Aug. 20, 1917 Cyclamen Mite 389 



In transplanting into the flats do not crowd the plants too much, as it 

 is difficult to get the spray on the developing young leaves, and it is the 

 young growth that should be protected. A good spraying apparatus for 

 this purpose is a compressed-air hand outfit which will give sufficient 

 force. 



Some growers have recommended the use of pyrethrum by blowing the 

 powder into the base of the plants with a small blower. The man using 

 the powder should cover his mouth and nostrils with a piece of damp 

 sponge to prevent any unpleasant consequences. The writer has not 

 tried this method out, and can not speak for or against the method. 



The mites usually attack cyclamen first during the dry weather. Poor 

 cultivation, insufficient ventilation, and moisture encourage mite attack. 

 Cyclamen particularly need a great deal of attention and care for their 

 proper development. Nevertheless, the mites will attack vigorous 

 plants, and a preventive measure should be employed. 



LITERATURE CITED 

 (i) Banks, Nathan. 



1899. TARSONEMUS IN AMERICA. In Proc. Ent. Soc. Wash., v. 4, no. 3, p. 

 294-296, fig. 17. 



Tarsonemus pallidus, n. sp., p. 295-296. 

 (2) 



1912. NEW amEbmcan mites. In Proc. Ent. Soc. Wash., v. 14, no. 2, p. 96-99, 

 2 pi. 



Tarsonemus waiiei, n. sp. 



(3) 



1914. NEW acarina. In Jour. Ent. and ZooL, v. 6, no. 2, p. 55-63, 3 pi. 



Tarsonemus approximaius, n. sp., p. 60 

 Tarsonemus assimilis, n. sp., p. 60. 



(4) 



1915. A REVIEW OP THE GROUP FOR THE USE OP ECONOMIC ENTOMOLOGISTS. 



THE ACARINA OR MITES. U. S. Dept. Agr. Rpt. 108, 153 p., 294 fig. 

 Bibliography, p. 143-146. 



A bulletin giving the characteristics of various of the families of Acarina. 



(5) Britton, W. E. 



1913. MITES ON CHRYSANTHEMUM PLOWERS. In Gsnn. Agr. Exp. Sta. i2tli 

 Ann. Rpt., 1911/12, pt. 3, p. 296. 



(6) Britton, W. E., Walden, B. H., and Lowry, Q. S. 



1915. EXPERIMENTS IN CONTROLLING A MITE (TARSONEMUS PALLIDUS BANKS) 

 INJURING SNAPDRAGON PLANTS IN THE GREENHOUSE. In Gann. Agr. 



Exp. Sta. Ann. Rpt. 1913/14, pt. 3, p. 176-179. 



No data are given on control methods and life history of the Cyclamen mite. 



(7) CanEstrini, Giovanni, and Fanzago, F. 



1876. Nuovi ACARi ITALIANI. In Atti Soc. Veneto-Trentina Sci. Nat. Padova, 

 V. 5, fasc. I, p. 99-111, 130-142. 

 Original description of the genus Tarsonemus. 



(8) Marchal, Paul. 



1902. LES TARSONEMUS DES GRAMINEES. DESCRIPTION d'uNE ESPECS 



NOUVELLE viVANT SUR l'avoinE [arachn.]. In Bul. Soc. Ent. 

 France, 1902, no. 4, p. 98-104, 3 fig. Auteurs cites, p. 104. 



Tarsonemus spirifex, n. sp., p. 99. 



