INSECT ENEMIES OF TOBACCO IX FLORIDA. Ill 



from the worms took place it was supposed that the emulsion had the 

 desired effect. 



It seems to the writer desirable that kerosene emulsion he used in 

 the water when transplanting as a repellent to both cutworms and 



wire worms. 



LEAFHOPPERS OR SHARPSHOOTERS. 



There are two species known as sharpshooters of cotton that were 

 commonly observed in the tobacco field. These have been determined 

 by Mr. Otto Heidemann as Aulacizes irrorata Fab. and Oncometopia 

 lateralis Fab. The latter species was supposed by one planter to 

 injure the bud, specimens being collected and handed the writer. 

 The work of the budworm, however, must have been mistaken for 

 that of these insects, as the sharpshooter can not be the source of an 

 appreciable injury to the plants. 



THE CIGARETTE BEETLE. 



(Lasioderma testaceum Dufts.) 



This pest seems to be present in small numbers in nearly all pack- 

 ing houses, occasionally causing some considerable injury to the 

 tobacco in bulk. 



REMEDIAL PRACTICES. 



Cheese cloth is used to furnish shade for tobacco on a considerable 

 acreage in place of slats. In connection with the insect problem it 

 has an advantage over slats in that it keeps the insects out to a large 

 extent. The slats, however, do much to keep out the hornworm 

 moths, the worms being much more numerous on sun tobacco. It 

 is equally important, however, whether cloth or slat shade be used, 

 that the sides be kept patched and the gates closed, which fact does 

 not seem to be appreciated by many planters. 



Commencing while the plants are in the seed bed. kerosene emul- 

 sion and Paris green should be applied. These applications must be 

 continued, the emulsion twice a week until plants are half grown, the 

 Paris green in the blowgun twice a week from the lir>t appearance 

 of hornworms. Paris green and corn meal must uecessarily be 

 applied at least twice a week, commencing as soon as the plant- are 

 transplanted. 



Mr. Britton stated that the cucumber flea-beetle had caused con- 

 siderable injury to tobacco plants in Connecticut; that he had dipped 

 the plants, roots and all. in a wash made o( 1 pound oi' arsenate of 

 lead to 10 gallons of water. This treatment did not injure the plants. 



