Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode
Field trials were conducted to assess the effectiveness of a parasitic nematode, the DD136 strain of Neoaplectana carpocapsae Weiser in controlling Heliothis zea (Boddie) on naturally infested sweetcorn. Nematode suspensions at concentrations of 0, 4 × 103, 4 × 104, 4 × 103 (applied twice) and 4...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
1986
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| Online Access: | http://psasir.upm.edu.my/id/eprint/39981/ http://psasir.upm.edu.my/id/eprint/39981/1/Field%20control%20of%20heliothis%20zea%20%28boddie%29%20%28lepidoptera%20noctuidae%29%20using%20a%20parasitic%20nematode.pdf |
| _version_ | 1848849295954935808 |
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| author | Bong, Joseph Choon Fah |
| author_facet | Bong, Joseph Choon Fah |
| author_sort | Bong, Joseph Choon Fah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Field trials were conducted to assess the effectiveness of a parasitic nematode, the DD136 strain of Neoaplectana carpocapsae Weiser in controlling Heliothis zea (Boddie) on naturally infested sweetcorn.
Nematode suspensions at concentrations of 0, 4 × 103, 4 × 104, 4 × 103 (applied twice) and 4 × 104 (applied twice), nematodes/ml respectively, were sprayed on the ears at early silking stage.
Treatments with 4 × 104 nematodes/ml sprayed twice at 3 days interval gave significantly better control (55%) than the rest. The mean number of surviving H. zea larvae was also significantly reduced with increasing concentrations of nematodes. Economic damage was not prevented but damage to treated ears was significantly lower than that of the untreated plots. |
| first_indexed | 2025-11-15T09:48:08Z |
| format | Article |
| id | upm-39981 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:48:08Z |
| publishDate | 1986 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-399812015-09-29T03:35:38Z http://psasir.upm.edu.my/id/eprint/39981/ Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode Bong, Joseph Choon Fah Field trials were conducted to assess the effectiveness of a parasitic nematode, the DD136 strain of Neoaplectana carpocapsae Weiser in controlling Heliothis zea (Boddie) on naturally infested sweetcorn. Nematode suspensions at concentrations of 0, 4 × 103, 4 × 104, 4 × 103 (applied twice) and 4 × 104 (applied twice), nematodes/ml respectively, were sprayed on the ears at early silking stage. Treatments with 4 × 104 nematodes/ml sprayed twice at 3 days interval gave significantly better control (55%) than the rest. The mean number of surviving H. zea larvae was also significantly reduced with increasing concentrations of nematodes. Economic damage was not prevented but damage to treated ears was significantly lower than that of the untreated plots. Cambridge University Press 1986 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/39981/1/Field%20control%20of%20heliothis%20zea%20%28boddie%29%20%28lepidoptera%20noctuidae%29%20using%20a%20parasitic%20nematode.pdf Bong, Joseph Choon Fah (1986) Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode. International Journal of Tropical Insect Science, 7 (1). pp. 23-25. ISSN 1742-7584; ESSN: 1742-7592 |
| spellingShingle | Bong, Joseph Choon Fah Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode |
| title | Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode |
| title_full | Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode |
| title_fullStr | Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode |
| title_full_unstemmed | Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode |
| title_short | Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode |
| title_sort | field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode |
| url | http://psasir.upm.edu.my/id/eprint/39981/ http://psasir.upm.edu.my/id/eprint/39981/1/Field%20control%20of%20heliothis%20zea%20%28boddie%29%20%28lepidoptera%20noctuidae%29%20using%20a%20parasitic%20nematode.pdf |