17G EXPERIMENT STATION RECORD. 



upon fruit trees. Notes arc given <>n the appearance, habits, life history, and means 

 of combating apple aphis, codling moth, tent caterpillar, plum curculio, fruit-tree 

 bark-beetle, flat-headed apple-tree borer, and peach-tree borer. 



Report of the State entomologist, R. A. Cooley (Montana Sta. Bui. 51, pp. 

 199-274, ph. 8, figs. 10). — Detailed notes are presented on the appearance, habits, 

 life history, distribution, natural enemies, and means of combating the must impor- 

 tant species of injurious insects in Montana, including bud moth, oyster-shell bark- 

 louse, apple aphis, flat-headed apple-tree borer, pear-leaf blister-mite, and grass- 

 hoppers. The author discusses also the economic value of toads and presents a brief 

 list of Montana fruit pests with notes on insecticides and fungicides. 



Bulletin of the commission of agricultural parasitology ( Bol. Com. Par. Agr., 

 2 (1904), No. 4, pp. 143-206, pis. 9, fig. 1). — Biological and economic notes are pre- 

 sented on various injurious insects of grapes and other crops, protection of insectivo- 

 rous birds, cotton-boll weevil, pyrethrum insect powder, etc. 



The status of the Mexican cotton-boll weevil in the United States in 1903, 

 YV. D. Hunter ( U. S. Dipt. Agr. Yearbook 1903, pp. 205-214, pis. 5, fig. 1).—A brief 

 account of the distribution, depredation, life history, and means of controlling this 

 pest. 



The author believes that no direct insecticide methods such as the use of poisons 

 will be effective in destroying the pest. Neither is any hope entertained of meat 

 help from the use of fungus diseases or resistant varieties of cotton. Apparently the 

 greatest reliance must be placed in proper cultural methods such as the early destruc- 

 tion of plants in the fall and hastening the maturity of the crop in order to avoid 

 the attacks of the weevils. 



The Mexican cotton-boll weevil, H. A. Morgan ( Proc. Louisiana Stair Agr. Soc. 

 and Stockbreeders' Assoc, 1904, pp. 64-71). — The conditions of the weevil problem in 

 Texas and Louisiana are briefly outlined. The habits, life history, distribution, and 

 means of combating the pest are also discussed. 



An enemy of the cotton-boll weevil, O. F. Cook ( P. S. Dept. Agr. Rpl. 78, 

 pp. 7). — While studying the varieties of cotton grown by Indians in Guatemala, the 

 author discovered that a large reddish-brown ant which normally visits the cotton 

 plants for the purpose of feeding upon the nectar secreted by the leaves and other 

 parts of the plant also attacks the cotton-boll weevil and destroys it by stinging and 

 injecting a poisonous substance. 



The author believes that the successful cultivation of cotton by the Indians of Aha 

 Vera Paz is made possible by the assistance of ants in destroying the cotton-boll 

 weevil. Brief notes are given on the habits of this ant. 



Grasshoppers in alfalfa fields, S. B. Doten (Nevada Sta. Bid. 57, pp. 6, pis. 2). — 

 Grasshoppers are considered the most injurious insects in the State of Nevada. They 

 do greatest damage to the second crop of alfalfa. Notes are given on the habits and 

 life history of the pests. Deep fall plowing is recommended for the destruction of 

 the eggs. Fall plowing is more effective than spring plowing. Harrowing in the 

 spring destroys a considerable proportion of the eggs. The use of poisoned baits 

 and various forms of hopperdozers is also recommended. 



Combating wireworms in cereals, G. Caruso (Atti R. Accad. Econ. Agr. Georg. 

 Firenze, 4- ser., '26 (1903), No. 4, pp. 373-380).— -Tests were made of fertilizers, white 

 mustard, and lupines in determining their value for preventing the attacks of wire- 

 worms in cereal fields. The wireworms were found to be most numerous in the first 

 30 cm. of soil and most injurious during fall and winter. Oil of tar sprayed on the 

 soil at the rate of 25 kg. per hectare had no effect on the wireworms. Lupines, how- 

 ever, checked them to a considerable extent. 



Black grub or cutworm, E. E. Green (Circs, and Agr. Jour. Hog. Bot. Gard., 

 < 'ey Ion, 2 (1904), No. 11, pp. 2). — Brief mention is made of the usual mechanical and 

 chemical methods of combating cutworms. 



