94 



be burnt. Adelphocoris lineolatus, Goeze, was found amongst the 

 crops, ovipositing and sucking the buds and young leaves of the trans- 

 planted beet ; the destruction of the stems after the removal of the 

 seeds is recommended as a remedy. Cassida nebulosa, L., and its 

 larvae occur in some numbers owing to the abundance of Atriplex 

 on which they preferably feed and oviposit, and this weed should be 

 destroyed; spraying with barium chloride is also advised. Bothy- 

 noderes punctiventris, Germ., is as yet found in small numbers, but 

 may increase in the future if beetroots are repeatedly sown on the 

 same spots. Transplanted beet should never follow beetroots, as the 

 former affords the most favourable conditions for the development of 

 these weevils, the soil between the beds being less subjected to cultivation. 

 Spraying the transplanted beets with barium chloride and surrounding 

 them with trap trenches is recommended ; these latter may also be 

 useful against caterpillars of various species of Euxoa and Barathra. 

 The introduction of rotation of crops in the province is urgently 

 required. 



The beetle, Podo7ita nigrita, F., was observed to devour the blossoms,^ 

 the bracts and the juicy heads of beet-roots and to gnaw the stalks. 

 Another species of the same family, Cistelidae (Alleculidae), 

 Cteniojms sidphureus, L., is already known as a pest of sugar-beet ; 

 while the species of the genus Onophlus are known to injure 

 cultivated cereals. The imago of P. nigrita, the biology of which is still 

 unknown, is figured and described, but it is thought that the larvae 

 may live in the soil, as do those of Onophhs, and as Reitter believes 

 to be the case with the larvae of Cteniopus. P. nigrita, also known 

 as Cistela nigrita {oblonga, 01.), occurs in Hungary, Tyrol and 

 Switzerland as a pest of wheat and this may be the case in the province 

 of Kuban, the beetles passing over to beetroot plantations when the 

 grains of wheat become too hard. 



Another species, P. flecki, Reitt., is known in the Dobrudscha, 

 while in South Russia and East Caucasia, P. daghestanica, Reitt., 

 occurs, and in the Caucasus, P. morio, Kiesw., (known also in Greece) 

 and P. elongata, Menetr. Like Anisoplia, these beetles are usually 

 active on the borders of the fields. Handpicking is the only known 

 remedy at present. 



ErannereHb o BpeAHTejiflxi) cenbCKaro xosHMCTBa m Mtpaxii 6opb6bi Cb 

 HMMM. [Bulletin of the pests of Agriculture and methods of 

 fighting them.] Published by the Entomological and Phytopatho- 

 logical Bureau of the Zemstvo of the govt, of Charkov. Charkov, 

 no. 6, November 1914, 12 pp. 



The following articles relating to Entomology appear in this 

 number of the Bulletin, 



Vassiliev (Eug. M.). sanacaxij xnopMCiaro 6apifl bi» PoccIm. 



[On the stock of barium chloride in Russia], pp. 1-3. 



Bari m chloride as an insecticide is used throughout the southern 

 sugar-beet-growing area of Russia against Bothijnoderes punctiventris, 

 Germ. On the advice of Mokrzecki it is now also applied against 

 Phlyctaenodes sticticalis, L., and various species of Hypo'nomeuta, 



