ENTOMOLOGY. 967 



year when the appHcatioii wa.« made and the hardiness of the trees. In general 

 crude petroleum wa;^ found a safe and effective application on dormant trees. Bio- 

 logical and economic notes are given on codling moth, sinuate pear borer, pear midge, 

 San Jose scale, apple-plant lice, and jilum curculio. 



Report of committee on entomolog'y and report of chief inspector of nurs- 

 eries and orchards, F. ]\I. Websteh [Reprint from Ohio Hurt. Soc. Rpt. lUUl, jiji. .i7, 

 j>/. Ijji'jx. 10). — Notes are given on the damage caused to willows and poplars l)y 

 ('ri/ptorJiipicInu^ lapnthi, and by the strawberrv weevil {Anthonomiu sirjnatns). A 

 warning notice i.** given concerning the l)rood of periodical cicada which will appear 

 in western Ohio during the coming season. Experiments were made t<j determine 

 the extent of infestation of orchard trees from apples and other fruits infested with 

 San Jose scale. It was found that scales rarely left infested apples to settle upon the 

 trees, even when the apples were placed near or in contact with the trunk of unin- 

 fested trees. During the operations of the State inspector and his assistants large 

 (luantities of tish-oil caustic-potash soap were used for spraying orchards and orna- 

 mental trees. The soap was used in the proportion of 2 lbs. to 1 gal. of water, and 

 was found to be effective. In some cases the scale was apparently exterminated Ijy 

 one application. In experiments with crude petroleum it was found that a 10 per 

 cent mixture was ineffective, and that some damage was frequently caused by the 

 u.-^e of a mixture containing more than 35 per cent of oil. When the tish-oil soap 

 was applied under favorable conditions 98 per cent of the scales were killed by 

 one application. Details are given of a number of spraying experiments with this 

 substance. It is concluded that fish-oil soap is the safest effective mixture for use 

 against San Jose scale. It is, however, too expensive for general application. Crude 

 petroleum is considered safe if applied cautiously, and has the advantage of being 

 much cheaper. Notes are given on the location of nurseries and other premises 

 throughout the State which were inspected or found to be infested. Brief notes are 

 also presented on the extent of peach yellows and black knot in Ohio. 



Report of the entomologist, J. M. Southwick {Rhode Island State Bd. Agr. Rpt. 

 1900, pp. 20-49, figs. 17). — Brief notes on the habits, life history, and means of com- 

 bating carpet beetles, fleas, cockroaches, bollworms, white-marked tussock moth, 

 May beetle, goldsmith beetle, San Jose scale, scurfy scale, oyster-shell bark-louse, 

 and oak pruner. 



Report of the entomologist, H. Trvox {Queensland Dept. Agr. Rpt. 1900-1901, 

 pjj. .?4-^S). — The author gives brief n(.)tes on a large number of injurious insects. 

 Ex])eriments were conducted in fumigating fruit trees with hydrocyanic-acid gas. It 

 was found that excessive use of sulphuric acid in producing gas was not attended 

 with any injury to the trees. Brief notes are given on certain insectivorous birds, 

 on field work of the entomologist, and the collection of insects. 



A report of the State entomologist for the year 1900, S. L.\.mp.\ {Ent. Tidskr., 

 22 {1901), No. 1, pp. 1-56, figs. 4). — The most important noxious insect during the 

 year was Lymantria monacha. An outbreak occurred in the southern and eastern 

 portions of Sweden, and after considerable damage had been caused, the insects sud- 

 <lenly disappeared. It is reported that the gypsy moth occurs from time to time in 

 injurious numbers in certain localities. It is considered possible, however, to pre- 

 vent any great injuries from the spread of this species. Notes are given on the dis- 

 trilnition and injuries caused I)y the Hessian fly. An account is given of the various 

 parts of the country visited by the entomologist in the investigation of injurious 

 insects. This report contains notes on Melolontha hippocastani, M. vulgans, Tortrir 

 viridana, Nemains ribesii, gypsy moth, and Hemerobious nervosus. The last-named 

 species is said to be one of the most important predaceous insects in Sweden. Notes 

 are given on experiments in sjjraying with Paris green and kerosene emulsions. 

 These operations are tecoming more widely spread from year to year and are attended 

 with better success. An account is given of certain household insects, including 



