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Título: | Insect damage to sweet corn hybrids in the south Atlantic European coast |
Autor: | Malvar Pintos, Rosa Ana CSIC ORCID ; Revilla Temiño, Pedro CSIC ORCID ; Velasco Pazos, Pablo CSIC ORCID; Cartea González, María Elena CSIC ORCID; Ordás Pérez, Amando CSIC ORCID | Palabras clave: | Maize Zea mays Sesamia nonagrioides Ostrinia nubilalis Maturity Planting date |
Fecha de publicación: | 2002 | Editor: | American Society for Horticultural Science | Citación: | Journal of the American Society for Horticultural Science 127 (4): 693-696 (2002) | Resumen: | The pink stem borer (PSB) (Sesamia nonagrioides Lefebvre) and the European corn borer (ECB) (Ostrinia nubilalis Hübner) are the major insect pests of corn (Zea mays L.) in Mediterranean countries, although larvae of other insects can also cause damage. The objective of this research was to evaluate the effect of sweet corn hybrids, planting time, and environment on damage by various insects. Data were recorded on the number of larvae of each of the aforementioned pests and damage produced in the ear 20 days after pollination and in the ear and stem when plants were dry. PSB was the most abundant pest, followed by ECB. Other insects, such as Mythimna unipuncta (Haworth) and Helicoverpa armigera (Hübner) were rarely found in sweet corn plants. ECB was constant over time, PSB had larger seasonal variation, and M. unipuncta and H. armigera were highly variable over time. There were significant differences among planting dates and growing cycles for damage traits in each environment. Interactions among hybrids, planting dates, and environments were significant. Dry ears were damaged more than fresh ears and stems had more larvae than ears. The economic value of the crop was seriously affected because most fresh ears had some damage, and seed production would be severely affected by PSB. | Versión del editor: | http://journal.ashspublications.org/content/127/4/693 | URI: | http://hdl.handle.net/10261/102488 | ISSN: | 0003-1062 |
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