THE CAMPHOR THRIPS. 



29 



the rate of 1 ounce to 100 cubic feet, with an exposure of one hour, 

 with safety to the trees and absolute control of the thrips in all 

 stages. 



LITERATURE CITED. 



1) Watson, J. R. 

 1913. New Thysanoptera from Florida. In Ent. News, v. 24, no. 4, p. 



145-147, pi. 6. 



2 ) 



1913. An unusual type of injury due to a thrips. In Jour. Econ. Ent., v. 6, 



no. 5, p. 413-414, pi. 11. 

 3) 



1913. Cryptothrips floridensis, a newly discovered pest of camphor. In Fla. 

 Agr. Exp. Sta. Ann. Rept. 1913, p. 67-69, fig. 7-10. 



4) Small, J. K. 



1913. Flora of the Southeastern United States. 2d ed., p. 821-822. New 

 York. 



5) Watson, J. R. 



1915. New Thysanoptera from Florida. In Ent. News, v. 26, no. 2, p. 49-52. 

 Page 52: Cryptothrips floridcnis. 



6) 



1915. Camphor thrips. In Fla. Agr. Exp. Sta. Ann. Rept., 1915, p. 71-72. 



7) Newell, Wilmon. 



1917. Report of the Plant Commission. In Fla. State Plant Bd. Quar. Bui., 



v. 1, no. 3, p. 59-123. 

 Page 100: Camphor thrips. 



8) Watson, J. R. 



1918. Thysanoptera of Florida. In Fla. Entomologist (Buggist), v. 1, no. 4, 



p. 53-55, 65-78. 



Page 73: Cryptothrips floridensis. 



9) Newell, Wilmon. 



1919. Report of the Plant Commission for the biennium ending April 30, 1918, 



and supplemental reports. In Fla. State Plant Bd. Quart. Bui., v. 3, 

 no. 2. 



Page 81: Camphor thrips. 



(10) Berger, W. W. 



1919. Work of the Entomological Department, State Plant Board. (In Proceed- 

 ings of the thirty-second annual meeting of the Florida State Horti- 

 cultural Society, 1919.) 



Page 168: Camphor thrips project. 



(11) Watson, J. R. 



1919. Native host plant of the camphor thrips. In Fla. Entomologist (Buggist), 

 v. 3, no. 2, p. 25-27. 



(12) Mason, Arthur 0. 



1922. Cryptothrips laureli, a new thrips from Florida (Thysanop.) In Ent. 

 News, v. 33, no. 7, p. 193-199, pi. 9. 



