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Field control of heliothis zea (boddie) (lepidoptera: noctuidae) using a parasitic nematode


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


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.

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Additional Metadata

Item Type: Article
Divisions: Universiti Pertanian Malaysia
Faculty of Agriculture and Food Sciences
Publisher: Cambridge University Press
Keywords: Control; Heliothis zea (Boddie); Corn earworm; Sweetcorn; DD136; Neoaplectana carpocapsae Weiser; Nematode; Economic damage
Depositing User: Mohd Hafiz Che Mahasan
Date Deposited: 29 Sep 2015 03:35
Last Modified: 29 Sep 2015 03:35
URI: http://psasir.upm.edu.my/id/eprint/39981
Statistic Details: View Download Statistic

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