167 



Balabanov (M). Bopb6a cb 6yKapK0M mam nMCTOBbirb cnoHHKOMii. 



[The control of Rhynchites pauxillus.] — riporpeccilBHOe CaflO- 

 BOACTBO M OropOAHM48CTBO.» [Progressive Horticulture and 

 Market-Gardening], Petrograd, xiii, no. 8, 5th March 1916, 

 pp. 245-246. 



The author is of opinion that Rhynchites pauxillus hibernates partly 

 in the soil and partly in cracks of the bark of trees and that the weevils 

 are able to fly early in spring, particularly in warm, fine weather. 

 This view is at variance with that of some other authors, who believe 

 that the insects do not fly at that season, but, having emerged from 

 the earth, creep on to the trees. If Balabanov's opinion be correct, 

 it would render the application of tanglefoot more or less useless. 



It is also pointed out that if the sticky belts are put on before 

 spraying with milk of lime, the effect of the latter is to cover the surface 

 of the adhesive with a thin layer of lime, over which the insects are 

 able to pass unharmed. 



Vassiliev (Eug. M.). noctmaeicfl nw aKOHMT-b HactKOMbiMM ? 

 [Do insects visit Aconite plants ?] — «nporpecCMBHOe CaflOBOACTBO 

 H OropOAHMMeCTBO. » [Progressive Horticulture and Market- 

 Gardening], Petrograd, xiii, no. 8, 5th March 1916, pp. 247-248. 



The author disputes the statement of V. Gomilevsky that aconite 

 plants are never visited by insects [see this Review, Ser. A, iv, p. 58]. 

 Various insects attack this plant, as was recorded by Kaltenbach in 

 1874 ; they include the Chrysomelids, Crepidodera cyanescens, Duft., 

 and C. alpicola, XJlr. ; Arctia caja, L. ; the Noctuid, Amphipyra 

 tragopogitiis, L., the caterpillars of which devour not only leaves of 

 aconite but also of Delphinium, containing an alkaloid which is 

 deadly to caterpillars of Euxoa. The caterpillars of Phytometra 

 (Plusia) variabilis. Filler, and Chrysoptera (Plusia) moneta, F., injure 

 the leaves of aconite, which are also mined by larvae of Phytomyza 

 nigricornis, Meig., and attacked by Aphis napelli, Schk. 



SopoTZKo (A. A.). BpeAHbi hh ctMeHHOMy Knesepy wyKM-ctMntAbi 

 pOAa Apion? [Are weevils of the genus Apion injurious to seed 

 clover?]— «X03flMCTB0.» [Husbandry], Kiev, xi, nos. 1-2 & 

 7-8, 28th January & 10th March 1916, pp. 15-20 & 125-137. 



This paper disputes the accuracy of the work of T. Shtcherbakov 

 on this subject [see this Revieiv, Ser. A, iii, p. 641 and A, iv, p. 142]. 

 Shtcherbakov bases his conclusions partly on examination of clover 

 in 1914, when these weevils appeared in small numbers, as predicted 

 by the author in his report for 1913-1914 [see this Revieiv, Ser. A, iii, 

 p. 634]. The author reiterates his statement that the larvae of Apion 

 devour the ovaries, each individual being able to destroy 7-9 ovaries, 

 besides gnawing a burrow in the base of the inflorescence before 

 pupating, causing all the flowers situated above this point to wither. 

 A number of statistics are given to support these statements. 



