139 



round each leg of the hive at some distance from the ground and another 

 of zinc of the same width about 4 inches higher. These rings are 

 connected with copper wire, giving rise to a very weak electrical 

 current sufficient to keep away the ants and even to destroy them. 

 They require no attention and remain active for an indefinite period. 



Sevastianov (I.). Knont— BpeflMient noiviMAopoB-b. [On a bug 

 injuring tomatoes.] — «TypKecTaHCKoe CenbCKoe Xo3aMCTBO.» 



[Agriadture of Turkestan], Tashkent, no. 6, June 1915, pp. 620-624. 

 [Received 21st February 1916.] 



During 1915, frequent complaints have reached the Entomological 

 Station at Tashkent of the injury by Dolycoris penicillatus, Kozv., 

 which is frequently found in company with Aeliaf areata, Fieb. The 

 former has not been previously reported as a pest, but it injures 

 tomatoes by piercing the skin of the fruit and sucking it, which 

 frequently results in bacterial disease setting in. D. penicillatus also 

 injures cereal crops by sucking the ^'^oung grain in the ears. Only 

 one generation occurs and the imago hibernates. The control of this 

 pest must be directed against the hibernating stage by burning the 

 stubbles on the fields and the wild plants surrounding them. Spraying 

 methods are hardly likely to be effective, but in small market -gardens 

 the insects may be collected by hand ; trenches round fields and 

 market-gardens are also useful. 



DOBRODEEV (A). fopOXOBbie CnOHMKM M Mtpbl 60pb6bl Cb HMMM. 



[Pea weevils, Sitones crinitus, 01., and Sitones lineatus, L., and 

 methods of controlUng them.] — «Tpyflbl Biopo no SHTOMOnoriw 



yneHaro KoMHTera MMHMCTepcTBa 3eMneAtnifl.» [Memoirs of 

 the Bureau of Entomology of the Scientific Committee of the Ministry 

 of Agriculture'], Petrograd, 1915, xi, no. 8, 32 pp., 12 figs. 



The early stages of Sitones crinitus and S. lineatus are described 

 and figured. The life-history of the two species is practically the same. 

 The adults appear early in spring, as soon as the snow disappears ; 

 in Central Russia usually at the end of April. Their food-plants are 

 peas, beans, lentils, vetches, clover, lucerne, lupins, etc. The chief 

 damage is done during May and decreases in June, when the weevils 

 begin to diminish in numbers. Another generation appears in August, 

 but is not injurious, as the weevils take little food, but during this 

 period the plants suffer from the attacks of the larvae on their roots. 

 The eggs are laid directly on the earth, mostly round the collar of the 

 plant. The egg stage lasts about 14 days. 



Various Carabid beetles, especially Ophonus (Harpalus) pubescens, 

 Mull., devour both the weevils and their larvae, while the Staphilinid, 

 Philonthus ebeninus, Grav., is always found among the larvae. 

 Measures such as spraying or reploughing are impracticable, as young 

 seedlings are scorched by the weakest possible solution of Paris green, 

 and reploughing is impossible in June and July, when the larvae are 

 most active. On limited areas and before the weevils can fly, the 

 fields can be protected with some success by boards smeared with 

 a sticky material and sunlc a few inches into the ground. 

 Fumigation with smoke from heaps of burning straw proved 



(C253) b2 



