The bio-ecology, economical importance and control of three saturniids injurious to forest trees
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| dc.contributor.advisor | Smit, C.J.B. | |
| dc.contributor.postgraduate | Van den Berg, Michael Arnoldus | |
| dc.date.accessioned | 2022-05-17T11:21:21Z | |
| dc.date.available | 2022-05-17T11:21:21Z | |
| dc.date.created | 2021/11/09 | |
| dc.date.issued | 1971 | |
| dc.description | Thesis (DSc)--University of Pretoria, 1971. | |
| dc.description.abstract | The pine emperor Nudaurelia cytherea clarki Geertsema, the poplar emperor, Pseudobunaea irius (F.) and the pine-bark emperor, llolocerina smilax (Westw .), are three important defoliators of especially Pinus patula Schlechtd. & Cham. trees. These studies were undertaken to gain more knowledge of the biology and ecology of these insects, so that effective and economical methods of controlling them can be devised. A further aim was to make a comparison between the potential wood loss, as a result of defoliation, and the cost of insecticidal spraying. | |
| dc.description.availability | Unrestricted | |
| dc.description.degree | DSc | |
| dc.description.department | Zoology and Entomology | |
| dc.identifier.citation | * | |
| dc.identifier.uri | https://repository.up.ac.za/handle/2263/85444 | |
| dc.language.iso | en | |
| dc.publisher | University of Pretoria | |
| dc.rights | © 2020 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. | |
| dc.subject | UCTD | |
| dc.subject | Bio-ecology | |
| dc.subject | economical importance | |
| dc.subject | control | |
| dc.subject | saturniids injurious | |
| dc.subject | forest trees | |
| dc.title | The bio-ecology, economical importance and control of three saturniids injurious to forest trees | |
| dc.type | Thesis |
