472 



d'Oliveira (D.)- Un Ennemi de la Vigne en Am6rique, Polychrosi^ 



viteana, Clem. [An Enemy of the Vine in America, Polychrosis 



viteana, Clem.] — Rev. Viticulture, Paris, xviii, no. 1249, 6th June 



1918, pp. 353-357, 8 figs. 



This paper reviews a bulletin on the occurrence and control of 



Polijchrosis viteana in America, that has already been noticed [see 



this Review, Ser. A, v, p. 508]. Attention is drawn to this pest in 



view of the possibility of its introduction into France.* 



Use of Prickly Pear Sap in Arsenical Sprays. — Agric. News, Barbados, 

 xvii, no. 422, 29th June 1918, p. 195. 



Attention is drawn to the value of the sap of the prickly pear 

 [Opuntia] in preparing arsenical sprays, which should have the greatest 

 possible adhesive power, so that they may be effective for as long a 

 time as possible and so that the least quantities may be used to 

 obtain the desired results [see this Review, A, iii. p. 295]. The stems 

 should be cut into thin sUces, in such a way as to ensure the rupture 

 of all the cells containing the adhesive sap, and then put to soak in 

 water. 



About 20 lb. of cactus stems are used to about 15 gals, water and 

 the required quantity of the arsenical insecticide added to the solution. 

 This infusion of cactus in water will keep for a long time before its 

 mixture with the poison-spray, if a little copper sulphate be added to it. 



The effect is not the same with all insecticides. Zinc arsenate 

 gives the best result, then Paris green, but with lead arsenate or 

 iron salts the results are almost negligible. 



LEGISLATION. 



Proclamation Tegarding Brassolis sophorae. — Bull. Dept. Agric. Trinidad 

 & Tobago, Port- of -Spain, xvii, no. 1, 1918, pp. 52-53, 



A proclamation dated 28th March 1918 declares Brassolis sophorae 

 (coconut butterfly) to be a pest within the meaning of the Plant 

 Protection Ordinance of 1911. 



Amendment to the Regulations under the Destructive Insect and Pest 

 Act. — Order in Council, Ottawa, 12th June 1918. 



By an Order in Council of 6th June 1918 the importation into 

 Canada of all species and varieties of currants and gooseberries 

 {Ribes and Grossularia) was prohibited under the Destructive Insect 

 and Pest Act [see this Review, Ser. A, v, p. 479]. This order has now- 

 been amended to admit species and varieties of currants and goose- 

 berries fi'om that portion of the United States of America west of the 

 line of and excluding the States of Minnesota, Iowa, Missouri, Arkansas, 

 and Louisiana, if accompanied by a certificate signed by the duly 

 authorised State official that such currants and gooseberries have 

 been grown within the State from which they are shipped and are 

 free from insect pests and plant diseases. 



*[It is by no means certain that P. viteana is a distinct species from 

 the European, P. botrana. — Ed.] 



