212 



Degrully (L.). Cochenilles et Fumagine de la Vigne. — Progres 

 Agric. Vitic, Montvellier, Ixxii, no. 49, 7th December 1919, 

 pp. 530-532. [Received 6tli April 1920.] 



Many French vineyards, especially those of the south-west, have been 

 greatly injured by scale-infestation. The scales chiefly concerned are 

 Targionia (Aspidiotus) vitis (grey scale), which occurs very rarely 

 except in Provence ; Eulecaniimi jjersicae {Lecanium cymbiforme) 

 (oblong scale), abundant throughout the south and especially in the 

 Gironde region ; Pulvinaria vitis (red scale) and Pseudococcns {Dacty- 

 lopius) vitis (white scale) found throughout the Mediterranean basin ; 

 Eulecanium {Lecanium) corni, found only in the north ; Aulacaspis 

 (Diaspis) pentagona ; and the falciferovis scale [Rhizoeciis falcifer, 

 Kiinck.], which lives on the roots. All these species may be controlled 

 by practically the same treatment, which is carried out in the winter. 

 With the exception of Pseudococcns vitis, which hibernates under the 

 shelter of the bark, they may all be found, often in large colonies, on 

 the stocks and branches, and sometimes on the largest roots, in which 

 ca^e the base of the vine should be exposed before the treatment ift 

 begun. The most heavily infested shoots should then be cut out and 

 burnt. If there are scales under the bark, complete decortication 

 may be necessary, the pieces of bark bemg collected and burnt, or, 

 if decortication is not done, the scales on the trunk and branches should 

 be crushed with a hard brush. An insecticide treatment is then given 

 such as the one recommended for destroying the winter eggs of 

 Phylloxera, which consists of 5 lb. heavy coal-oil, thoroughly mixed 

 with 20 lb. unslaked lime and added to 10 gals, water. Another 

 formula recommended is an emulsion of 7 oz. Islack soap, 7 oz. seed 

 oil, 3| oz. paraffin in 56 oz. water. Lime-sulphur solution can also 

 be used. 



LiCHTENSTEiN (J. L.). Le Parasitisme d' ApJiiochaeta (PJiora) fasciata, 

 Fallen. — C. R. Hehdom. Acad. Sci., Paris, clxx, no. 9, 1st March 

 1920, pp. 531-534, 3 figs. 



The female of Aphiochaeta fasciata oviposits on the nymphs of the 

 Coccinelhds, Thea vigintiduopunctata, L., and Vibidia duodecimguttata, 

 Poda, after the final ecdysis, the eggs being deposited on the ventral 

 surface. In 1|— 2 days the larva hatches and makes its way at once 

 into the host, and 2 days later emerges through a hole on the ventral 

 surface between the head and thorax. Pupation occurs twelve hours 

 later, the fly appearing after two to three weeks. 



BuGNioN (E.). Le Termite lucifuge dans les Basses-Pyrenees. — 

 Rev. Hist. Nat. Ajjp., Paris, lere partie. no. 2, February 1920, 

 pp. 49-51. 



Numerous nests of the termite, Leucotermes lucifugus, Rossi, were 

 found in the lower Pyrenees at an altitude of from about 650 ft., to 

 980 ft. Although this species usually inhabits pine trees {Pinus 

 maritima) five of the nests under consideration were found in decaying 

 stumps of chestnut trees that had previously been attacked by a 

 fungus disease. 



