908 EXPERIMENT STATION RECORD. 



Eel worm iTylenchus devastatrix), E. A. Or3IEROD {Feport of 

 ohsercation.s of injurious insects and common farm pests flurini/ the year 

 1896; 20th rpt. London : Slmp>lcin. Marshall, Hamilton, Kent d' Co., 

 1897, pp. 44-:j:J, 107-110, Jit/s. 4, pi. 1). — This ^vorm, producing in oats 

 what is kuowu as '-tulip root" or "segging," and iu clover as the '-stem 

 sickuess," and in onions as ''oniou sickness," is described at some length. 



In onions it occurs iu the bulbs and in the stalk just above them, 

 causing them to rot away. When once in the laud it is very dititicult 

 to eradicate, aiul may be easily carried from place to place on cart 

 wheels, etc. Care should be taken not to sow infested seed, and thus 

 allow it to gain entrance into a lield. Onion seed may be steeped in a 

 dilute solution of sulphuric acid (1 pint to 150 qts. of water) before 

 sowing. The field crops may be covered with a dressing of sulphate 

 of potash, of iron, or of ammonium, at the rate of from 100 or 200 lbs. 

 per acre, or as much as 300 lbs. per acre in the case of sulphate of 

 potash. Mixtures of these may be ai)plied to advantage. 



To destroy the worms iu the land, very deep plowing shouM l>e 

 resorted to. 



Injurious insects, E. A. Oemerod {Report of observations of injuri- 

 ous insects and conimon farm pests during the year 1896; 20th rpt. Lon- 

 don: Simplin. Marshall, Hamilton, Kent tf- Co., 1807, pp. 100, fiys. 35). — 

 After a brief discussion of the meteorological conditions of the year, as 

 compared with those of the preceding jear, and giving a list of the 

 insects and affected plants concerning which inquiries were received 

 during the year, the author proceeds to discuss in detail the coninion 

 pests of the orchard, house, and garden. American authorities are 

 freely quoted and sometimes details from letters are given. The cus- 

 tomary reliable remedies and preventives are recommended. A varia- 

 tion from the usual sticky band for preventing larv;e from crawling up 

 a tree ma}' be noted. It consists of twisted ropes of straw covered 

 with wagon grease aud placed about the base of the trees. 



Caddis fiy larv.e are noted as destructive to water cresses and the 

 remedy recommended of Hooding the beds and dragging the plants 

 with a weighted log, which causes the worms to rise to the surface of 

 the water, where they float downstream with the current. In an 

 appended note wagon grease, if it does not contain irritating matter, 

 is recommended as a cheap aud reliable remedy for warbles, especially 

 when a little sulphur is added to it. Mercurial ointment is not thought 

 an advisable remedy, since it is apt to be used carelessly. It should be 

 applied in minute quantities, and only once as a mere touch to the 

 warble. 



The pests treated here are as follows : The codling moth ( Carpocapsa 

 pomonella), sawfly (Hoplocampa testudinea), asparagus beetle (Crioceris 

 asparagi), beet carrion beetle {Silpha opaca), leather and bone beetle 

 {Berme^tes vulpinus), cabbage butterflies (Pieris brassicw and P. rapw), 

 the German cockroach {Phyllodromia germanica), the corn, grass, and 



