Results 11 to 20 of about 510 (131)

Associations between Waterhyacinth Weevils (Neochetina eichhorniae and N. bruchi) and Phenological Stages of Eichhornia crassipes in Southern Florida

open access: yesThe Florida Entomologist, 1992
We studied Neochetina eichhorniae and N. bruchi populations at 22 sites in southern Florida during mid-summer 1985. Species composition, reproductive females (as a percentage of total females), and flight muscle development of N. eichhorniae populations varied greatly among sites. N.
Ted D. Center, F. Allen Dray
openaire   +3 more sources

Life Cycles of Neochetina bruchi Warner and Neochetina eichhorniae Hustache as Potential Biological Control Agents in the Semi Arid Zone of Nigeria [PDF]

open access: yesAmerican Journal of Life Sciences, 2015
Biological control is the use of living organism to suppress or control another living organisms, and it is cost-effective and environment-friendly. Water hyacinth Eichhornia crassipes infestations in Nigeria stifles economic uses of surface waters, and arthropods have been used as biological control agents to reduce water hyacinth infestations, with ...
openaire   +3 more sources

Chevroned Water Hyacinth weevil Neochetina bruchi Hustache (Insecta: Coleoptera: Curculionidae)

open access: yesEDIS, 2021
Neochetina bruchi Hustache is commonly referred to as the chevroned water hyacinth weevil and is a weed biological control agent used to manage water hyacinth, Pontederia crassipes Mart.
Eutychus Kariuki, Carey Minteer
doaj   +5 more sources

Water hyacinth Eichhornia crassipes (Mart.) Solms-Laubach dynamics and succession in the Nyanza Gulf of Lake Victoria (east Africa): implications for water quality and biodiversity conservation. [PDF]

open access: yesScientificWorldJournal, 2012
This study, conducted in Nyanza Gulf of Lake Victoria, assessed ecological succession and dynamic status of water hyacinth. Results show that water hyacinth is the genesis of macrophyte succession. On establishment, water hyacinth mats are first invaded by native emergent macrophytes, Ipomoea aquatica Forsk., and Enydra fluctuans Lour., during early ...
Gichuki J   +6 more
europepmc   +2 more sources

Problem of Water Hyacinth (Eichhornia crassipes (Mart.)) in Lake Tana (Ethiopia): Ecological, Economic, and Social Implications and Management Options

open access: yesInternational Journal of Ecology, Volume 2023, Issue 1, 2023., 2023
Lake Tana is Ethiopia’s largest body of fresh water, covering approximately 3,200 km2. Despite its multidisciplinary applications in Ethiopia and neighboring countries, water hyacinth (Eichhornia crassipes (Mart.) Solms) is a significant problem in this large lake. This invasive weed first appeared in Lake Tana in 2011 and quickly spread to the water’s
Sewnet Getahun   +2 more
wiley   +1 more source

Effects of different scenarios of temperature rise and biological control agents on interactions between two noxious invasive plants

open access: yesDiversity and Distributions, Volume 27, Issue 12, Page 2300-2314, December 2021., 2021
Abstract Aim An increasing number of exotic plants and their biological control agents are being introduced into new regions. Therefore, it is necessary to study their interactions and to manage the future directions of plant invasions under different scenarios of temperature rise. Location China. Method We investigated the distribution patterns of the
Xiaoliang Zhang   +7 more
wiley   +1 more source

Persebaran agens hayati Neochetina spp. (Coleoptera: Curculionidae) di jawa barat dan DKI jakarta

open access: yesJurnal Entomologi Indonesia, 2017
The establishment of Neochetina spp. as biocontrol agent of waterhyacinth are related to the weevil’s ability to disperse and to increase their population sizes. The objective of this research was to study the distribution and abundance of Neochetina spp.
Sapdi Sapdi   +4 more
doaj   +1 more source

A Comparison of Regression Tree Approaches to Modelling the Efficacy of Water Hyacinth Biocontrol Using Multitemporal Spectral Datasets

open access: yesJournal of Spectroscopy, Volume 2018, Issue 1, 2018., 2018
Water hyacinth (Eichhornia crassipes) is an exotic plant species that is effectively controlled by Neochetina spp. weevils. This study is aimed at determining if spectroscopic data may be utilized to predict insect‐induced stress on water hyacinth plants.
Na’eem Hoosen Agjee   +4 more
wiley   +1 more source

The Impact of Simulated Spectral Noise on Random Forest and Oblique Random Forest Classification Performance

open access: yesJournal of Spectroscopy, Volume 2018, Issue 1, 2018., 2018
Hyperspectral datasets contain spectral noise, the presence of which adversely affects the classifier performance to generalize accurately. Despite machine learning algorithms being regarded as robust classifiers that generalize well under unfavourable noisy conditions, the extent of this is poorly understood. This study aimed to evaluate the influence
Na’eem Hoosen Agjee   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy