Title page for ETD etd-06082010-020710


Type of Document Dissertation
Author Baer, Ronald G.
URN etd-06082010-020710
Title A morphological and systematic study of the first and second instars of the Kermesidae in the Nearctic region (Homoptera: Coccoidea)
Degree PhD
Department Entomology
Advisory Committee
Advisor Name Title
Kosztarab, Michael Committee Chair
Eaton, John L. Committee Member
Fox, J. A. Committee Member
Heikkenen, Herman John Committee Member
Robinson, William H. Committee Member
Keywords
  • Scale insects
Date of Defense 1978-08-01
Availability restricted
Abstract
The Cocco idea or scale insects are among the most important pests of sylvicultural, ornamental, agricultural and greenhouse plantings throughout the world. There are 21 families comprising 6,000 species. Direct injury occurs from the withdrawal of sap while feeding and from the production of galls. Some scale insects are host specific while others are polyphagous. They feed on many different parts of plants including the roots, trunk, stems, leaves, buds and fruit.
Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
[VT] LD5655.V856_1978.B24.pdf 9.17 Mb 00:42:28 00:21:50 00:19:06 00:09:33 00:00:48
[BTD] next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.

Browse All Available ETDs by ( Author | Department )

dla home
etds imagebase journals news ereserve special collections
virgnia tech home contact dla university libraries

If you have questions or technical problems, please Contact DLA.