Results 31 to 40 of about 882 (122)

ESTABLISHMENT OF NEOCHETINA SPP.: THEIR PATTERN OF LOCAL DISPERSAL AND AGE STRUCTURE AT THE RELEASE SITE [PDF]

open access: yes, 2011
Study on the distribution pattern and age structure ofNeochetina spp. (Coleoptera: Curculionidae) at the release site was conducted to know a) the distribution pattern of the weevil, b) its establishment status, c) its survival rate in the field, and d ...
KASNO, KASNO   +3 more
core   +2 more sources

Catalogue des ennemis naturels des macrophytes flottants Pistia stratiotes, Salvinia molesta et Eichhornia crassipes [PDF]

open access: yes, 1991
We identified from bibliographical review and field observations fourty two species composed essentially of molluscs and insects. These animals attack floating plants such as E. crassipes, P. stratiotes and S. molesta.
Sankaré, Y.
core  

Impact of nutrients and herbivory by Eccritotarsus catarinensis on the biological control of water hyacinth, Eichhornia crassipes [PDF]

open access: yes, 2007
Many water hyacinth infestations in South Africa are the symptom of eutrophication, and as a result, biological control of this weed is variable. This study examined the effects of herbivory by the mirid, Eccritotarsus catarinensis, on water hyacinth ...
Byrne, M J   +2 more
core   +1 more source

Biological Control of Hazelnut Weevil (Curculio nucum L., Coleoptera, Curculionidae) Using the Entomopathogenic Fungus Beauveria bassiana (Balsamo) Vuill. (Deuteromycotina, Hyphomycetes) [PDF]

open access: yes, 2005
The need to biologically control phytophagous insects has led researchers to consider using microorganisms to control insect pests in the field. On this basis, we decided to conduct field tests to determine the effectiveness of a commercial product made ...
Paparatti, Bruno, Speranza, Stefano
core   +1 more source

Vegetation response to cattail management at Cheyenne Bottoms, Kansas [PDF]

open access: yes, 2004
Dense, monospecific cattail (Typha spp.) stands are a problem in many prairie wetlands because they alter habitat structure and function, resulting in a decrease in use by wildlife species.
Hands, H.M.   +2 more
core  

Current Status of Water Hyacinth (Eichhornia crassipes) in Ethiopia: Achievements, Challenges and Prospects: A Review [PDF]

open access: yes, 2021
Water hyacinth is one of the rapidly spreading aquatic weeds, both globally and in Ethiopia, causing adverse effect on ecosystem and human benefits.
Dechassa, Nagassa
core   +1 more source

Water hyacinth infestation of River Niger and Kainji Lake, Nigeria [PDF]

open access: yes, 2002
(6 page ...
Chizea, F.D.   +3 more
core  

INTEGRATED USE OF NEOCHETINA BRUCHI AND ALTERNARIA EICHHORNIAE IN CONTROLLING WATER HYACINTH

open access: yesBiotropia: The Southeast Asian Journal of Tropical Biology, 1999
The study on the integrated use of the chevroned water hyacinth weevil (Neochetina bruchi Mustache) and the water hyacinth blight disease (Alternaria eichhorniae Nag Raj & Ponnappa) in s uppressing water hyacinth growth was carried out under field ...
KASNO   +4 more
doaj  

The integrated approach of water hyacinth control on Lake Kainji: with special regard to the design, construction and installation of a water hyacinth barrier across the River Niger [PDF]

open access: yes, 1999
This document lists the undesirable effects of water hyacinth (Eichhornia crassipes) on fisheries in Lake Kainji (Nigeria) and the integrated Water Hyacinth Control Programme in its ongoing fisheries management and development activities on the lake ...
Ayeni, J.S.O., Mdaihli, M.
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

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