858 EXPERIMENT STATION EECORD. 



are particularly injurious in India. Tlie life liistory of tliese pests is briefly 

 outlined. A, pcregrinum is well-linown as a species which occurs in lai'ge num- 

 bers, while A. succinctum as a rule does not occur in swarms outside of India. 



Insects and diseases of corn and sug'ar cane and related plants, M. T. Cook 

 and W. T. Horne (Estac. Cent. Agron. Cuba, Bui. 7, pp. 30, ?>/s. 10). — Among 

 the corn pests of Cuba mention is made of Laphygma frugiperda, bollworm, 

 white grubs, army worm, changa, grasshoppers, smut, and rust. The most im- 

 portant enemies of sugar cane are Diatrcea saccharalis, leaf hoppers, and ring- 

 spot disease. Brief mention is also made of insect pests and fungus diseases of 

 Kafir corn. 



The corn rootworms, II. Garman {Kentucky Sta. Bill. 130, pp. ^2-//6). — The 

 southern corn rootworm {Diahrotica 12-punctata) is the species which does 

 most harm in Kentucky, as the northern corn rootworm (D. longicornis) is 

 rare in the State and can scarcely be considered of economic importance. The 

 remedies which have been worked out for the northern corn rootworm do not 

 apply to the southern species, for the reason that the latter is not single 

 brooded and apparently does not pass the winter in the egg stage. The author 

 finds that the adult beetles live through the winter. The adoption of a good 

 system of rotation of crops is suggested as a means likely to assist in con- 

 trolling the southern corn rootworm. In the meantime further investigation 

 is necessary as a basis for more effective remedies. A comparative statement 

 is given of the life history of tlie nortliern and southern species. 



The pests of introduced cottons, H. M. Lefroy (Agr. Jovr. India, 2 (1907), 

 No. 3, pp. 2S3-2S5). — Foreign varieties of cotton introduced into India are par- 

 ticularly liable to insect attack, the most important pests of such varieties being 

 leaf hopper, aphis, leaf roller, stem borer, and bollworms. In preventing 

 injuries from these insects some benefit may be expected from pruning tree 

 cottons during the hot season of eacli year, rotating annual cottons with other 

 crops, and desia-oying all stems and trash about the field at the end of the 

 growing season. 



An insect enemy of kitchen gardens, J. Vercier {Jardin, 21 (1907), No. Ji97, 

 pp. 330, 331, fig. 1). — Oryctvs nasicornis is described and a brief account is 

 given of its attacks upon garden legumes and other crops. 



Greenhouse pests and their control, H. T. Fernald (Masfi. Crop Rpt., 20 

 (1907), No. a, pp. 29-38, fig. 1). — Short notes are given on plant lice, white 

 flies, tlirips, cutworms, snails, red spiders, scale insects, and mealy bugs in 

 •greenhouses. These jjests may be controlled by syringing with water, by fumi- 

 gating with tobacco, carbon bisulpliid, or hydrocyanic-acid gas, or by dipping 

 in tobacco water, soap mixtures, or otlier insecticides. 



The early stages of the oriental moth, H. T. Fernald and J. N. Summers 

 {Ent. NewH, 18 (1907), No. 8, pp. 321-327, pis. 2, fig. i).— Since the early 

 stages of Cnidocampa flavcsccns had not been described the authors obtained 

 a large series of eggs and from the larvse liatched tlierefrom secured material 

 for the description of the insect in all of its immature stages. 



The excessive abundance of apple moths, G. KoRFF(/'rffl/t'?. Bh Pflanzenhau u. 

 Schtitz, n. ser., 5 (1907), No. 10, pp. 112-116). — During the year Simcrtliis 

 pariana occurred in great numbers injuring fruit trees, birches, willows, and 

 other sliade trees. It is difficult to control tliis insect by direct application of 

 sprays, but considerable benefit may be derived from collecting all fallen 

 leaves in which the larvje may be concealed. 



Papers on deciduous fruit insects and insecticides. The lesser apple worm, 

 A. L. Quaintance (U. S. Dept. Agr., Bur. Ent. Bui. 68, pt. 5, pp. ',9-60, pi. 1, 

 fig. 1). — Enarmonia priinivora has caused considei-able injury to apples during 



