Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae)
Chemical exclusion of predators with permethrin was used to test the effectiveness of the phytoseiid predator Amblyseius limonicus Garman and McGregor and a complex of minor predators in the biological control of tetranychid (Mononychellus spp., Tetranychus spp., and Oligonychus peruvianus McGregor)...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1989
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/42786 |
| _version_ | 1855517299671302144 |
|---|---|
| author | Braun, Ann R. Bellotti, Anthony C. Guerrero, J.M. Wilson, LT |
| author_browse | Bellotti, Anthony C. Braun, Ann R. Guerrero, J.M. Wilson, LT |
| author_facet | Braun, Ann R. Bellotti, Anthony C. Guerrero, J.M. Wilson, LT |
| author_sort | Braun, Ann R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Chemical exclusion of predators with permethrin was used to test the effectiveness of the phytoseiid predator Amblyseius limonicus Garman and McGregor and a complex of minor predators in the biological control of tetranychid (Mononychellus spp., Tetranychus spp., and Oligonychus peruvianus McGregor) pests of cassava, Manihot esculenta Crantz. Mononychellus spp. and Tetranychus spp. populations were significantly higher and predator populations significantly lower in permethrin-treated plots than in control plots. Numbers of O. peruvianus were not affected by permethrin. Yield of fresh commercial roots and of dry matter was significantly higher in plots with predators than in plots where permethrin was applied every 2 wk for predator exclusion. Yields of neither fresh nor dry matter in control plots were significantly different from yields in plots that had been protected with acaricide, suggesting that predation kept spider mite populations below economically damaging levels.
Publication date: 01 August 1989 |
| format | Journal Article |
| id | CGSpace42786 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1989 |
| publishDateRange | 1989 |
| publishDateSort | 1989 |
| record_format | dspace |
| spelling | CGSpace427862021-10-08T18:19:50Z Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae) Braun, Ann R. Bellotti, Anthony C. Guerrero, J.M. Wilson, LT manihot esculenta mononychellus mononychellus progresivus tetranychus tetranychus urticae oligonychus peruvianus predators and parasites population dynamics acaricides root productivity dry matter biological control composition diseases and pathogens injurious mites mite control mycoses noxious animals pest control pests productivity starch crops depredadores y parasitos dinamica de poblacion acaricidas productividad de raices materia seca Chemical exclusion of predators with permethrin was used to test the effectiveness of the phytoseiid predator Amblyseius limonicus Garman and McGregor and a complex of minor predators in the biological control of tetranychid (Mononychellus spp., Tetranychus spp., and Oligonychus peruvianus McGregor) pests of cassava, Manihot esculenta Crantz. Mononychellus spp. and Tetranychus spp. populations were significantly higher and predator populations significantly lower in permethrin-treated plots than in control plots. Numbers of O. peruvianus were not affected by permethrin. Yield of fresh commercial roots and of dry matter was significantly higher in plots with predators than in plots where permethrin was applied every 2 wk for predator exclusion. Yields of neither fresh nor dry matter in control plots were significantly different from yields in plots that had been protected with acaricide, suggesting that predation kept spider mite populations below economically damaging levels. Publication date: 01 August 1989 1989 2014-09-24T07:58:34Z 2014-09-24T07:58:34Z Journal Article https://hdl.handle.net/10568/42786 en Open Access |
| spellingShingle | manihot esculenta mononychellus mononychellus progresivus tetranychus tetranychus urticae oligonychus peruvianus predators and parasites population dynamics acaricides root productivity dry matter biological control composition diseases and pathogens injurious mites mite control mycoses noxious animals pest control pests productivity starch crops depredadores y parasitos dinamica de poblacion acaricidas productividad de raices materia seca Braun, Ann R. Bellotti, Anthony C. Guerrero, J.M. Wilson, LT Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae) |
| title | Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae) |
| title_full | Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae) |
| title_fullStr | Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae) |
| title_full_unstemmed | Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae) |
| title_short | Effect of predator exclusion on cassava infested with tetranychid mites (Acari: Tetranychidae) |
| title_sort | effect of predator exclusion on cassava infested with tetranychid mites acari tetranychidae |
| topic | manihot esculenta mononychellus mononychellus progresivus tetranychus tetranychus urticae oligonychus peruvianus predators and parasites population dynamics acaricides root productivity dry matter biological control composition diseases and pathogens injurious mites mite control mycoses noxious animals pest control pests productivity starch crops depredadores y parasitos dinamica de poblacion acaricidas productividad de raices materia seca |
| url | https://hdl.handle.net/10568/42786 |
| work_keys_str_mv | AT braunannr effectofpredatorexclusiononcassavainfestedwithtetranychidmitesacaritetranychidae AT bellottianthonyc effectofpredatorexclusiononcassavainfestedwithtetranychidmitesacaritetranychidae AT guerrerojm effectofpredatorexclusiononcassavainfestedwithtetranychidmitesacaritetranychidae AT wilsonlt effectofpredatorexclusiononcassavainfestedwithtetranychidmitesacaritetranychidae |