178 ORDnt niPTERA. 



Thr wurmi ncjuirr ihrlr full »iz«- niul |>«Tf«Tli<.n, rn«>t tlu-Jr akins, nmi drM-end to the 

 Rruutttl cjirlv ill Aii8»L''t, or |xTlin|>» n« lat«> n» iho iiiidillc of tlw lannlii. Th«y l>ury thrm- 

 •rlvrs in thr »iiil nt thr lirpth of aUiUt an iiicti, whrri- llir\ rriuaiii ihn'Ut^h thr wiulvr. 

 Therr i» thrrrforr hut otir hitMMi in a M-a»on. '1 hr worai i!t Ajx-rtlil) rliunctd into « l'ii| a. 

 In which Htatr it rrmaiii!t until rrudy ti> iMUc fruni the gruund lu June or July of ibe next 

 year, in the^luingo state, or the |»erfect fly. 



Thr lueatu that have heen pruituMtl to de9trt>y this kind of wheat-fly ore numcroiu : If 

 ■uy of thrni are to be rffrctual, it is evident they should Ix- n-*orted to over the whole 

 dintrirt infested l>y tlie iiiM-rt. 



Anioiii; the r»'m«tii(<! which seem to liuve U-in ut l«a>t ]>nrtiully succeMful. is that of the 

 ai>andoniiirnt of tiie cultivation of winter wiwat for the suUiitution of the .sj-rinK variety, 

 and late Mwing. The n-niedy oiK-rutes on the |.rinri|dr of Kturvatlou.and Would j-r-laldy 

 be completely succesjiful, were it not that grus»e8 and other i;raiu!>, as oats, rje and I'arley, 

 ofltT suituhle recipients for the efjRS of the Insect, and furnish nutrimcut for iu progeny. 



It is rt-roiniiieiuU-d to smoke them out. To carry on this plan of warfare, the flies must 

 1m< nttjirkc<i in the evenini;, when thry ris*' from their lurking places in the ilepths of the 

 grain, llrimstone, minaled witli other rond)Ustil'le matter, should U- burned in a irftsition 

 to give them the full In-nelit of the smoke ami vaiK>r when they rise ujKjn the wing, and 

 hover over the grain. 



Another refommen«lation is to sow fine ijuicklime over the field when the heads of the 

 grain are moist : this may l>e repeatetl several times. 



It is recommended by Dr. F^irni to first catch, and then kill them. The method of doing 

 this is sulhcij-ntly simple and easy, and deserves a trial. Take a long rope, attached to « 

 widi- ofH-n tight l>ag ; and let two men, one at each i-nd of the n>i>e, pass through the field, 

 drag^ging the oj>en wiile-mouthe<i net over the heads of wheat. Go over the nhole field In 

 this way, and millions of tlie Uy will l>e caught if the net or bag is prujH'rly munxged. 



Deep ploughing is als«> a reme<ly that deserves trial, and indeed has U-en tried and 

 followed with success. This, of course, is to be resorteil to after harvest : the ftiject is to 

 bury the insects so deep that they will be unable to find their way out of the gruund the 

 next scas«jn. 



The Ctcidomyia which 1ms api>eareti in this omntry is now reganied as identical with 

 the C. tntiri of Kiin'f>e, which has l>een known in Kiit;land and Scotland for two-thirds of 

 a century, .ind was descriU'd at an early jieriod. In this country, esjxcially in the vivinity 

 of Allwny and in tlie ct.imtyof Ilerkshire in Maivsachusetts.it has Uen disapi>earing gra- 

 dually for the last ten years, and the wheat crop lias again become a profitable one ; and 

 the prnlinbility is, that with our present knowledge of its habits, and of the means for its 

 extirpation or for avoiding Its worst injuries, we may hereaAer escape its depredations. 



