283 



first is discussed. The author advises a trial of six or seven rounSs 

 of plucking all visibly attacked shoots and all non-infested shoots 

 ripe for plucking, in spite of the cultural objections to heavy plucking. 

 Prunings must be burned or buried. 



ZviEREzoMB-ZuBovsKv (E.). Maxepjajibi ktj nosHaHJio BpeflMie/ieM 

 H BontsHeii CejibCKOxosniicTBeHHbix'b PacreHiM Aohckom OO/iacTM 

 (CnHCOKTj JlMTepaTypbl). [Material for the Study of Pests and 

 Diseases of Agricultural Plants of the Don Province (Index of 

 literature).:— OTfltjTb SeiwneycTpoMCTBa M Seivinefltnm. Ce/ibc- 

 KOxosflPicTBeHHafl HacTb. Erapo no 6opb6t cb BpeAMTejinMM 



Ce;ibCK0X03fliiCTB. PacieHiil. [Div. Agron., Agric. Dept., Bur. 

 Control of Pests of Agric. Plants], Novoicherkassk, 1919, 14 pp. 

 [Received 23rd March 1922.] 



This hst contains all the available literature known to the compiler 

 concerning the injurious fauna and flora of the Don region. 



Speare (A. T.). Massospora cicadina, Peck, a Fungus Parasite of the 

 Periodical Cicada. — Mvcologia, xiii, 1921, pp. 72-82, 2 plates. 

 (Abstract in Rev. A pp. My col. Keiv, i, pt. 3, March 1922, p. 65.) 



Massospora cicadina, a fungus infesting Tihicen septemdecim, is 

 described. It is not known to occur on any other host, and on this 

 species is largely confined to the male insects. It is not known how 

 it is perpetuated. 



Paczka (A.). El Cultivo del Tabaco en Tlapacoyan. — Rev. Agric, 

 Mexico, vi, no. 11. March 1922, pp. 617-623. 



In the tobacco-growing district of Tlapacoyan, which includes parts 

 of the States of Puebla and Vera Cruz, beds of tobacco seedlings 

 are frequentlv injured by ants that attack the seeds. The latter should 

 be dipped in kerosene before sowing. Kerosene emulsion is used 

 against Aphids, which are troublesome, as they cause discoloration and 

 consequent lessening of the value of the leaf. 



Among the worst enemies of the growing plants are the Sphingids, 

 Protoparce celeus [R.A.E., A, viii, 364] and P. Carolina [R.A.E., 

 A, viii. 527]. 



Ghesquiere (J.). Laboratoire d'Entomologie d'Eala (Equateur). 

 Rapports de I'Entomologiste.— 5////. Agric. Congo Beige, Brussels, 

 xii, no. 4, December 1921. pp. 703-732, 17 figs. [Received 24th 

 March 1922.] 



Dysdercus super stitiosus, D. nigrofasciatus and D. ugandaniis are 

 the cotton-stainers occurring at Manyema in the Belgian Congo. 

 Cotton attacked by these bugs is subject to secondary attack by the 

 fungus. Neocosmospora vasinfecta. The chief food-plants of Dysdercus 

 in the Belgian Congo are native cotton [Gossypium barbadense) and 

 other Malvaceae, a list of which is given. The remedial measures 

 advocated include clean cultivation, the destruction of wild Malvaceous 

 plants at the beginning of the rainy season, and the selection as far as 

 possible of the more resistant varieties of cotton. 



The natural enemies of Dysdercus are a Reduviid and the fungus 

 Sporotrichum globuliferum. 



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