450 EXPERIMENT STA.TION RECORD. [Vol. 43 



There was a severe outbreak of the green clover worm (Plathyprna scabra 

 Fabr. ) on soy beans in July and August involving thousands of acres, the 

 injury having been greatest in the eastei'n half of the State. 



Refei-ence is also made to potato spraying, work with the larger corn stalk- 

 borer, with the black corn weevil, the insect survey, army worms, and invasion 

 of the State by the cotton boll weevil. 



[Work with insects and their control in Antigua] (Imp. Dept. Agr. West 

 Indies, Rpt. Agr. Dcpt. Antigua, 1918-19, pp. 15-18). — This report relates to 

 insect enemies of sugar cane, cotton, limes, sweet potatoes, and onions. 



Enemies of maize in Uruguay (Defensa Agr. [Uruguay] Pub. 10, 1918, 

 pp. IJf, pis. Jf). — Insect pests here considered include the granary weevil, 

 Diloboderus abderus, the fall army worm, etc. 



Pink bollvvorni and cotton stem weevil and tlicir attacks ui)on Cam- 

 bodia cotton (Trap. Agr. [Ceylon], 58 (1919), No. 3, pp. 197-199).— It is .said 

 that the increased price of cotton during the war has induced growers of 

 Cambodia cotton to leave their crop in the ground for two or even three years 

 instead of practicing the usual rotation of crops. As a result the pink boll- 

 worm has increased enormously, in some fields over 80 per cent of the cotton 

 bolls being found infested. The cotton stem weevil {Pempheres affinis) is also 

 a dangerous menace to the cotton industry of South India, 70 and even 100 

 per cent of the cotton in some fields oeing attacked. In order to combat these 

 pests the Pest Act was passed, which requires clearing the land of cotton for 

 a definite period of the year and pulling up and destroying their food plants 

 over wide areas. 



[Economic forest insects in Dutch East Indies (Dept. Landb., Nijv. en 

 Handel [Dutch East Indies], Meded. Proefsta. Bosclnc, No. 1, {1911)), pp. 1-30, 

 55-81, pis. 16). — Papers here presented are on The Large Teak Borer {Duomitus 

 cerainicus Wlk.) (pp. 2-17), and The Teak Termite (Calotermes tectoncB 

 Damm.) (pp. 21-30), both by H. Beekman ; and The Red Coffee Borer (Zeuzera 

 coffem Nietner) in Forestry (pp. 55-65), The Red Stem Borer {Z. postexcisa 

 Hamps.) (pp. 69-71), and Injury by the China Girdler (Phassus (?) damoor 

 Moore) in Silviculture (pp. 75-81), all by L. G. E. Kalshoven. 



A coordination of our knowledge of insect transmission in plant and 

 animal diseases, F. V. Rand and W. D. Pierce {Phytopathology, 10 (1920), 

 No. Jf, pp. 189-231). — This is a general discussion of the subject in connection 

 with a bibliography of 173 titles. 



Termites and termitophiles, E. Warken (So. African Jour. Set., 16 (1919), 

 No. 2, pp. 93-112, pis. 3). — This is a comparative study of the modifications of 

 structure and habit occurring in the various foreign organisms living as guests 

 or parasites in the nests of termites. The subject is dealt with under the 

 headings of distribution of termites in space and time, the termitophilous habit, 

 comparison of the termitophile faunas of the varous regions, and comparison 

 of the termite faunas of the various regions. 



Concerning tlie distribution of North American Cicadellidie (Hemip.), 

 G. AV. Barber (Canad. Ent., 52 (1920), No. 5, pp. 116-118). 



licaf hopper investigations, on HaAvaii, C. E. Peme%:rton (Abs. in Rev. 

 Appl. Ent., 8 (1920), Ser. A., No. 1, pp. 19-21).— This is a preliminary report 

 of investigations made of the sugar cane leaf hopper (Perkinsiella sacchari- 

 cida) in Hawaii during June and July. 



The jumping plant lice of the Palseotropics and the South Pacific 

 Islands (Family Psyllida;, or Chermidae, Homoptera), D. L. Crawford 

 (Philippine Jour. Sci., 15 (1919), No. 2, pp. 139-205, pis. 3, figs. 3).— This paper 

 includes keys to the subfamily, genera, and species. Three genera are erected 



