Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations
Epidinocarsis lopezi an exotic parasitoid to Africa, was first released to control the cassava mealybug (CM), Phenacoccus manihoti, at IITA (Ibadan) in November 1981, and a year later at Abeokuta, both in southwestern Nigeria. Population dynamics study of CM and its natural enemies was conducted for...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
1987
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/108742 |
| _version_ | 1855536293474205696 |
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| author | Hammond, W.N.O. Neuenschwander, Peter Herren, H.R. |
| author_browse | Hammond, W.N.O. Herren, H.R. Neuenschwander, Peter |
| author_facet | Hammond, W.N.O. Neuenschwander, Peter Herren, H.R. |
| author_sort | Hammond, W.N.O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Epidinocarsis lopezi an exotic parasitoid to Africa, was first released to control the cassava mealybug (CM), Phenacoccus manihoti, at IITA (Ibadan) in November 1981, and a year later at Abeokuta, both in southwestern Nigeria. Population dynamics study of CM and its natural enemies was conducted for 4 years. CM population peaks usually occurred during the second half of the dry season (January-April). E. lopezi was the only natural enemy that was found during the whole year and in high densities. Parasitization rates of E. lopezi alternated with CM densities, thus suggesting a regulatory effect on CM populations by this parasitoid. CM populations were drastically reduced in release fields when compared with control fields. Subsequently CM populations have been maintained below injury levels for 4 years. E. lopezi is considered an efficient parasitoid of the CM. |
| format | Journal Article |
| id | CGSpace108742 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1987 |
| publishDateRange | 1987 |
| publishDateSort | 1987 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1087422024-05-01T08:19:05Z Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations Hammond, W.N.O. Neuenschwander, Peter Herren, H.R. epidinocarsis lopezi phenacoccus manihoti biological control nigeria pseudococcidae mealybugs Epidinocarsis lopezi an exotic parasitoid to Africa, was first released to control the cassava mealybug (CM), Phenacoccus manihoti, at IITA (Ibadan) in November 1981, and a year later at Abeokuta, both in southwestern Nigeria. Population dynamics study of CM and its natural enemies was conducted for 4 years. CM population peaks usually occurred during the second half of the dry season (January-April). E. lopezi was the only natural enemy that was found during the whole year and in high densities. Parasitization rates of E. lopezi alternated with CM densities, thus suggesting a regulatory effect on CM populations by this parasitoid. CM populations were drastically reduced in release fields when compared with control fields. Subsequently CM populations have been maintained below injury levels for 4 years. E. lopezi is considered an efficient parasitoid of the CM. 1987-12 2020-07-13T13:06:18Z 2020-07-13T13:06:18Z Journal Article https://hdl.handle.net/10568/108742 en Limited Access Springer Hammond, W.N.O., Neuenschwander, P. & Herren, H.R. (1987). Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations. International Journal of Tropical Insect Science, 8(4-6), 887-891. |
| spellingShingle | epidinocarsis lopezi phenacoccus manihoti biological control nigeria pseudococcidae mealybugs Hammond, W.N.O. Neuenschwander, Peter Herren, H.R. Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations |
| title | Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations |
| title_full | Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations |
| title_fullStr | Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations |
| title_full_unstemmed | Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations |
| title_short | Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations |
| title_sort | impact of the exotic parasitoid epidinocarsis lopezi on cassava mealybug phenacoccus manihoti populations |
| topic | epidinocarsis lopezi phenacoccus manihoti biological control nigeria pseudococcidae mealybugs |
| url | https://hdl.handle.net/10568/108742 |
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