schnarr’s or Target Brand. 
Dr. Back: We have tested the V. I. 
spray and our results do not quite agree 
with those of Mr. Porcher. At the rec¬ 
ommended strength it kills but little over 
50 per cent, of the fly when the fly is in 
the younger stages, and a very much 
smaller per cent, when the fly is largely 
in the pupal stage. Tests conducted un¬ 
der identical conditions with effective 
