Report on the Manatee Snail and White Fly. 
BY F. D. WAITE. 
Mr. Presidentj Ladies and Gentlemen: 
Our President recently asked me to get 
up a paper on the white fly and Manatee 
snail, the latter having been brought to the 
notice of the fruit growers within the past 
six months, and several descriptive articles 
have been published and copied into the 
leading papers of the State. I have 
brought a few specimens with me, also 
another specie of snail which may play a 
part in the cleaning up of the sooty mould, 
as we have found it feeding on the lichens 
several feet high on the trunks of old seed¬ 
lings. 
Messrs Butler and Heathcote of St. 
Petersburg sent me several dozen snail 
found feeding on the Mangrove at Passe- 
a-Grille, these were put around a tree dur¬ 
ing early winter and protected with sacks, 
but all died, I hope this summer to make 
another trial with them. 
I am sorry to say that parties have 
visited the grove where the Manatee snail 
was first discovered and stolen so many 
that we can hardly find any left, and our 
neighbors who afterwards discovered 
them in their groves, have been treated 
in like manner. 
From observations already made I be¬ 
lieve the snail is not active during cold 
or dry weather, neither do I think they 
increase until the rainy season, and dur¬ 
ing the foggy weather in early fall and 
winter, when they become most active in 
ridding the trees and fruit of the sooty 
mould. Those wishing to become famil¬ 
iar with the white fly and its enemies 
should procure Press Bulletin No. 4. is¬ 
sued May 1st, 1901, Press Bulletin No. 
59 of January 15th, 1906, Bulletin No. 
67 of June, 1903, and Bulletin No. 13 
issued by the U. S. Department of Agri¬ 
culture June 17th, 1897. There is another 
report of the Entomologist Prof. H. A. 
Gossard from July ist, 1900 to July ist, 
1901. 
All of the above reports cover the 
ground completely. I have a copy of Press 
Bulletin No. 59 with me, and if it is the 
pleasure of this Society I will read the 
same. 
THE MANATEE SNAIL, BULIMULUS 
DORMANI. 
(Press Bulletin No. 59, Florida Agri¬ 
cultural Experiment Station. Depart¬ 
ment of Entomology.) 
The sooty mold of orange, Meliola, is 
one of the most serious results of white fly 
infestation of citrus groves, and is an 
element in the injury to various plants 
from aphids and from some of the scale 
insects especially the Lecaniums, mealy 
bugs, wax scales, and cottony cushion 
scale. Tfee fungus is not itself a parasite 
on the plant, but a saprophyte, deriving its 
sustenance from the sweet honey dew 
secreted by these insects. The injury to 
the plant results from the smothering 
action of the fungus, the heavy coating of 
