FLORIDA STATE HORTICULTURAL SOCIETY 
45 
every trace of bordeaux had vanished 
from these checks, the other trees treated 
with the linseed oil bordeaux appeared 
as if they had been freshly sprayed. 
The efficiency of the bordeaux appear¬ 
ed not to have been diminished in the 
least by the addition of the oil. For in¬ 
stance, the leaves of fig trees generally be¬ 
come diseased by a fungus and shed early, 
but in this instance the sprayed foliage of 
the fig tree remained comparatively healthy 
and on the tree until killed by frost, 
about the middle of December, by which 
time all other trees observed in town had 
lost their foliage, some much earlier. 
This tree was not sprayed during 1916, 
when its foliage became diseased and be¬ 
gan to drop in September. Again, the 
two satsuma trees sprayed with the lin¬ 
seed oil bordeaux did not have much 
whitefly upon them at the time they were 
sprayed (August, 1915), but became 
heavily infested during September 
and October, principally from the swarms 
of this insect that emanate from the china- 
berry trees in town at that time. The 
leaves of the new growth that had put out 
after the trees were sprayed became black 
with the sooty mold, that always accom¬ 
panies infestation by whitefly, but the 
older leaves that were covered with the 
bordeaux never showed more than a trace 
of it. 
Injury to foliage was not noted except 
on the fig tree, when the drip from leaves 
above was concentrated on one or sever¬ 
al spots of leaves lower down. 
MISCELLANEOUS RESULTS AND EXPLANA¬ 
TIONS 
The bordeaux used was made fresh 
each time, except one lot of two gallons 
that had been prepared two weeks pre¬ 
viously. This old bordeaux was mixed 
with three per cent linseed oil just before 
using and was applied as readily as fresh 
bordeaux and appeared to stick as well. 
It had a decidedly transparent appear¬ 
ance, however, after drying, as compared 
with freshly made bordeaux. I am not 
aware that this fact is of any significance 
and a repetition of the experiment may 
show it up differently. The tempera¬ 
ture at the time of applying also seemed 
to influence the appearance of freshly 
made linseed oil bordeaux on the trees. 
Another interesting observation, and 
probably important, was made with this 
old bordeaux: about one-half pint of it 
with three per cent linseed oil was shaken 
together in a narrow bottle and another 
one-half pint without oil, was shaken in 
another bottle of the same kind at the 
same time. 
After allowing five minutes' time for 
the bordeaux in each bottle to settle, the 
settled bordeaux in the bottle with oil 
occupied about 1-3 of the depth of the 
mixture in the bottle, while in the bottle 
without oil it occupied only 1-6, indicat¬ 
ing a decided influence of the oil on the 
settling properties of bordeaux. 
Raw linseed oil was used because a sup¬ 
ply was at hand, but boiled oil is believed 
to be just as good, if not better, and 
should dry quicker, a matter of some im¬ 
portance when it is necessary to make ap¬ 
plications of bordeaux between rains. 
The writer has simply not found time to 
make tests with boiled oil. Three per 
cent oil was taken because that quantity 
appeared sufficient, but less may serve as 
