88 
FLORIDA STATE HORTICULTURAL SOCIETY 
greater number seem more efficient than 
much larger fires in less number. Also 
there is less injury to low growing 
branches, from the flame. This method 
is even more desirable during hard frosts 
than a real freeze with wind, when the 
heat is circulated into the trees, rather 
than passing directly upward. 
We believe that some efficient method 
of grove heating is almost a necessity to 
successful citrus growing, except in such 
localities as have a natural protection 
from large bodies of water. These cold 
snaps are sure to recur at intervals, caus¬ 
ing large losses and possibly destruction 
of the entire tops of the trees. In our 
situation, on the banks of a wide river, 
windbreaks also are necessary, as other¬ 
wise the heat is swept away. This winter 
I believe that our fires would have accom¬ 
plished nothing without windbreaks. The 
wind attained a velocity of something like 
60 miles per hour and the temperature 
went to 20 degrees where it remained for 
about four hours. 
