10G 
FLORIDA STATE HORTICULTURAL SOCIETY 
not killed, only a very small per cent. 
Prof. Gossard—When were those re¬ 
ports issued? 
Mr. Porcher—I got them from Prof. 
Hilgard; their experience was that the 
eggs were not killed. 
Prof. Gossard—The object of the 
Horticultural Commissioners of Califor¬ 
nia as set forth at present is to use 
stronger doses of gas than formerly. 
They have increased their dose to one- 
half more than they used' a few years 
ago, and the purpose for which they do 
it is, they state, to kill the eggs of red 
scale, and other insects of like character; 
so I think they must have pretty good 
evidence that they are killed. Of course, 
with an open tent we cannot expect the 
thorough work that we would get in a 
perfectly air-tight fumigatorium, but I 
think we can kill most of the eggs. 
Mr. Gillett—I would like to ask if, in 
the treatment with the gas, it killed the 
red, brown and purple scales? 
Prof. Gossard—I did not make any in¬ 
vestigation with special reference to 
these. 
Mr. Gillett—Did it kill the lady-bug? 
Prof. Gossard—Yes, sir, about ninety 
per cent, of them. There are published 
statements saying that they are not 
readily killed, so I made special investi¬ 
gations with them, collecting two or 
three hundred ladybugs that had 
dropped, and maybe about ten per cent. 
of them recovered and crawled away, 
but the others were dead and staid dead. 
Question—Does it hurt the fungi? 
Prof. Gossard—Not the gas; it does 
not destroy plant life at all. 
Mr. Hart—How about mites? 
Prof. Gossard—I cannot say positively 
as to that. The trees that we were work¬ 
ing on had no mites that I noticed. I 
noticed that some of the case-bearing 
tineids came through all right. They 
seem to have been sheltered enough by 
their cases to come through without 
harm. The little case over them seems 
to be gas-tight enough to shelter them 
perfectly. 
Mr. Waite—Were not the trees in 
bloom in those Manatee county experi¬ 
ments? 
Prof. Gossard—The trees were com¬ 
mencing to blossom; a few of the bias- 
some were fully open, and a great many 
of the buds were open far enough so you 
could see the white of the bloom. 
Prof. Gossard here read a letter from 
Mr. C. P. Fuller, indicating that while 
results were variable, the fumigated 
trees were carrying good crops on the 
average. 
Mr. Porcher—Did I understand you 
to say the Australian lady-bug, Novius 
cardinalis, has been introduced into this 
State? 
Prof. Gossard—Yes, sir, at Clearwater 
Harbor. 
