. An encyclopædia of gardening; . s of aquatic , others amongst grass; but by far the greaternumber are aquatic. The perfect flies are found inabundance in the autumnal months. TheT. oleracea,or long-legs, feeds on the roots of the cabbage ; andthe T. crocata {fig. 409. a) and other species inhabitmeadows, and are common from spring to wheat-fly, T. tritici {b), twelve of which havebeen observed at one time, laying their eggs in asmgle ear of wheat, would soon become of seriousinjury to mankind, were not their race kept withindue bounds by several natural enemies, particu
. An encyclopædia of gardening; . s of aquatic , others amongst grass; but by far the greaternumber are aquatic. The perfect flies are found inabundance in the autumnal months. TheT. oleracea,or long-legs, feeds on the roots of the cabbage ; andthe T. crocata {fig. 409. a) and other species inhabitmeadows, and are common from spring to wheat-fly, T. tritici {b), twelve of which havebeen observed at one time, laying their eggs in asmgle ear of wheat, would soon become of seriousinjury to mankind, were not their race kept withindue bounds by several natural enemies, particularly the ichneumon tipult?. The well-known gaffer loi>g-legs, so frequently seen in houses in the autumnal evenings, flying about tlic of the candles and oftenperishing in the blaze, is the T. rivosa (c), one of the larger species of the genus. The eggs of the wheat-fly {d) are very small; when magnified they appear roundish i^); the larvje also (/), and the perfect insect(i), to be studied, should be magnified (g, h).. KooK IV. OF VERMIN.
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Keywords: ., bookcentury1800, bookdecade18, booksubjectgardening, bookyear1826
