1146 EXPEHIMKNT STATION RECORD. 



ziiii(llii). ui|is.v i.ioth, l)ro\vii-t;iil iudIIi, sciumsIi Iiorcr (Mdittin sati/riniformis), 

 peach root borer (S(iiniiiioi<l<(i criliosd i, t'.ill wcliworin, l>;iiz\voriii, mikI iiciicli 

 siiwtly { I'diiiithUiUH iicr.siciinn . 



A preliminary bulletin on some economic insects and plant diseases of 

 Indiana, H. W. Douglass ( hididna polls, Ind., 1907, pp. 2S, /iys. 8). — A brief 

 account of the more iiiiitort;iiit insects jind plant diseases including methods of 

 treatment. 



The principal insects injurious to horticulture during 1906-7, M. II. 

 SwENK (liul. Ncbr. St(tfc llort. fe'oc, Ao. U), pp. 2'i. fl<js. 31). — In this bulletin, 

 which forms part 1 of the report of the State entomologist, the author considers 

 the insects which have been actively injurious to horticulture in Nebraska dur- 

 ing the 2 years ended April 1, 190S. These are the codling moth, lesser apple 

 worm, leaf crumpler {Mineolaindiginella), white-marked tussock-moth (Homero- 

 campa Icucostlgma), apple-ti'ee tent-caterpillar, yellow-necked apple-tree cater- 

 pillar {Dafana ministra), pear slug {EriocampoideH limacina), rose slug 

 (Monofitegia rosw), leaf-cutter bees (Mer/achile spp. ), buffalo tree-hopper 

 (Ceresa bubal iii'!), snowy tree cricket {(EronlhUH nlvcns\, plum curculio, and 

 plum gouger. 



Scale insects injurious in Nebraska during 1906-7, H. S. Smith {BuL 

 Nebr. State Hart. Soc, xYo. 20, pp. 16, figs. 6). — This bulletin forms part 2 of 

 the report of the State entomologist. 



While the San Jose scale does not occur in Nebraska, several other species 

 are a source of injury. The oyster-shell scale was the cause of considerable 

 injury to apple trees during the 2 years under report. The scurfy scale is not 

 as common as Lepidosaphcs ulini and rarely does much injury. The elm-tree 

 white-scale {Chionaspis americana) occasionally becomes injurious to the com- 

 mon elm. The pine leaf scale (C. pinifoJia) is said to be a very common species 

 of both native and cultivated conifers. The cottonwood scale (C ortholobis) 

 lias been quite abundant in eastern Nebraska for several years on young poplars, 

 cottonwood, and willow. The cottony maple scale has not been sufficiently 

 abundant Muring the past 2 years to cause much injury. During the summer 

 of 1907 the western cottony grass scale (Eriopcltis coloradeiisis) became preva- 

 lent on wild wheat grass in the southwestern portion of the State. Several 

 parasites of this scale have been bred by the author from the egg sacs, the most 

 common being the dipterous ])arasite, Lcvcopis vlgricornls. 



Injurious insects and other animals observed in Ireland during the year 

 1907, G. H. Carpenter ( Econ. Proc. Roy. Dublin Soc, 1 (IDOS). No. 15, pp. 

 559-588, j)ls. 6, figs. 10). — Insects of the year are reported under the following 

 headings : Parasites of domestic animals, corn insects, clover, cabbage, and 

 mangold insects, potato and parsnip insects, tobacco insects, orchard insects, 

 hawthorn insects, and f(n-<>st insects. 



Insect investigations in Mexico, A. Koebele {Haicall. Planters' Mo., 27 

 {1908), No. 12, pp. 507-513). — This is an account of investigations made in 

 Mexico by the author. 



The moth borer (Diutnra saccharalis) is said to be widely distributed in 

 the country. It is stated that 50 per cent of the eggs deposited are destroyed 

 by a parasite (Tru'hogramma pretiosa). While the pest does not occur in 

 Hawaii, it seems quite probable that it will be sooner or later introduced, as 

 it is a species widely distributed. 



The large Mexican sugar-cane leaf-hopper (Cyrtodlsca major) is said to be 

 injurious in the State of Morel os. The Mexican sugar-cane hopper (Cgrtodisca 

 sp.) is widely distributed, breeding throughout the year. Its eggs are de- 

 stroyed to a large extent by fungus diseases and parasites. Other injurious 



