159 



extension there. The insect pests mentioned are Dacus oieae, Gmel., 

 Hylesinus oleiperda, ¥., and Saissetia (Lecanium) oleae, Bern. In the 

 control of D. oleae, the De Cillis formula for poison bait [see this 

 Review, Ser. A, i, p. 271] gave the best results ; predatory Coccinellids 

 such as Chilocorus and Exochomus are not sufficiently numerous, so 

 that poisons are the only means of control. A bibliography of 15 works 

 is appended to this paper. 



Faraci (G.). La coltivazione del limone in S. Agata diMilitello (Prov. 



di Messina). [The cultivation of the lemon at S. Agata di MiU- 



tello (Province of Messina).] — Annali R. Staz. Sperirmnt. Agrum. 



Fruitic, Acireale, iii, 1915, pp. 135-192. [Received 2nd March 



1916.] 

 This paper deals with lemon cultivation in the district of S. Agata 

 di Militello, in Sicily. The insect pests noticed are Psevdococcus 

 citri, Risso, Asjpidiotus hederae, Vail., Lepidosaphes becJcii, Newm. 

 {Mylilas'pis citricola, Pack.), Heliothrips haemorrhoidalis, Bch., and 

 Prays citri, Mil. Teiranychi(,s telarius, L., occurs in connection with 

 red rust. The usual remedies are given. 



Real orden del Ministerio de Fomento del 17 de enero 1916. [Royal 



order issued by the Ministry of Agriculture on 17th January 



1916.] — Boletin de AgricuUura tecnica y economica, Madrid, viii, 



no. 85, January 1916, p. 2. [Received 3rd March 1916.] 



This order instructs the Civil Governors of provinces where olive 



cultivation is carried on, to compel the growers to burn olive prunings 



or to remove them from the ground for storage in rooms which must 



be kept closed. 



£1 sistema Berlese contra la mosca del olivo. — Su ufilidad para la 



extinci6n de otras plagas del campo. [The Berlese method against 



the olive fly and its utility in destroying other agricultural pests.] — 



Boletin de AgricuUura tecnica y economica, Madrid, viii, no. 85, 



January 1916, pp. 83-85. 



The provincial council of agriculture of Tarragona experimented 



on 3,000 olive trees in an area of 250 acres with Prof. Berlese's method 



against the olive fly {Dacus oleae) [see this Review, Ser. A, iii, p. 36] 



and good results were obtained. Instead of being suspended, the pots 



were placed in forks between two branches, firmly lashed to one of them, 



thus preventing spilling of the liquid. An increase of the amount of 



arsenic to 3 or 4 per cent, was found beneficial. This first trial reduced 



the number of infested olives by 25 to 30 per cent. The pots were 



baited in the second half of May 1914 and an estimated total of 500,000 



vine moths, Clysia amhiguella and Pohjchrosis botrana, were found in 



them, as well as many Cetonia beetles. The number of infested grapes in 



vineyards near the experimental olive area was reduced by 30 to 40 



percent., and the destruction of the beetles promised well for the fruit 



crop. No olive flies were found in the pots, as they fly away after 



feeding on the bait, and for the same reason the absence of bees and 



wasps was no proof that none were killed. It appeared certain, 



however, that birds do not drink the liquid, as in many cases there 



were nests in the trees where pots were placed, in which young were 



reared. 



