Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books 1 - 9 of 9 on Usually. however, the natural enemies of the louse seriously reduce its numbers by....
" Usually. however, the natural enemies of the louse seriously reduce its numbers by the time the vine ceases its growth in the fall, and the few remaining lice, finding no more succulent and suitable leaves, seek the roots. Thus, by the end of September... "
Annual Report of the Nebraska State Horticultural Society for the Year ... - Page 82
by Nebraska State Horticultural Society - 1895
Full view - About this book

Annual Report - Entomological Society of Ontario: 1871-1876, Volumes 2-8

Entomological Society of Ontario - Insect pests - 1872
...fall, and the few remaining lice, finding no more succulent and suitable leaves, seek the roots. Thus by the end of September, the galls are mostly deserted, and those which are left are almost always infested with mildew, and eventually turn brown and decay. On the roots the young...
Full view - About this book

Household and Farmers' Cyclopedia: One Hundred Thousand Facts for the People ...

Daniel R. Shafer - Agriculture - 1876 - 606 pages
...fall, and the few remaining lice, finding no more succulent and suitable leaves, seek the roots. Thus, by the end of September, the galls are mostly deserted, and those which are left are almost always infested with mildew (Bottytis •vitieola, Berkely), and eventually turn brown and...
Full view - About this book

Report, Volume 4

Kentucky. Dept. of Agriculture, Labor and Statistics - Agriculture - 1881
...female, which soon becomes wonderfully prolific. At the end of September the galls are mostly deserted. The young lice attach themselves to the roots, and...gall-inhabiting insect occurs only as an agamic and apterous female form. It is but a transient summer state, not at all essential to the perpetuation of the species,...
Full view - About this book

Journal: Appendix. Reports, Volume 2

California. Legislature - California - 1881
...Phylloxera et leur avenir en Europe." Paris, 1875. [NEWLY HATCHED IjAEVA ; GŁ, ventral ; b, dorsal view.] By the end of September the galls are mostly deserted, and those which are left are usually infected with mildew, and eventually turn brown and decay. The young lice attach themselves...
Full view - About this book

Injurious Insects of the Farm and Garden

Mary Treat - Gardening - 1882 - 288 pages
...fall, and the few remaining lice, finding no more succulent and suitable leaves, seek the roots. Thus, by the end of September, the galls are mostly deserted, and those which are left are almost always infested with mildew, and eventually turn brown and decay. On the roots, the young...
Full view - About this book

Injurious Insects of the Farm and Garden

Mary Treat - Gardening - 1882 - 288 pages
...and the few remaining lice, finding no more succulent and suitable leaves, seek the roots. Thus,'by the end of September, the galls are mostly deserted, and those which are left arc almost always infested with mildew, and eventually turn brown and decay. On the roots, the young...
Full view - About this book

Illustrated Descriptive Catalogue of American Grape Vines: A Grape Growers ...

Bush, firm, vinegrowers, Bushberg, Mo. (1883. Bush & son & Meissner) - Grapes - 1883 - 153 pages
...°f tendru' Phylloxera. 53 j,jg -LOUSE: view. Fig. 75. MoTiTKR GALL-LOUSE : ventral and dorsal views. By the end of September the galls are mostly deserted...young lice attach themselves to the roots, and thus hi- NjtWLY HATCHKD żALL beniate. It is an im- "' ventral ; b, dorsal portant fact that the gall-inhabiting...
Full view - About this book

Outlines of Economic Entomology: Designed as a Textbook for School and ...

Noble Murray Eberhart - Beneficial insects - 1888 - 92 pages
...fall, and the few remaining lice, finding no more succulent and suitable leaves, seek the roots. Thus, by the end of September the galls are mostly deserted, and those which are left are almost always infested with mildew, and eventually turn brown and decay. On the roots, the young...
Full view - About this book

Annual Report - Entomological Society of Ontario: 1871-1876, Volumes 2-8

Entomological Society of Ontario - Insect pests - 1872
...fall, and the few remaining lice, finding no more succulent and suitable leaves, seek the roots. Thus by the end of September, the galls are mostly deserted, and those which are left are almost always infested with mildew, and eventually turn brown and decay. On the roots the young...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download PDF