377 



local authorities should be able to consider their suggestions and 

 lecommendations in time for the required measures to be put into 

 operation. The permanent Agronomical Council of the Ministry of 

 Agriculture in Caucasia is to coordinate the work of the Bureaus with 

 that of existing experimental and similar organisations. In 

 accordance with local requirements each Bureau may have experts 

 on Entomology, Zoology and Phytopathology. The general outhnes 

 ■of these regulations are contained in a report presented by B.P. 

 Uvarov, which is printed as a supplement, as are also the minutes of 

 the conference which decided upon them and a number of opinions 

 from heads of many Entomological Stations and Bureaus in Russia, 

 to whom the report had been submitted. 



We are informed by B. P. Uvarov that three of the four projected 

 Bureaus are already in existence, viz., in Tifiis, which is in his charge, 

 Ms assistant being A. 0. Fabrikant; in Elisavetpol, in charge of 

 E. V. Jatzenkovsky and Z. S. Rodionov ; and Baku, in charge of 

 A. F. Radetzky and M. P. Kryshkevitch ; no appointments have yet 

 been made to the Bureau in Kutais. 



RoDziANKo (V. N.). HtKOTopbixTj HactKOMbixTj , noBpewflawiMMXTj 

 flpeeecHbifl HacamfleHifl bt* FlpuQanTiMCHMxiD ry6epHmx-b. OTsen* 

 fltflienbHOCTM BTj 1915 rOfly. [On certain insects, injuring tree 

 plantations in the Baltic governments. Report on the work in 

 1915], Pctrocjrad, 1916, 30 pp. 



This is the second report of the Laboratory of Forest Entomology 

 in Riga for the first half of 1915 and contains some data supplementary 

 to the report for 1914 [see this Review, Ser. A, iii, p. 217]. Owing to 

 the war, the Laboratory was removed from Riga in June 1915 and is 

 310W in Novgorod. 



The follo^\ing are the insects dealt with : — Curculionidae : 

 Hylobius abietis, L., damaged the stems of pine-seedlings in one forest 

 in Courland. In May and June 1915 the weevils were also found on 

 ;some two- to five-year-old pine trees, the bark of the leading shoots of 

 which was damaged. This pest should be controlled by removing 

 .stumps in the roots of which the larvae live, and collecting the adults 

 by means of trap trenches, or baits of fresh pine bark. Spraying with 

 milk of lime may also be useful before the beetles have injured the 

 trees. Pissodes notatus, F., was also injurious in one forest of Courland, 

 where it destroyed some small pine seedlings. Rhynchaenus testaceus, 

 Mull. {Orchestes scutellaris, F.), damaged the foliage of various trees, 

 especially those of Alnus incana. The adults of Magdalis dwplicata, 

 Germ., were found in May 1914 and June 1915 near Riga, on the shoots 

 •of young pines. The larvae of Brachonyx pineti, Payk. {indigena, Hbst.), 

 live inside the young needles of pines, pupation taking place within the 

 needle. The weevils hibernate and oviposit in May, the next generation 

 appearing in the middle of the summer. Strophosomus capitalus, 

 De G., {obesus Marsh.) was found in forests near Riga, mostly on pines, 

 the young needles of which they injure. They were also found on 

 Betula verrucosa destroying the young leaves. Brachyderes incanus, L., 

 :also feeds on pine-needles, small cavities being eaten out at the tips. 

 The tubes formed by Apoderus coryli, L., were found on Alnus incana, 

 <Corylus avellana and Betula pubescens, those of Rhynchites betulae, L., 



