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The effect of two biological control agents, the weevil Neochetina eichhorniae and the mirid Eccritotarsus catarinensis on water hyacinth, Eichhornia crassipes, grown in culture with water lettuce, Pistia stratiotes

Autor: Martin Hill, Sam Korie, P. Neuenschwander, Marcus J. Byrne, O. Ajuonu

Publikováno v: BioControl. 54:155-162

We assessed the effect of two biological control agents, the mirid Eccritotarsus catarinensis (Carvalho) and the weevil Neochetina eichhorniae (Warner), singly or in combination, on the competitive ability of their host plant, water hyacinth, Eichhor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::127587861fd480bd94794d6aa162492f
https://doi.org/10.1007/s10526-008-9185-6

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Survival of the mirid Eccritotarsus catarinensis as influenced by Neochetina eichhorniae and Neochetina bruchi feeding scars on leaves of water hyacinth Eichhornia crassipes

Autor: Martin Hill, Marcus J. Byrne, O. Ajuonu, Sam Korie, P. Neuenschwander

Publikováno v: BioControl. 52:193-205

Water hyacinth (Eichhornia crassipes (Mart.) Solms-Laub.) remains a problem waterweed worldwide, for which biological control offers a sustainable solution. Under laboratory conditions, we investigated the interaction between two established weevil s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dcb9287e8433f7455df289c3776d0360
https://doi.org/10.1007/s10526-006-9029-1

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Economic impact of biological control of water hyacinth in Southern Benin

Autor: R. Djessou, O. Ajuonu, S. Attignon, P. Neuenschwander, H. De Groote

Publikováno v: Ecological Economics. 45:105-117

A biological control program of water hyacinth was undertaken in Southern Benin between 1991 and 1993. It consisted of the release of three natural enemies, two weevil species and one moth, that feed exclusively on water hyacinth. In 1999, a survey o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6891301182288d415b0738adfb5790d2
https://doi.org/10.1016/s0921-8009(03)00006-5

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Impact of Two Accidentally Introduced Encarsia Species (Hymenoptera: Aphelinidae) and Other Biotic and Abiotic Factors on the Spiralling Whitefly Aleurodicus dispersus (Russell) (Homoptera: Aleyrodidae), in Benin, West Africa

Autor: P. Neuenschwander, O. Ajuonu, Y. A. D'almeida, J. A. Lys

Publikováno v: Biocontrol Science and Technology. 8:163-173

In early 1993, the spiralling whitefly, Aleurodicus dispersus (Russell), was observed in Benin for the first time, inflicting damage to ornamental and shade trees and cassava. The parasitoids Encarsia ?haitiensis Dozier and E. guadeloupae Viggiani we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::106aba39d6293b09355e18060abd821b
https://doi.org/10.1080/09583159830522

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Measuring host finding capacity and arrestment of natural enemies of the cassava mealybug, Phenacoccus manihoti, in the field

Autor: P. Neuenschwander, O. Ajuonu

Publikováno v: Entomologia Experimentalis et Applicata. 77:47-55

In uninfested fields, 80 cassava tips were artificially infested with 0, 1, 2, 4, 8, 16, 32, or 64 third instars, and 20 or 100 eggs of cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hom., Pseudococcidae). Another 80 uninfested tips served as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1b7c71405a57fd6d3bfdb92b38dc4143
https://doi.org/10.1111/j.1570-7458.1995.tb01984.x

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Importation, releases, and establishment ofNeochetina spp. (Col.: Curculionidae) for the biological control of water hyacinth,Ecchhornia crassipes (Lil.: Pontederiaceae), in Benin, West Africa

Autor: V. Schade, Alphonse Adite, C. J. Lomer, P. Neuenschwander, R. van Thielen, O. Ajuonu

Publikováno v: Entomophaga. 39:179-188

Water hyacinth,Eichhornia crassipes (Martius) Solms-Laubach (Pontederiaceae) was first reported in Benin in 1977 and about 10 years later became the major floating water weed in the south east, obstructing boat traffic and fisheries. Water hyacinth m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::058276c284e7cd8e357a0558c65dd4ef
https://doi.org/10.1007/bf02372356

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Biological control of the cassava mealybug, Phenacoccus manihoti (Hom., Pseudococcidae) by Epidinocarsis lopezi (Hym., Encyrtidae) in West Africa, as influenced by climate and soil

Autor: A. Gado, P. Neuenschwander, Aimé H. Bokonon-Ganta, N. Echendu, W.N.O. Hammond, R. Allomasso, I. Okon, O. Ajuonu

Publikováno v: Agriculture, Ecosystems & Environment. 32:39-55

Population data concerning the cassava mealybug (CM) Phenacoccus manihoti Matile-Ferrero, the introduced parasitoid Epidinocarsis lopezi (De Santis), and indigenous antagonists were collected, together with ecological and plant growth variables, duri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5dea22214b3c781902a2151333db3c8
https://doi.org/10.1016/0167-8809(90)90122-t

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