354 EXPERIMENT STATION RECORD. 



Cicadula sexnotata and its control, J. R. Jungner {Arb. Dent. Landw. 

 GescU.. 1906, .Vo. 7/.>, />/j. .>0. pi. J. figs. 3, (him. 1). — This insect is well known 

 throughout Germany as the cause of great injury to grasses, cereals, and cer- 

 tain legumes. 



The habits and life history of the species are described in considerable 

 detail. According to the author, a number of other insects are associated with 

 it in attacking cultivated crops, and parasitic fungi in some cases become 

 located on the plants as a result of its attacks. A number of insects and birds 

 prey upon Cicadula sexnotata, but the insect is not sufficiently controlled by 

 natural means. 



In combating the pest, fields of grain may be protected by plowing furx-ow^s 

 around them in which runniug water is maintained or which are covered with 

 a film of oil. Badly infested grass lands may be burned over in the fall, and 

 considerable l)enetit is derived from suitable systems of rotation. 



Hairy caterpillar pests of crops, H. Maxwell Lefroy (Agr. .Jour. India. 1 

 (1906), No. 3, PI). 187-191, pi. 1). — The habits and life history of a number of 

 caterpillars in India are briefly outlined. Attention is called to the desirability 

 of recognizing all such pests iu the early stages, since insecticides applied at 

 this time are far more effective. 



Hyponomeuta malinella, L. Dassonville (BiiJ. Acjr. Alffcrie et Tioiisie, 12 

 (1906), No. I'l, pp. 298-300, fig. 1). — The caterpillar of this insect is one of the 

 most serious pests of apple trees in the region of Ain-Touta. but experiments 

 have shown that it may be readily controlled by the use of arsenate of lead. 

 Directions are given for preparing this insecticide. 



Pear and cherry-tree slug, L. J. Newman (Jour. Dept. Afjr. Wefit. Aust., 14 

 (1906), No. 2, pp. 109-111, fig. 1). — The habits and life history of this pest are 

 briefly described. As remedies in controlling the insect the author suggests 

 dry air-slaked lime, white hellebore. Paris green, kerosene emulsion, benzole, 

 and Bordeaux mixture. 



Important notes on the gypsy and brown-tail moths, A. E. Stene (Off. Coinr. 

 Suppression Ggpsg and Broirn-tail Moths [R. /.]. Circ. 1, pp. 14, P?«- -'/)• — A 

 copy is given of the recent Rhode Isl:ind law regarding the extermination of 

 these pests and providing for the appointment of a commissioner to have charge 

 of the work. Brief notes are given on the life history of the pests and on 

 methods for controlling them. 



The gypsy and brown-tail moths, E. P. Felt (N. Y. State Mus. Bui. 103, 

 pp. 42, pis. 10). — On accoiuit of the unusual interest manifested at present in 

 the control of the gypsy and brown-tail moths, the author presents a general ac- 

 count of the appearance, habits, life history, and most effective means of com- 

 bating these pests. 



The fruit fly and its parasites, A. IIempel (Bol. Agr. [Sao Paulo], 7. ser., 

 1906. No. 5, pp. 206-214). — A ))rief historical statement is given concerning the 

 investigations conducted by various entomologists in the neighborhood of Bnhia 

 in search of parasites of Ceratitis capitata. A number of such parasites have 

 been found and have been kept under the observation of the author for the 

 purpose of determining their economic importance. 



As a result of this study it is concluded that parasites can not be depended 

 upon to furnish much assistance in controlling the pest, and fruit growers are 

 urged to continue the usual methods of control. 



The spread of the fruit fly (Ceratitis capitata) in the neighborhood of 

 Paris, A. Giard (Compt. Rend. Acad. Sci. [Paris], 143 (1906), No. 8, pp. 353, 

 354), — The author called attention to the presence of the fruit fly about Paris 

 six years ago. but little effort has been put forth to control this pest. In the 

 meantime it has gradually increased and is doing considerable damage. 



