Last edited by Gardakus
Tuesday, May 12, 2020 | History

3 edition of Biological Control of Salvinia Molesta in Sri Lanka found in the catalog.

Biological Control of Salvinia Molesta in Sri Lanka

J. A. Doeleman

Biological Control of Salvinia Molesta in Sri Lanka

An Assessment of Costs and Benefits (Aciar Technical Reports)

by J. A. Doeleman

  • 334 Want to read
  • 32 Currently reading

Published by Hyperion Books .
Written in English

    Subjects:
  • Agriculture & Farming,
  • Sri Lanka,
  • Agriculture - General,
  • Technology & Industrial Arts

  • The Physical Object
    FormatPaperback
    Number of Pages14
    ID Numbers
    Open LibraryOL11580497M
    ISBN 100949511978
    ISBN 109780949511973
    OCLC/WorldCa21221558

    ISBN: OCLC Number: Description: xi, 58 pages, [8] pages of color plates: illustrations, maps ; 25 cm. Contents: 1. Biological Control of Salvinia Distribution A native of Southern Brazil and Paraguay, salvinia (Salvinia molesta) is thought to have been introduced to Australia by the aquarium trade. It is now found in the NT, Western Australia, New South Wales, South Australia and Queensland. It .

    "There have been many notable successes in biological weed control not least the example of the weevil Cyrtobagous salviniae against Salvinia weed in Sri Lanka. The plant was introduced into the country during the second world war to prevent the enemy aircraft from identifying waterways and it did the job so well that almost all waterbodies in. Agriculture, Ecosystems and Environment, 37 () Elsevier Science Publishers B.V., Amsterdam Biological control of water fern, Salvinia molesta (Salviniaceae), in South Africa C.J. Cilliers Plant Protection Reseatz'h Institute, Private Bag Xi34, Pretoria , South.4fi'ica (Accepted 25 March ) ABSTRACT Cilliers, C.J., I. Biological control of water fern, Sah,inia moh Cited by:

    Classical biological control for exotic invasive weeds in riparian and aquatic habitats - practice and prospects. Abstract The advantages and disadvantages of classical weed biocontrol are discussed and its cost effectiveness is illustrated using data from a control programme against Salvinia molesta in Sri Lanka. Biological Control Home > Classical biocontrol > Environmental weeds Originating in south-eastern Brazil, salvinia (Salvinia molesta) was a serious aquatic weed in Australia, Southeast Asia, the Pacific and south, central and eastern Africa.


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Biological Control of Salvinia Molesta in Sri Lanka by J. A. Doeleman Download PDF EPUB FB2

Biological Control of Salvinia molesta in Sri Lanka: An Assessment of Costs and Benefits. [DOELEMAN, Jacobus A.] on *FREE* shipping on qualifying offers.

Biological Control of Salvinia molesta in Sri Lanka: An Assessment of Costs and : Jacobus A. DOELEMAN. Additional Physical Format: Online version: Doeleman, Jacobus A. Biological control of Salvinia molesta in Sri Lanka.

Canberra: Australian Centre for International Agricultural Research, In the mid s the Australian Centre for International Agricultural Research (ACIAR) committed itself to a program of biological control of the aquatic weed Salvinia molesta in Sri Lanka.

Salvinia in Sri Lanka interferes with irrigation and drainage of rice paddies, it reduces the fish catch in water reservoirs and it also poses a health risk in providing additional breeding opportunities.

Bandara, P.T. (): Management of Salvinia molesta in Sri Lanka. In: Invasive Alien Species in Sri Lanka – Strengthening Capacity to Control Their Introduction. SALVINIA BIOLOGICAL CONTROL FIELD GUIDE 5 Mature (tertiary form) salvinia with sporocarps Paul Sullivan Paul Sullivan A dense mat of salvinia appears like solid ground The salvinia weevil Salvinia weevil (– mm) Lesley Postle Paul Sullivan Paul Sullivan Weevils turn from brown to black in about five days Ecological damage – problems caused.

Doeleman, J.A., Biological Control of Salvinia molesta in Sri Lanka; an assessment of costs and benefits, Australian Centre for International Agricultural Research, Technical Report Summary: Management information on Salvinia molesta.

Introduction. Salvinia molesta D.S. Mitch. (Salviniaceae) is a free-floating aquatic fern originating from South America. In many tropical and subtropical regions outside of its native range, a grows rapidly and is regarded as a major aquatic weed (Cilliers et al., ).Unmanaged infestations of S.

molesta negatively affect water quality, increase evapotranspiration and result in Cited by: 6. Room PH, Fernando IVS, Weed invasions countered by biological control: Salvinia molesta and Eichhornia crassipes in Sri Lanka.

Aquatic Botany, 42(2) Room PM, Gunatilaka GA, Shivanathan P, Fernando IVS, Control of Salvinia molesta in Sri Lanka by Cyrtobagous salviniae. How effectively biological control can be pressed into service is proved by the following examples.

In the late s, when Sri Lanka's flourishing coconut groves were plagued by leaf-miaing hispides, a larval parasite imported from Singapore brought the pest under control.

Salvinia molesta. Keypoints • Salvinia is a major aquatic weed Sri Lanka, South-East Asia, the Philippines, Papua New Guinea, New Zealand, Fiji, Hawaii and mainland United States. Biological control with the salvinia weevil Cyrtobagous salviniae is very effective in warm temperate, tropical File Size: KB.

Salvinia molesta is a restricted invasive plant under the Biosecurity Act It must not be given away, sold, or released into the environment without a permit.

All other Salvinia species are prohibited invasive plants. All sightings of other Salvinia species must be reported to Biosecurity Queensland within 24. Cyrtobagous salviniae from Australia was imported into Sri Lanka in where tests supported earlier findings that the insect is able to breed only on plants of the genus Salvinia.

Field experiments and observations started in late confirmed the importance of N nutrition for C. salviniae population increase and subsequent control of S. by: 6. Salvinia molesta is a free-floating, mat-forming aquatic fern native to Brazil.

In Australia, salvinia is an invasive and widespread weed in freshwater systems. Salvinia is a Weed of National Significance because of its invasiveness and its severe environmental economic and social impacts (see NSW WeedWise for information about salvinia). The information presented in this manual provides a.

As discu ssed elsewhere in this book, Biological control of Salvinia molesta in Sri Lanka. An assessment of cost and. benefits. ACIAR Technical Report. Chapter 4 Invasive alien plants in. Salvinia molesta Reproduction where S. molesta is under biological control and black dots represent where it is not Table Sri Lanka cost analysis of the losses due to S.

molesta infestations in Sri Lanka. Environmental losses cannot be quantified effectively. Low infestations cost aboutCited by: 1. Room, P.M. Falling Apart as a Lifestyle: The rhizome architecture and population growth of Salvinia molesta.

The Journal of Ecology 71(2) Room, P.M. Ecology of a simple plant-herbivore system: biological control of salvinia. Tree 5(3) Rucker, J. Biological Control. A two millimeter black subaquatic beetle, Cyrtobagous salvinae, has proven to be the best biological control agent for use against giant salvinia.

First collected in by Australian researchers (from the native range in southern Brazil), the beetle adults and larvae feed on the leaf buds and young terminal leaves of the.

Sri Lanka is a country with a population of over 21 million. Being an agricultural country, crop yields have a huge impact on the economy, social well-being and the livelihoods of people. Doeleman, J.

Biological Control of Salvinia molesta in Sri Lanka: An Assessment of Costs and Benefits. The Australian Centre for Agricultural Research Technical Report Australian Centre for International Research.

Canberra, Australia. Edwards, D. and P. Thomas. C (p line “by the following examples. In The late s, when Sri Lanka‟s flourishing coconut groves were plagued by leaf-mining hispides, a larval parasite”) E (para 9, line “supported by CIBC, is now trying out an Argentinian weevil for the eradication of water hyacinth, another dangerous weed”).

In the late s, when Sri Lanka’s flourishing coconut groves were plagued by leaf-mining hispides, a larval parasite imported from Singapore brought the pest under control. A natural predator indigenous to India, Neodumetia sangawani, was found useful in controlling the Rhodes grass-scale insect that was devouring forage grass in many parts.Record Number: Publisher: Department of Agriculture Sri Lanka Location of publication: Peradeniya Country of publication: Sri Lanka Language of text: Sinhalese Indexing terms for this abstract: Organism descriptor(s): Cyrtobagous, Cyrtobagous salviniae, ferns, plants, Salvinia, Salvinia auriculata, Salvinia molestaCited by: 4.Biological control of weeds has been practised for over years and Australia has been a leader in this weed management technique.

The classical example of control of prickly pears in Australia by the cactus moth Cactoblastis cactorum, which was imported from the Americas, helped to set the future for biocontrol of weeds in many by: