Results 51 to 60 of about 509 (144)

The effect of temperature on biological control of water hyacinth, Eichhornia crassipes (Pontederiaceae) in South Africa [PDF]

open access: yes, 2012
MSc., Faculty of Science, University of the Witwatersrand, 2011The behaviour and physiology of every insect, during all developmental stages, is largely determined by temperature. Metabolic rate, flight activity, nutrition, growth rate, oviposition and
King, Anthony Michael
core  

An Overview of the Main Environmental Issues Affecting Kisumu and Lake Victoria's Winam Gulf [PDF]

open access: yes, 2009
This overview was produced in response to a request from the Mayor of Kisumu, who expressed the urgent need to deal with the deteriorating environment in and around the City and in the Winam Gulf of Lake Victoria. Researched and written by experts at the
Castro, Andrea   +3 more
core   +2 more sources

Functionality of the plastron in adults of Neochetina eichhorniae Warner (Coleoptera, Curculionidae): aspects of the integument coating and submersion laboratory experiments Funcionalidade do plastrão em adultos de Neochetina eichhorniae Warner (Coleoptera, Curculionidae): aspectos do revestimento tegumentar e experimentos laboratoriais de submersão

open access: yesRevista Brasileira de Entomologia, 2012
The plastron theory was tested in adults of Neochetina eichhorniae Warner, 1970, through the analysis of the structure that coats these insects' integument and also through submersion laboratorial experiments. The tegument processes were recognized in three types: agglutinated scales with large perforations, plumose scales of varied sizes and shapes ...
Wesley Oliveira de Sousa   +2 more
openaire   +2 more sources

Water hyacinth, Eichhornia crassipes: A case of successful Biological Control in Lakes Kyoga and Victoria - Uganda [PDF]

open access: yes, 2003
Water hyacinth, Eichhornia crassipes, a world known water -weed was until lately serious a problem in Uganda and indeed the entire East African region. The weed caused serious socio-economic impact on the livelihood of Ugandans.
A. Ogwang, James, Molo, Richard
core   +1 more source

Biological Control Efforts of Water hyacinth (Eichhornia crassipes (Mart.) Solm) on Kainji Lake, Nigeria [PDF]

open access: yes, 2014
Biological control of water hyacinth (Eichhornia crassipes (Mart.) Solm) was monitored on Kainji Lake between 1995 and 1999. The two most important host specific natural enemies of water hyacinth (Neochetina eichhorniae and N.
Attene G.   +6 more
core   +2 more sources

Current levels of suppression of waterhyacinth in Florida USA by classical biological control agents [PDF]

open access: yes, 2014
Waterhyacinth, Eichhornia crassipes (Mart.) Solms (Pontederiaceae), has been a global target for classical biological control efforts for decades. In Florida, herbicidal application is the primary control method employed, usually without regard for the ...
Center, Ted D.   +6 more
core   +1 more source

Damage byNeochetinaWeevils (Coleoptera: Curculionidae) Induces Resistance inEichhornia crassipes(Commelinales: Pontederiaceae)

open access: yesFlorida Entomologist, 2013
Induced resistance in invasive plants might influence herbivore performance or preference, and hamper herbivore-based biological control management. Specialist weevils Neochetina eichhorniae Hustache (Coleoptera: Curculionidae) and N. bruchi Warner (Coleoptera: Curculionidae) are two herbivores commonly used to control Eichhornia crassipes (Mart ...
openaire   +1 more source

Deskstudie biologische bestrijding van invasieve exotische oever- en wateronkruiden in Nederland [PDF]

open access: yes
In dit rapport wordt een overzicht gegeven van biologische onkruidbestrijding in het algemeen, en ontwikkelingen op het gebied van biologische bestrijding van elf belangrijke exotische oever- en wateronkruiden in Nederland in het bijzonder.
Franke, A.C.   +2 more
core   +3 more sources

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