Species composition and larval instar population structure of Scarabaeids in forestry in the Natal Midlands

dc.contributor.advisorGovender, Premen
dc.contributor.emailupetd@up.ac.zaen
dc.contributor.postgraduateNdou, Rudzani Gloriaen
dc.date.accessioned2013-09-07T03:57:34Z
dc.date.available2006-07-12en
dc.date.available2013-09-07T03:57:34Z
dc.date.created2001-04-01en
dc.date.issued2006-07-12en
dc.date.submitted2006-07-12en
dc.descriptionDissertation (M Inst Agrar (Sustainable Insect Management))--University of Pretoria, 2006.en
dc.description.abstractWhite grub is the common name of most scarabaeid larvae and some are considered ! as grubs of economic importance to agricultural crops. Expansion of forestry into previous croplands has resulted in some pests of previous agricultural crops becoming important in forestry. Field trials planted over three seasons, determined the mortality factors influencing the establishment of commercial eucalypt and black wattle plantations in the Natal Midlands. White grubs had the highest pest status. I Characteristic raster pattern was used to identify larvae as a particular morphospecies with the aid of the dissecting microscope. Head I capsule width pattern was used to determine the larval instars responsible for the damage. High incidences of seedling damage was recorded from December to April. Several morphospecies were found I damaging seedlings simultaneously. Morphospecies 1, 2, 3, 4, 5 and 6 were responsible for the damage but morphospecies 1, 2, 4 and 5 were the most predominant. First, second and third instar larvae were found damaging seedlings and ! they sometimes occurred simultaneously. Second and third instar larvae were the predominant larval instars.en
dc.description.availabilityunrestricteden
dc.description.departmentZoology and Entomologyen
dc.identifier.citationNdou, RG 2001, Species composition and larval instar population structure of scarabaeids in forestry in the Natal Midlands, MInstAgrar dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/26222 >en
dc.identifier.otherH965/agen
dc.identifier.upetdurlhttp://upetd.up.ac.za/thesis/available/etd-07122006-092540/en
dc.identifier.urihttp://hdl.handle.net/2263/26222
dc.language.isoen
dc.publisherUniversity of Pretoriaen_ZA
dc.rights© 2001 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.en
dc.subjectForests and forestry diseases and pests kwazulu-naen
dc.subjectUCTDen_US
dc.titleSpecies composition and larval instar population structure of Scarabaeids in forestry in the Natal Midlandsen
dc.typeDissertationen

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