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Annals of Horticulture. 



quired to bear a label supplied by the commissioner of agri- 

 culture, at a cost of 50 cents per 100 pounds. 



The particular activities of the year in the experiment sta- 

 tions are indicated by the indexes on a later page (§§ 7 and 8, 

 Part II.), and few of them need be discussed here.* 

 The insects which have most persistently baffled the skill 

 of the experimenters are the rose-chafer and the wire- 

 chafer" worm, both of which have been the subject of close 

 investigation during the year. No practical remedies 

 have yet been devised against the rose-chafer, and the 

 greatest reliance must still be placed upon various methods 

 of gathering the beetles. E. S. Carman, editor of the Rurac 

 New-Yorker, has discovered that water at a temperature of 

 125 degrees to 130 degrees Fahr. , will kill the insects, but it 

 is practically impossible to apply water at this temperature 

 to trees, although it may be accomplished on grape-vines. 

 The insects breed on light or sandy soil, and seem to prefer 

 sod-land. Professor J. B. Smith, therefore, advises f to 

 "prevent the breeding of the insects on your own land. This 

 can be done by using the heaviest land, only, for grass, and 

 keeping just as little light land as possible in sod. As the in- 

 sects pupate early in May, a thorough cultivation of all the 

 ground that can be cultivated will turn up and destroy a 

 large proportion in this stage. Either late in fall or early in 

 spring, land should be plowed and top-dressed with kainit. 

 Where light .grass-land is to be put into use, plowing at this 

 time would be most effective in destroying the insects. 

 Vineyards, especially, should be deeply and thoroughly culti- 

 vated in May, to turn up and destroy pupae. The clearer the 

 land is kept, the fewer insects will come to maturity. A 

 great point is gained if the enemy must come from the out- 

 side, and does not appear everywhere in the vineyard at one 

 time. ' ' 



Wire- The wire-worms have been the subject of an extensive in- 

 forms. vest jg at j on by Professor Comstock, of Cornell University. J 

 No positive remedies have been found, however. A short ro- 

 tation is one of the best means of lessening injury, as is also 



* An epitome of the new practices in economic entomology and mycology will be found 

 in the new edition of the Horticulturist's Rule-Book. 

 f Bull 82. New Jersey Exp. Sta. 38. 

 IBull. 33, Cornell Exp. Sta. 



