21 



GuzHAviN (T. A.). CaA"b — HOe 6oraTCTBO. [Orchard — my wealth.] — 

 Supplement to « flporpeccMBHoe CaAOBOflCTBo M OropoAHM- 

 4eCTB0.» [Progressive Horticulture cfe Market-Gardening], 

 Petrograd, 1915, 2 vols., 247 pp., 136 figs. 



A special chapter of this book deals with insect pests and remedies 

 for them, a short life-history, etc., being given of the following 

 insects injurious to orchards :■ — Aporia crataegi, Lymantria disjxir, 

 Ewprodis chrysorrhoea, Malacosoona neustria, Cheimatobia hrmnata, 

 Cydia pomoneUa, Hyponomeuta malinellus, Anthonmnus pomorum, 

 Psylla mali and Aphis pomi. Melolontha is dealt with as a pest of 

 strawberries ; Bembecia hylaeiformis and Byturus tomentosus, as 

 pests of raspberries ; Incurvaria capitella, Aphis ribis and Aegeria 

 sp., as pests of currants ; Abraxas grossulariaia and Pteronus ribesii, 

 as pests of gooseberries. Particulars of insecticides, sprayers and 

 instructions as to spraying are also given. 



Borodin (Dm.). BopbOa cij SMMHeii nflAeHHueM m nnAeHnueii o6am- 

 pa/lO. [The control of Cheimatobia briunata and Hibernia defo- 

 liaria.] — « XyiopflHHHTj.* [Chutorianiri], Poltava, nos. 40-41, 

 24th October 1915, pp. 852-856, 6 figs. 



Outbreaks of Cheifnatobia brumata occurred during the summer of 

 1915 in many districts of Poltava and in some of the neighbouring 

 governments. The life-history of this pest and the damage done by it 

 are shortly dealt with, as well as that of Hibernia defoliaria, which was 

 also present. The following remedies are recommended :• — Spraying 

 with djipsin, 1 lb. in from 40 to 48 gals, water, 4 pints of molasses being 

 added to render it adhesive, or Paris green (| lb. of green and l^lb. of 

 unslaked lime in from 55 to 60 gals, water) early in spring before the 

 buds open ; digging the soil beneath the injured trees at the end of 

 May, when pupation is taking place ; the use of sticky belts. 



Borodin (D.). XntSHbm nMnbmMKT* Ha sanaAHOMij onbiTHOM"b nojit 

 Ciaepanonb- KaBKascKOti c.-x. onbiTHon ciaHi^iM. [Cephiis 

 pygmae}is, L., on the western experimental field of the Agricul- 

 tural Experimental Station of Stavropol, Caucasus.] — - « XoSflM- 

 CTBO.» [Husbandry], Kiev, nos. 33-34-35-36, 1915, pp. 876-883. 



The results of the examination of a large number of samples of the 

 stubble of barley and winter and spring sown wheat in the autumn of 

 1913 are recorded. The sawflies reared in the following spring showed 

 a great prevalence of Cephas pygmaeus, L., only a small minority 

 being Trachelns tabidus, F. About 5 per cent, of these pests were 

 infested by the Ichneumon, Collyria calcitrator, Grav., and the Chalcid, 

 Arthrolysis {Picroscytus) scabricida, Nees. The author gives a number 

 of tables which can be summarised as follows :- — (1) Barley showed a 

 comparatively low infestation, all the various sorts being attacked in 

 nearly the same degree. (2) Thinly sown barley was more infested ; 

 this may be due to the greater thickness and development of the stems, 

 and this is in accordance with the statements of Lokot and Kurdjumov 

 that these pests mainly attack strong and well developed plants. 



