386 



Laboratory and field experiments have proved conclusively that 

 Nezara viridula (green soldier bug) is a carrier of anthracnose spores 

 from one cotton boll to another. LapJiygjnafrugiperda caused extensive 

 damage to lucerne crops, to prevent which arsenate of lead is recom- 

 mended, as its use in large quantities is less injurious than that of Paris 

 green. The best formulae for lead arsenate are : — As a spray, 3 lb. of the 

 paste or 1| lb. of the powder to 50 U.S. gals, of water ; as a dust, 

 1 lb. dry lead arsenate to 5 lb. slaked lime or cheap flour. Paris green, 

 if used as a spray, should be in the proportion of 1 lb. Paris green, to 

 3 lb. lime and 100 U.S. gals, of water ; as a dust, at the rate of 1 lb. 

 Paris green to 15 lb. slaked lime or cheap flour. Tetranyclius telarius 

 {bimaculatus) (cotton red spider) was abundant owing to a very dry 

 season, but spraying with 1 or 2 per cent, commercial lime-sulphur 

 gave good results. Where this cannot be used owing to its dis- 

 colouring properties, as in greenhouses, spraying with nicoticide or 

 drenching with water under pressure has proved efficacious. Aphis 

 gossypii (melon or cotton aphis) was the most injurious Aphid. 



Less common pests that were troublesome during the year were 

 the beetle, Macrohasis unicolor, on potatoes, which was efiectively con- 

 trolled by spraying with lead arsenate ; Thyridopteryx ephemeraeformis 

 (bagworm) on ornamental trees, particularly evergreens, which was 

 easily controlled by dusting or spraying with lead arsenate, and by hand 

 picking and burning after it had entered the pupal stage ; the leaf- 

 miners, Phylloryder {Camerana) hamadryadella and P. (C) cincin- 

 natiella, on oak, which cannot be controlled when they are attacking 

 the foliage, but since they hibernate in their mines in the leaves, these 

 should be raked up and burned in late autumn or early spring ; 

 Chrysomphalus (Aspidiotus) tenebricosus (maple scale) was most 

 effectively controlled by commercial lime-sulphur, 1 part to 10 parts 

 of water; but this in the case of Eulecanium {Lecanium) nigrofasciatiim 

 was less successful than kerosene emulsion ; and Iridomyrmex humilis 

 (Argentine ant), which can be controlled by a slow-acting poison 

 composed of 15 lb. granulated sugar, 7| lb. water, and | oz. tartaric 

 acid, boiled slowly for 30 minutes and allowed to cool, when f oz. 

 sodium arsenate dissolved in \ U.S. pint of hot water, and 8 per cent, 

 of pure honey must be thoroughly stirred in. 



Experiments are still being conducted with a view to finding a 

 dependable and cheap dust mixture, the lightness of the outfit required 

 and the rapidity with which the work can be done rendering it superior 

 to the usual spray solutions. 



WoRSHAM (E. L.) & Spooner (C. S.). Annual Report of the State 

 Entomologist for 1915. — Georgia State Bd. Entom., Atlanta, Bull, 

 no. 45, 1916, p. 20. [Receired 29th June 1917.] 



The pecan shuckworm [Cydia caryana] was efficiently controlled by 

 autumn ploughing, and a large number of parasites were bred from 

 the larvae, and also from those of the pecan case-bearer [Coleophora 

 caryaefoliella ?], which was efiectively controlled by late simimer 

 spraying with arsenate of lead. The pecan-nut case-bearer, which is 

 a serious pest, was found for the first time in Georgia, and experimental 

 control measures were undertaken. 



