471 



Sur I'Attelabe curculionide. [Concerning Attelabus curcuUonoides, L.] 

 — Bull. Soc. Etude Vulg. Zool. Agric, Bordeaux, xvi, no. 7, Julv 

 1917, p. 77. 



Attelabus nitens {curculiotwides) is recorded from France on 

 chestnut trees already infested with a fungous disease. The adults 

 are found from May to July, pupation taking place in the ground. 

 The eggs are frequently parasitised by the Chalcid, Poropoea stollwercki, 

 Forst. 



Capus (J.). Sur un D6p6rissement des Cultures de Pois en Gironde du 

 a la double Action de VHeierodera schachtii et du Fusarium vasin- 

 fectum. [Injury to Peas in Gironde due to the twofold Action 

 of Heterodera schachtii and Fusarium vasinfectum.] — Bull. Soc. 

 Etude Vulg. Zool. Agric, Bordeaux, xvi, nos. 7-8, July- August 

 1917, pp. 70-73, 87-91. 



Peas grown in Gironde have been injured since 1915 by a Nematode, 

 Heterodera schachtii, and a fungus, Fusarimn vasinfectum, continues 

 the injury primarily due to infestation by the Nematode. On pulling 

 up the withered plant the base of the stem, the root and rootlets are 

 seen to be brown, and their bark does not adhere firmly. The spread 

 of H. schachtii is due to the damp winters preceding the years 1915 

 and 1916, for this species can only live in a moist soil. The restriction 

 of extensive Nematode infestation to peas may be due to the fact 

 that they are sown in autumn in Gironde and thus present conditions 

 favourable for the continuation of H. schachtii from one year to 

 another. 



Savastano (L). Irrorazione intensifieata della poltlglia solfo-calcica 

 contro il crisonfalo. [IntensiHed Spraying with Lime-Sulphur 

 against Chrysomphalus dictyospermi, Morg.] — R. Stuz. Speriment. 

 Aqrum. Fruttic, Acireale, Bull. no. 30, May 1917, 4 pp. [Received 

 15th August 1917.] 



The simplification of spraying is needed owing to the increased cost 

 of materials and labour. Lime-sulphur may be used in stronger 

 solutions, when a quicker action is required, the strength of the 

 solution being only limited by the resistance of the trees, which is 

 greater in winter [see this Review, Ser. A, v, p. 45]. As, however, the 

 fruit is easily scorched, strong solutions should not be applied to oranges 

 unless it is imperative to save the trees, but only to lemons, as this 

 fruit, when scorched, is available for making lemon-juice. Spraying 

 during September and early October should be done with a 10% 

 mixture of a density of r25, and this strength should not be exceeded. 

 The application must be uniform, but not abundant, or damage may 

 result. If the fruit is of little value and infestation is considerable, 

 a strength of 12% may be used, but never more. Strong solutions 

 cause much defoliation, but as the leaves involved are the badly 

 infested ones that would fall in any case, there is no real loss. These 

 particulars are for using the Savastano formula for lime-sulphur [see 

 this Review, Ser. A, ii, p. 412]. 



