
THE PRINCIPAL ae hoger THE TOBACCO 
LANT. 
INTRODUCTION. 
The tobacco plant, although indigenous to America, does not suffer 
so greatly from the attacks of insects in the United States as do others 
of our crop plants. It has no insect enemies peculiar to itself, but 
every season a certain amount of damage is done by insects, and in 
some years favorable to insect increase this damage may mean a 
Serious loss to the planter. 
The most comprehensive work upon tobacco insects which has been 
published is in the Italian language, and includes a consideration of 
all species which affect this crop, both in the field and in the factory. 
But this work treats largely of European insects, being a special 
report of the entomological agricultural experiment station at Flor- 
ence, entitled ‘‘Animals and insects of growing and dried tobacco,” 
by Prof. A. Targioni-Tozzetti. In this country there have been ocea- 
sional accounts of specific insects in the different agricultural reports 
and in the bulletins of the State experiment stations. Prof. H. Gar- 
man, of the Kentucky experiment station, in particular, has given 
the subject much attention, and has done admirable work in the 
important direction of proving the possibility of the practical use of 
arsenical mixtures on the tobacco plant. The most comprehensive 
article which has yet been prepared in this country is one printed by 
the Florida Agricultural Experiment Station as Bulletin No. 48, with 
the title ‘‘A preliminary report upon the insect enemies of tobacco in 
Florida,” by A. L. Quaintance. 
The present paper contains accounts of several tobacco insects not 
included in the bulletin by the Florida author, who, as the title indi- 
cates, treats only of the species occurring in Florida, but the writer 
defers to Professor Quaintance in matters of actual field experience 
concerning several of the species, and wishes here to express his 
thanks for advance proof sheets of the bulletin in question, which 
have enabled him to make this paper more complete than it would 
otherwise have been. | 
From the time when the seed is sown in the seed bed to the time 
when the tobacco field is plowed under to some late fall crop, the 
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