Our native grapeGrapes and their cultureAlso descriptive list of old and new varieties . 6S OUR NATIVE The eggs began to hatch when six or eight days old. The young lice, which areof bright yellow color, escape from the galls, spreading themselves all over the vine,selecting the most tender part of the leaf to begin their operations by piercing the leaf, appropriating the sap, forminggalls and depositing eggs, as theirparents had done before. This pro-cess continues during the summer,until the fifth or sixth egg brings forth a fertile female,which soon becomes wonderfu


Our native grapeGrapes and their cultureAlso descriptive list of old and new varieties . 6S OUR NATIVE The eggs began to hatch when six or eight days old. The young lice, which areof bright yellow color, escape from the galls, spreading themselves all over the vine,selecting the most tender part of the leaf to begin their operations by piercing the leaf, appropriating the sap, forminggalls and depositing eggs, as theirparents had done before. This pro-cess continues during the summer,until the fifth or sixth egg brings forth a fertile female,which soon becomes wonderfully pro-lific. By the end of September the gallsare mostly deserted, and those whichare left appear as if infested with mil-dew and, finally, turn brown and de-cay. The young lice attach themselvesto the roots and there pass the winterin a dormant state. It is an importantfact, that the gall inhabiting insectoccurs only as an agamie and wing-Under side of Leaf covered with Galls, nat. size. less female form. It is but a tran-sient summer state and does, compared with the other root-inhabiting type, buttri


Size: 1609px × 1554px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, booksubjectviticulture, bookyear