The aquatic nuisance species task force and invasive. Jun 03, 2015 biological control is the use of living organism to suppress or control another living organisms, and it is costeffective and environmentfriendly. A simulation of waterhyacinth plant growth and neochetina weevil development and interaction. This lack of consensus may be attributed to the subtle impacts of these agents on plant health and vitality or. Chapter 4 waterhyacinth biological control of invasive.
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 smooth water hyacinth weevils neochetina. Some aspects of the evapotranspiration of eichhornia crassipes and some other aquatic weeds. Successful biological control of water hyacinth eichhornia. We estimate a quadratic trend regression for each section. Pdf waterhyacinth weevils neochetina eichhorniaeandn. It is also the source of the blue nile, which contributes up to 60% of the niles water. Increasing trades, travels and transport of goods globalization. Users manual article pdf available december 1992 with 45 reads. 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 smooth water hyacinth weevils.
Curculionidae cilliers, 1991, which together with n. The effects and implications of both chemical and biological. Biological control is the use of living organism to suppress or control another living organisms, and it is costeffective and environmentfriendly. Curculionidae, and the waterhyacinth moth niphograpta. Arthropod communities inhabiting feral waterhyacinth rafts were surveyed monthly in south carolinas coastal plain from march 2005 through february 2006. For higher classification and authors of scientific names of the natural enemies, see julien and griffiths 1998, cuda et al. Causes that aggravate the problem of bioinvasions in the last years.
Although successful control has been reported, questions regarding the efficacy of these insects remain unresolved. Mci social sector working paper series n 022009 an. Neither insect nor manual leaf damage influenced wholeplant herbivore. Biological invasions are a major driver of global environmental change in the anthropocene. Observations on the effect of the weevils neochetina eichhorniae. Pdf between 1991 and 1993, two weevils species, neochetina eichhorniae warner and n. The usaid resilim program supports the limpopo watercourse commission limcom in helping the people and ecosys tems of the limpopo river basin to adapt to climate change through effective transboundary water management. The biology and impact of neochetina weevils on water.
Megamelus scutellaris epipagis niphograpta or sameodes albiguttalis neochetina bruchi and neochetina eichhorniae orthogalumna terebrantis united states, africa, and mexico hakea sericea aphanasium australe carposina autologa cydmaea binotata dicomada rufa erytenna consputa south asia hypericum perforatum chrysolina quadrigemina. Break away chunks, becoming small rafts and floating away in the c myanmar, shan state, region inle lake, samkar region, swimming gardens, water hyacinths, eichhornia, blossoms, blooming pickerelweed plant with wasp, pontederia. May 15, 2018 may 1 5 2018 united states department of commerce national oceanic and atmospheric administration national marine fisheries service west coast region 650 capitol mall, suite 5100 sacramento, california 958144700 refer to nmfs no. Discovered in the native range of water hyacinth and characterized in the 1960s and early 1970s by the usda ars. Water hyacinth department of agriculture and fisheries. Special attention was given to the chevroned waterhyacinth weevil neochetina bruchi hustache, the mottled waterhyacinth weevil n. Shown to have rapid life cycle, high fecundity, and high host specificity to water hyacinth deloach 1976, 1982. Water hyacinth infesting a lagoon village in benin d. Adaptability of two weevils neochetina bruchi and neochetina. Eichhorniae was deemed unlikely by plant protection research institute ppri to achieve the desired level of control on its own, and thus three additional biocontrol. Therefore water hyacinth weevils neochetina eichhorniae warner and n. The shiny green leaves are circular or broadly elliptical and approximately 6 wide. Ipm and biological control of weeds january 1990 september 1992 title.
Neochetina eichhorniae, neochetina bruchi, sameodes albiguttalis aquatic insectherbicide v p insectpathogenherbicide ps classical method currently, there are no registered bioherbicides, but several candidates have been identified. Its first biocontrol agent, neochetina eichhorniae warner, was released in 1974 henderson, 2001. Established arthropod biological control agents of invasive weeds in florida. Kumbang neochetina eichhorniae sebagai agens pengendali. Life cycle and biology of neochetina bruchi1, a weevil attacking. Impacts of a sublethal dose of glyphosate on water hyacinth.
The female weevils begin to lay eggs within a few days after emerging from the pupa and most are deposited within the first week. Dec 16, 2019 the species name crassipes is derived from latin, meaning thickfooted of thickstalked. Further details may be available for individual references in the distribution table details section which can. Ethiopias lake tana is losing the fight to water hyacinth. B, the other water hyacinth weevil, neochetina eichhorniae, which did not establish in the delta but may be present in the san joaquin river watershed. Fwc invasive plant management section 202014 rfp fleppc cat 1 and 2 plants ipm for waterhyacinth 2,4d biocontrol insects neochetina sp. The exotic water hyacinth weevils neochetina eichhorniae warner are reported to be most. Curculionidae against water hyacinth stage of supply. Curculionidae are regarded as the most successful biocontrol agents against water hyacinth julien et al. Life cycles of neochetina bruchi warner and neochetina. Draawp progress reportbiological control of aquatic. May 1 5 2018 united states department of commerce national oceanic and atmospheric administration national marine fisheries service west coast region 650 capitol mall, suite 5100 sacramento, california 958144700 refer to nmfs no.
Effect of water turbidity on establishment and performance of neochetina eichhorniae warner coleoptera. Due to their overlapping niches, interspecific interactions among the biocontrol agents is high and. Neochetina eichhorniae deposits eggs singly, whereas n. The distribution in this summary table is based on all the information available. Nepal is a part of the worlds biodiversity hotspot and ranks the 49th in the world for biodiversity. Alternative farming systems information center national. Ignorance about the effects of these introductions. Alternative farming systems information center national agricultural library. Revised pricelist for different hosts and natural enemies at. Floridas established arthropod weed biological control. An exotic aquatic plant eichhornia crassipes description water hyacinth, an aggressive exotic aquatic plant, is native to brazil but now occurs globally. Specialist weevils neochetina eichhorniae hustache coleoptera. Variation in cool temperature performance between populations of neochetina eichhorniae coleoptera. The two weevil species neochetina eichhorniae and neochetina bruchi, and the two moth species niphograpta albiguttalis previously known as sameodes albiguttalis and xubida.
It is best known for the water hyacinth eichhornia crassipeswhich is an invasive species in many waterways. Neochetina eichhorniae is mottled browngrey, while n. A moth it is hoped th infestations unfortunate the insects so has to be care eventually will ensure t. Alteration suffered by ecosystem along these years. Does the water hyacinth weevil neochetina bruchi respond. You also get unlimited file sizes as well as the ability to upload and convert several files to pdf at the same time. Several biocontrol agents are being introduced for the control of invasive species like the aquatic macrophyte, waterhyacinth, eichhornia crassipes, in the hope of improving the ecofriendly natural control mechanism. Neochetina eichhorniae, a biological control agent for water hyacinth cabi bioscience.
Floridas established arthropod weed biological control agents and their targets 4 table 1. Pdf impact of the weevils neochetina eichhorniae and n. Current status of research on plant insect pests and. Four insect species have been introduced from south america and released by csiro since 1975. The aquatic nuisance species task force and invasive aquatic. Introduksi kumbang curinus coreolius dari hawai dilakukan untuk mengendalikan hama kutu loncat lamtoro heteropsylla sp. When several references are cited, they may give conflicting information on the status. Physical control involves both manual and mechanical removal, a tedious. Invasive alien species ias are those that have been moved by humans accidentally andor purposefully into new environments, where they survive, naturalise and spread over large areas, often inducing negative socialecological impacts see richardson et al. Current status of research on plant insect pests and biological control sunil aryal, ph. Mci social sector working paper series n 022009 an overview.
Dari tahun 1950 sampai 1970an pengendalian hayati pamornya. Eggs of both species of neochetina are deposited directly in the plant tissue. A glimpse into the compatibilities and conflicts between. Maclean alternative farming systems information center national agricultural library publication date. Ans task force history nonindigenous aquatic nuisance prevention and control act of 1990 national invasive species act of 1996 interagency task force ballast water. The present and future contributions of biological control to. The species name crassipes is derived from latin, meaning thickfooted of thickstalked. Adults 100100 adults rg 200100 adults rc orthogalumna terebrantis wallwork acari. Does the water hyacinth weevil neochetina bruchi respond to. Apr 04, 2019 megamelus scutellaris epipagis niphograpta or sameodes albiguttalis neochetina bruchi and neochetina eichhorniae orthogalumna terebrantis united states, africa, and mexico hakea sericea aphanasium australe carposina autologa cydmaea binotata dicomada rufa erytenna consputa south asia hypericum perforatum chrysolina quadrigemina.
Senior scientist s4chief ajay shree ratna bajracharya senior scientist s4 entomology division nepal agricultural research council. Successful biological control of water hyacinth eichhornia crassipes in papua new guinea by the weevils neochetina bruchi and neochetina eichhorniae coleoptera. Pdf effect of water turbidity on establishment and performance of. Life cycles of neochetina bruchi warner and neochetina eichhorniae hustache as potential biological control agents in the semi arid zone of nigeria.
Sep 04, 2017 lake tana is the largest lake in ethiopia. Eichhornia crassipes and two weevil species neochetina eichhorniae and neochetina bruchi. Wcr20178268 united states department of agricultureagriculture research service. The biology and impact of neochetina weevils on water hyacinth, eichhornia crassipes in lake victoria basin, kenya. Females of both species produce between 350 and 400 eggs. Neochetina eichhorniae warner and neochetina bruchi hustache on the growth of water hyacinth. Draawp progress reportbiological control of aquatic weeds.
Osumu, 2001, reported that this method during pilot trials was found to be ineffective because 4 makhanu 1997 as reported in osumo 2001. Neochetina bruchi prefers leaves with inflated petioles, especially those at the periphery of the plant deloach and cordo, 1976a, whereas eggs of n. Curculionidae weevils, neochetina eichhorniae and n. Assessing biological invasions in protected areas after 30. Interspecific interactions play an important role in ecosystem functioning. Neochetina eichhorniae warner neochetina bruchi hustache coleoptera. With a free trial of our online pdf converter, you can convert files to and from pdf for free, or sign up for one of our memberships for limitless access to our file converters full suite of tools. Curculionidae and implications for the biological control of water am reddy, pd pratt, jv hopper, x cibilsstewart, gc walsh, f mc kay. This shape is explained by the circumstances that in. The scatter plots show an inverted ushape for hyacinth extension. This manual includes background information and general instructions for installing and using the insect software package. Biological control of waterhyacinth eichhornia crassipes mart. Herbivory alters competitive interactions between two.
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