334 



Where a large area is available, the nursery beds can be shifted as 

 soon as the weevils appear in any quantity, and poultry should be 

 turned into the orchards, many pupae and larvae being devoiu-ed by 

 them. Some nurserymen claim to have obtained good results with 

 lead arsenate sprays ; if used judiciously, they should prove a good 

 remedy. The numbers of P. phytolymus have been diminishing in 

 recent years, probably owing to predaceous enemies, which include 

 a number of small Carabid beetles and Therevid fly larvae. Now that 

 more is known of the hfe-history and habits of this weevil further 

 studies will be made of remedial treatments. 



Pas-serini (N.). Sul Potere insetticida del Pijrethrum cinerariaefolmm, 

 Trev., coltivato a Firenze in confronto con quello di alcune altre 

 Asteracee. [The insecticidal Power of P. cinerariaefolium, Ti-ev., 

 cultivated in Florence compared with that of some other Aster- 

 aceae]. — Nuow Giornale Botanico Italiano. Florence, xxvi, no. 1, 

 January 1919, pp. 30-45. [Received 2nd June 1920.] 



After carrying out many experiments with Pi/rethrmn cinerariae' 

 folium, the results of which are given in detail, the conclusion is reached 

 that no other plant of this family has properties so powerful or so 

 swift in their action against Musca domestica, L., Ctenocephalus canis, 

 Curt., or ants such as Crematogaster scutellaris, 01. All parts of the 

 plant, when reduced to powder, are effective, the leaves, stalks and 

 roots in a somewhat lesser degree than the flower-heads. 



PiuTTi (A.) & Berxardini (R.). Sopra I'Azione della Cloropicrina 

 (Tricloronitrometano) sui Parassiti del Grano. [The Action of 

 Chloropicrin on the Pests of Grain.] — Pend. Acad. Sci. Fis. Mai., 

 Naples, xxiii, ser. 3% nos. 4-6, April-June 1917, pp. 51-53. 

 [Received 22nd June 1920.] 



Chloropicrin is found to be more effective against such grain pests as 

 theheetles, Cala7idra granaria, Tenebroides mauritanicus, LaemopJdoeus 

 Jerrugineus, and the larvae of the moths, Sitotroga cerealella, Tinea 

 granella and Plodia americana than carbon bisulphide, carbon tetra- 

 chloride, sulphurous anhydride or hydrocyanic acid, etc. 



PrcTTi (A.) & Maxgo (A.). Sull' Impiego della Cloropicrina (Tri- 

 cloronitrometano) nella Disinfezione dei Cereali. [Chloropicrin as 

 a Disinfectant for Cereals.] — Bend. Acad. Sci. Fis. Mat., Naples, 

 xxvi, ser, 3'', nos. 1-3, January-March 1920, pp. 77-88. 



Experiments with chloropicrin against insects infesting cereals lead 

 to the conclusion that this substance is an efficacious insecticide which 

 has no iU effects on the grain beyond reducing its germinating power 

 to a certain extent. 



Quarantine on Account of European Corn Borer. — N.Y. State Dept. 

 Farms and MUs., Div. Agric, Albany, Circ. 193, April 1920, 

 14 pp. 



A State and Federal quarantine has been placed on certain cities 

 in New York State to prevent the spread of the European corn borer, 

 Pyraustu nuhilaUs, within and out of the State. Particular areas 



