495 



Great damage was done in many localities, the whole of the crop of 

 rye and to a less degree of winter-sown wheat being destroyed in many 

 cases. 



In some fields, when the crop had been destroyed, the caterpillars 

 afterwards attacked certain weeds, especially thistles. Late-sown rye 

 and winter wheat suffered less. 



Balabanov (M.). Kii Bonpocy o 6opb6t cb fl6iiOHHbiM'b uetTotAOM-b. 



[On the c{iiestion of the control of Anthonomus pomorum.] 

 — « n/10A0B0ACTB0.» [Fruit-Groiving], Petrograd, xxvii, no. 8-9, 

 August-September 1916, pp. 366-370. 



Anthonomus pomoruni is not only one of the most dangerous pests 

 of orchards, but also most difficult to control. The majority of the 

 remedies usually recommended against the adults and the larvae are 

 of limited practical value. Belts of adhesi\.^e paper placed on the 

 trees in April, although instrumental in intercepting a considerable 

 number of the weevils, mostly the females before oviposition, are far 

 from being a complete remedy, as enormous numbers fly from tree to 

 tree. In years when the soil in August and September is wet, good 

 results have been obtained by using belts made of chopped reeds and 

 straw, as apparently in wet years the weevils do not hibernate in the 

 soil if they can find shelter in drier spots. Smearing the trunks and 

 branches with milk of lime is regarded as a reliable preventive, if pro- 

 perly prepared and applied, but this is only a partial protection, as the 

 weevils also hibernate on forest trees. Spraying in April with lime 

 or with crude carbolic acid (|--2 lb. of the acid in 3 gals, of water), 

 is only a temporary deterrent, and it is only when this is carried out 

 during the short period of oviposition and repeated after a day or 

 two, that oviposition may be delayed and the buds allowed to unfold 

 before being attacked by the larv^ae. 



S. V. saMtHt KBaccifl Ta6aH0M"b. [On the replacement of quassia 

 by tobacco.] — « nnOflOBOflCTBO.» [Fruit-Groiving], Petrograd, 

 xxvii, no. 8-9, August-September 1916, pp. 378-379. 



As a substitute for quassia decoction and soap, tobacco and soap 

 may be used, 1 lb. tobacco leaves being boiled in 3 gallons of 

 water to which | lb. of soap is subsequently added. After describing 

 the process of preparing tobacco extract [see this Review, Ser. A, iv, 

 p. 380], it is stated that it may be preserved by adding 1 gram of 

 salicylic acid to each pint. For use, 5-10 lb. of the extract is dissolved 

 in 30 gallons of water, 5 lb. of soap being added. 



GoLiTZYN (S). PeayjibTaTi* npoiunoroAHeM 6opb6bi ci. MeAHHMueM 

 OKypMSaHieMli cafla. [The result of last year's attempt to control 

 Psylla by means of fumigation.] — « rinOAOBOACTBO.» \Fruit- 

 (Trowing], Petrograd, xxvii, no. 8-9, August-September 1916, 

 p. 380. 



Further details are given on the experimental fumigation of orchards 

 against Psylla mall, [see this Review, Ser. A, iv. p. 168]. In one of the 

 orchards fumigated the previous year, the pest was present in very 



