75 



arrived, measures can also be directed against the eggs. In the govern- 

 ment of Poltava, oviposition takes place about the 25th May ; in 

 Charkov, ten days earlier ; in Cherson, at the beginning of May ; 

 while in the governments situated to the north of these it does not 

 occur until the end of June. When a burrow is discovered it can be 

 followed to the nest and the eggs destroyed. In autumn, the usual 

 dung "traps should be set [see this Review, Ser. A, i, p. 496 ; ii, pp. 42]. 

 Dung-heaps in or near market-gardens should be so placed and arranged 

 that the mole crickets which are certain to breed in them, cannot 

 escape into the garden. 



ViTKovsKY (N.). UJeeflCKafl MyiuKa, noepewAaiomafl osmvibie Bcxoflbi. 



[Oscinis frit injuring seedUngs of winter-sown grain.] — « H)}KHOe 

 Xo3flMCTBO.» [Southern Husbandry], Alexandrovsk, no. 18, 13th 

 October 1914, pp. 642-645, 5 figs. 



This article contains a popular account of the life-history of the 

 larvae of Oscinis {OscineUa) frit and of the injuries caused by them 

 to winter-sown crops. The adults oviposit on the leaves of grain 

 crops, on the panicles of oats, and on the ears of wheat. Several 

 generations occur during the summer, and after the harvest they 

 oviposit on germinating grain or on wild Graminaceae, on which they 

 breed until the winter-sown crops appear. The larvae injure the 

 stems, while those emerging from eggs laid on the ears injure the grain ; 

 they also attack maize. Winter crops should not be sown before the 

 middle or end of August, and weeds and germinating fallen grain 

 should be destroyed by deep ploughing after the harvest. Rotation 

 of crops should also be practised. 



Shavrov (N.). CpeflCTBO npoTMBTj nMMMHOKTj iwHbCKaro xpyma. [A 



remedy against the larvae of Rhizotrogus solstitialis .] — « flporpec- 

 CHBHOe CaflOBOflCTBO M OropOflHl1MeCTBO.» [Progressive Fruit- 

 Growing mid Market-Gardening], Petrograd, no. 40, 18th October 

 1914, p. 1230. 



The larvae of Amphimallus (Rhizotrogus) solstitialis are very 

 dangerous in sandy and porous soil. Placing a stratum of clay at 

 the bottom of the hole before planting trees is recommended as 

 affording a protection for the roots. 



Ol (L). riOBpemfleHie p031i HactKOMblMH. [Injury to roses by 

 insects.] — « flporpeccMBHoe CaAOBOACTBO m OropoflHM4ecTBo.» 



[Progressive Fruit-Growing and Market-Gardening], Petrograd, no. 

 41, 25th October 1914, p. 1261. 



In reply to a subscriber, the author says that the pest which injured 

 the shoots of his roses is the sawfly, Hylo'toma rosae, L., and gives some 

 information on this pest and on remedies against it. The imago 

 appears in May and the females pierce the yoang shoots with their 

 ovipositors, laying one egg in each wound and smearing it over with 

 a sticky mucilage. The larvae hatch in 8 to 10 days and devour the 

 leaves, with the exception of the veins. In June, they pupate in the 

 earth, producing a second generation in August, the larvae from which 



(C124) b2 



