952 EXPKKIMKNT STATION HKCOHIJ. 



applit'd to vines is wasted. At the same time, wilii Kood suii)hur distril)Utiii}; 

 niac'liines, the superiority of the finer >;rades is distinctly manifest. 



In considerinj; sulphur to he used for seale washes and sheep dips, it was 

 found that the cheaper Jtud, witlun certain limits, the coarser and less-retined 

 article answers all the puii)oses of the finer and more costly form. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



Index-catalogue of medical and veterinary zoology, ('. W. Stilks and 

 A. Hassall (f'. /S. Dcpt. Ayr., Bur. Aniiii. Indus, liul. 3'.), i>ts. .li, />/;. III + IG25- 

 niS; 23, pp. IfI+17J9-rsor)).—A continuation of the index catalofiue. i»art 22 

 containiufT the names of atithors from Paaren to I'feilsticker, and i)art 2.'}. names 

 from rfender to Qvortrnp. 



The otter in Massachusetts, C. E. (Jorhon (Scicncr, n. sen, 28 {]908). No. 

 726, pp. 772-77'). map 1). — An account of the occurrence In Massachusetts of 

 the North American otter {Lutra canadensis). 



Investigations of the department of entomology, P. J. Parrott {^eio York 

 8t(itc t^td. Rpt. 1907, pt. 3, pp. 238-266, pis. //).— This is a summary of the ento- 

 mological investigations conducted at the New York State Station since their 

 commencement in isn4. 



The garden insects which have received particular attention are the strii)ed 

 cucumber beetle, squash bug, squash borei", boreal lady beetle (EpiUicliud 

 horealis), melon louse (Aphis gossypii), imported cabbage worm, cabbage 

 looper, diamond-back moth (PluteJIa maculipcnnis) , cabbage aphis, Thrips 

 tabaci, and the harlequin cabbage bug. The fruit insects studied include the 

 codling moth, San Jose scale. New York plum lecanium (Eulr'nanium crrasi- 

 fex), pistol case bearer, plant lice, spring canker worm, grape flea beetle, tent 

 caterpillar, forest tent caterpillar, raspberry sawfly, apple and pear mites 

 {Eriophyes spp.), and others. 



The insect enemies of field crops, etc., investigated, include the army worm, 

 Cottonwood leaf beetle (Una scripta), onion cutworm (Eu.roa messoria), and 

 poplar and willow borer (Cryptorhynchus lapathi). 



Report of the department of botany and entomology, J. F. Nicholson 

 (Oklahoma Sta. Rpt. 1908, pp. 19-Jt2). — The principal work of the department 

 during the fiscal year in07-.S under rejiort was along entomological lines. 



The green bug which api)eared in January, 1007, destroyed 85 per cent of 

 the oat crop and more than 75 per cent of the wheat crop. In experiments 

 made to determine the effectiveness of natural enemies as many as 192 green 

 bugs were consumed by a lady beetle in one day, while the parasite Tjysrphlrhus 

 tritici was observed to deposit eggs in 30 green bugs in 11 minutes. In some 

 localities in 1908 fully 25 per cent of the fall wheat was destroyed by the 

 Hessian fly. 



The boll weevil appeared in sufficient numl)ers to become injurious and the 

 webworm was esi)ecially destructive to alfalfa. Winter i)lowing of cotton 

 ground, and clean cultivation in corn is reported to have given excellent re- 

 sults against the liollworm. The best results, however, were obtained by plant- 

 ing June corn in the cotton as a trap crop. 



Spraying work against the codling n)oth showed that fully 95 per cent of the 

 fruit could be saved by a thorough system of spraying. The San Jose scale is 

 reported to be well scattered over the State. The black locust borer is said to 

 threaten the destruction of the locust trees of the State. 



A report of the nursery inspection work is also presented, 93 nurseries having 

 been inspected during the year. 



