1054 EXPERIMENT STATION EECOED. 



Report of the entomolog'ist, J. B. Smith (Neiv Jersey Htas. Rpt. 1907, pp. 

 J87-J78, pis. 3, p(j. 1). — A general review is given of the entomological features 

 of the year. 



Codling moth, black peach aphis, and fall webworm were unusually injuriinis. 

 San J(»se scale caused less damage than ordinarily. It is stated that an or- 

 ehardist in New Brunswick has found that trees may be rendered UK)re resist- 

 ant to San Jose scale by spraying with lime. This matter requires further 

 study. An outline is given of the present condition of the experimental orchard. 

 In a test of setting nursery trees with and without root cutting, little difference 

 was observed as to the subsequent infestation with San Jose scale. 



The biological and economic relations of a number of shade-tree insects are 

 discussed including elm-leaf beetle, bagworm, gipsy moth, cotton maple scale, 

 periodical cicada, etc. Similar notes are given on army worm, wireworms, 

 sweet-potato flea-beetle, squash bugs, etc. A study was made of methods for 

 controlling root maggots. Dipping plants in arsenate of lead or dry hellebore 

 was found to be of little value. Tar-paper disks were very effective. The in- 

 sects were also controlled by brushing away the surface soil from about the 

 stems of infested plants and replacing it with fresh soil. The same results were 

 obtained by taking up infested plants, carefully cleaning, and resetting them. 



Notes are given on miscellaneous insects including rose chafer, cranberry 

 pests, Chinese mantis, Melauauster chiueitsis, grasshoppers, etc. The author 

 also discusses the preparation and application of lime-sulphur washes, soluble 

 oils, home-made miscible oils, carbolic acid, and arsenate of lead, iron, lime, and 

 barium. The use of carbolic acid was attended with variable results, in some 

 cases quite unsatisfactory. 



Report of the chief locust officer, C. M. Johnston {Dept. Agv. Orange River 

 Colony Ann. Rpt., 3 (1906-7), pp. 273-279, pis. 2). — Objections have been raised 

 against the initiation of the campaign for locust destruction on the ground that 

 it is a hopeless undertaking. Nevertheless, bonuses have been offered for the 

 collection of grasshoppers and this method has led to satisfactory results. Sim- 

 ilarly the benefits of arsenical baits and sprays are worthy of mention. The 

 author recommends that arsenites be issued free to farmers who wish to cooi)er- 

 ate in the destruction of locusts and that spray pumps may also be loaned to 

 such men. 



The spring grain aphis, W. L. English (Oklahoma Sta. Circ. Inform. 8, pp. 

 7, figs. 4). — The essential points in the appearance and habits of Toxoptera 

 graminums, or "green bug," are presented, with notes on its natural enemies. 

 It is believed by the author that the pest will not be of much importance dur- 

 ing the [tresent season. 



Hessian fly, W. L. English (Oklahoma ^ta. Circ. Inform. 9, pp. -i). — The 

 life history, natural enemies, and means of controlling this insect are discussed. 



The galls of Lipara lucens, W. Wagner (Verhandl. Ver. Naturiv. Unterhalt. 

 Hamburg, 13 (1905-1907), pp. 120-135, figs. 10). — Lipara lucens preferably 

 lives in galls produced in the stems of Phragmites communis. The life history of 

 the insect is described and notes are given on the peculiar anatomical structure 

 of the galls. 



The cotton bollworm, L. A. Moorhouse and J. F. Nicholson (Oklahom,a Sta. 

 Bui. 77, pp. 5Jf-56). — Biological and economic notes on this pest are given. The 

 authors recommend fall and winter plowing, the selection of early and rai)id 

 maturing varieties, and the planting at about every 200 rows, about June I, of 

 5 or 6 rows of corn as a trap crop, cultivating the corn thoroughly and thereby 

 lessening the number of worms which may at a later date attack the cotton. 



A fly injurious to beans, P. A. Desruisseaux (Agr. Prat. Pays Chauds, 7 

 (1907), No. 57, pp. 520-523, figs. -}). — A species of Agromyza is reported as 



