Manual of vegetable-garden insects . take ou thiscolor (Fig. 37). The full-grownmaggot is about ^ inch in length,whitish in color and cylindrical in form, tapering towards thehead and bluntly truncate behind. When mature the larvalskin hardens and turns reddish brown to form the pupariumwithin which the true pupa is to be found. This trans-formation may take place in the mines but usually the pupariaare found under rubbish on the surface of the ground. InKentuckv the flies have been observed to emerge in late. Fig. 37 showing the work of the importedturnip leaf-miner INJURIOUS TO CABBAGE AND R
Manual of vegetable-garden insects . take ou thiscolor (Fig. 37). The full-grownmaggot is about ^ inch in length,whitish in color and cylindrical in form, tapering towards thehead and bluntly truncate behind. When mature the larvalskin hardens and turns reddish brown to form the pupariumwithin which the true pupa is to be found. This trans-formation may take place in the mines but usually the pupariaare found under rubbish on the surface of the ground. InKentuckv the flies have been observed to emerge in late. Fig. 37 showing the work of the importedturnip leaf-miner INJURIOUS TO CABBAGE AND RELATED CROPS 45 fall. The insect may, therefore, hibernate in the adult condi-tion. The fiy has an expanse of about j^ inch and its generalcolor is brown, the antennae being yellow and the legs species has been recorded as feeding on cabbage, cauli-flower, radish, turnij), Iceland poppy, horse nettle and mouse-ear. The native cabbage leaf-miner, Scaptoniyza aduHa Locw This species is closely related to the preceding and has beenreared in company with it. It injures the plant in a similar is widely distributed from ]\Iaine to Florida and west toIllinois but is more abundant in the southern part of its range. The imported cabbage Icaf-Diiner, ScaptoinyzagraviinuDi Fallen This European leaf-miner is now distributed in this countryfrom New Hampshire to Texas. Its habits are similar to thoseof the two preceding species. In this country it has been rearedfrom cabbage and in Europe it attacks
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1918
