Southern field crops (exclusive of forage plants) . - advances about fiftymiles a j-ear. However, in 1909 its eastward spread across. Fig. 177. — The Chain Cultivatok fou Tillage avd for THE FALLEN SqU.\BES TO THE the southern part of Mississippi was more than tA\ice thisdistance, liringing the weevil at the end of 1909 to withinal)out ten miles of the Alabama line in the vicinity of iXIo-l^ile. In the fall of 1910 this insect invaded several coun-ties in the southeastern part of Alaliama. Probaldy itsextension northward will l)e somewhat less rapid than itsea
Southern field crops (exclusive of forage plants) . - advances about fiftymiles a j-ear. However, in 1909 its eastward spread across. Fig. 177. — The Chain Cultivatok fou Tillage avd for THE FALLEN SqU.\BES TO THE the southern part of Mississippi was more than tA\ice thisdistance, liringing the weevil at the end of 1909 to withinal)out ten miles of the Alabama line in the vicinity of iXIo-l^ile. In the fall of 1910 this insect invaded several coun-ties in the southeastern part of Alaliama. Probaldy itsextension northward will l)e somewhat less rapid than itseastward spread. Crossing the Rio (irande from ^Mexico about 1S92 ithas persistently spread eastward and northward. Theniai) (Fig, 178) shows that by the close of 1909 the boll-wee^il occujiied the greater part of the cotton-growing COTTOy jysECTS 40&
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
