358 EXPEKIMENT STATION EECORD. 



(E. S. R., 26, p. 246), have been used by tlie author with success In destroying 

 crickets and locusts (8. paranensis) in the Province of Santa Fe, Argentina. 

 The epizootic spreads with remarkable rapidity, the disease having been 

 reported from a radius of 50 km. (about 31 miles) about the district first 

 infected within a few days after the first infestation. 



It is stated that the Argentine government has decided to employ this means 

 of combating locusts in all the infested territory. 



The destruction of locusts by Herelle's method, R. Gu^rin {Jour. Agr. 

 Trop., 12 (1912), No. 129, pp. 10-12). — ^This paper relates to the Investigations 

 noted above. 



How to fight the pear thrips, G. E. Merrill {Mo. Bui. Com. Ilort. Cal., 

 1 {1912), No. 2, pp. 51-59, figs. 3). — This is a general account of the pear 

 thrips, its life history, injury, and control measures. 



Excellent results are said to have been obtained from the application of a 

 spray of whitewash, consisting of from 75 to 100 lbs. of lime to each 100 gal. 

 of water. It is stated that the cost of the spray should not exceed more than 

 1 ct. per gallon of prepared material. Care should be taken to secure first-class 

 lime and to see that it is well slaked. The spray should be applied just as the 

 buds begin to separate and the entire surface of the tree should be covered, one 

 application being sufficient. 



Eight times as many pears were obtained from trees sprayed in this way 

 as from unsprayed trees. 



Scale insects and black blight, G. Auchinleck {Imp. Dept. Agr. West Indies, 

 Rpts. Bot. Sta. [etc.] Grenada, 1910-11, p. 15). — The shield scale fungus 

 {Cephalosporiuni lecanii) was found early in 1910 destroying Coccus mangiferw 

 in the botanic gardens in Grenada. It has since been distributed throughout 

 the island on mango leaves. The spread of Cephalosporium in 1910 and the 

 earlier part of 1911 is reported to have been extraordinarily rapid and it is 

 now present in nearly all the districts of the island, it being difiicult to find 

 a mango tree in Grenada on which the scales are not parasitized by this fungus, 

 or which is not clean of black blight. 



The red headed fungus {Sphcerostilie coccophila) has been used in connec 

 tion with scales on citrus trees but so far without success. 



European elm scale in California, C. W. Woodworth (Mo. Bui. Com. Hort 

 Cal., 1 (1912), No. S, p- 101). — This species is said to occur in great abundance 

 in Stockton, Colusa, Palo Alto, Santa Clara, San Jose, and Ukiah. 



African scale insects, L. Lindinger (JaJirb. Hamburg Wiss. Anst., 26 (1908) 

 Beiheft 3, pp. 13-46, figs. 24; 21 (1909), Beiheft 3, pp. 33-48, pis. 4; 28 (1910) 

 Beiheft 3, pp. 1-38, pis. 3, figs. 16; Stat. Pflanzcnschuts Hamburg [Ber.], 11 

 (1908-9), pp. 13-46, figs. 24; 12 (1909-10), pp. 33-48, pis. 4; PP. 1-38, pis. S 

 figs. 16). — Four papers are presented, namely, (1) Diaspinse from Kamerun 

 including descriptions of a new genus (Cryptodiaspis) and 20 new species; (2) 

 a South African diaspid resembling the San Jose scale, namely, Aspidiotus 

 pectinatus n. sp. ; (3) Coccidse from East Africa, with descriptions of a genus 

 (Cryptaspidus), 10 species, and 1 variety, all new to science; and (4) Coccidse 

 of the Canary Islands, a contribution to the fauna of the islands. Thirty-nine 

 species of scales are recorded from the Canaries of which 12 are described as 

 new to science. 



Control of the codling moth in Arizona with special reference to the Upper 

 Gila Valley, A, W. Morrill (Ariz. Hort. Com. Circ. 15, 1910, pp. S).— This 

 circular briefly describes methods of dealing with the pest. 



Revision of the oriental Tipulidae with descriptions of new species, E. 

 Brunetti (Rcc. Indian Mas., 6 (1911), No. 5, pp. 231-314). — This work in- 

 cludes descriptions of 8 genera and more than 50 species new to science. 



