The Sunflower Moth and its Impact on Cultivated Sunflowers in Eastern South Dakota

Cultivated sunflowers (Helianthus annuus L.) are an increasingly important cash crop in the agricultural economy of South Dakota. Sunflower hectarage increased in South Dakota from an estimated 59,711 ha. In 1975 to approximately 250,900 ha. In 1982 (Anonymous, 1982). Most of the sunflowers are grown in the eastern half of South Dakota, and a large percentage is growing the northeastern quarter of the state (Figure 1). The expanding hectarage has necessitated an increase in insecticide application to control the several insect pests associated with them. It is estimated that 181,900 ha. Were treated with insecticides in 1982 (D. Walgenbach, South Dakota State University, Personal Communication). The objectives of this study were (1) to investigate the potential for using artificial infestations of sunflowers, (2) to collect and identify entomophagous arthropods associated with sunflowers, (3) to investigate the seasonal abundance of the most common predators, and (4) to study the potential predator-prey relationships between the most common predators and the sunflower moth larvae

Management of insect and mite pests in corn

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Management of insect and mite pests in sunflowers

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Management of insect and mite pests in corn

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Management of insect and mite pests in soybean

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Management of insect and mite pests in sorghum

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Management of insect and mite pests in corn

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Plant disease and insect advisory, vol. 01, no. 10

This publication, formally known as the Plant Disease and Insect Advisory newsletter by the Oklahoma Cooperative Extension Service, underwent a title transition. It is now recognized by the title Pest e-Alerts.Entomology and Plant Patholog

Plant disease and insect advisory, vol. 01, no. 16

This publication, formally known as the Plant Disease and Insect Advisory newsletter by the Oklahoma Cooperative Extension Service, underwent a title transition. It is now recognized by the title Pest e-Alerts.Entomology and Plant Patholog

Management of insect and mite pests in sorghum

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311