No-Till Culture of Sweet Corn in Maryland With Reference to Insect Pests1

Harrison, Floyd P.; Bean, Richard; Qawiyy, O. J.

doi:10.1093/jee/73.3.363

Cited by 18 publications

(11 citation statements)

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“…Musick () reported that six larvae were enough to destroy one plant, while Harrison et al. () noted that an infestation level of one larva per plant was sufficient to cause a significant yield impact.…”

Section: Methodsmentioning

confidence: 99%

“…Although the devastating effects of armyworm larvae have been commonly documented, the impact on maize yields specifically is not clear due to the erratic nature of outbreaks (Douglas et al 1981, Hill and Atkins 1982, Buntin 1986). Musick (1973) reported that six larvae were enough to destroy one plant, while Harrison et al (1980) noted that an infestation level of one larva per plant was sufficient to cause a significant yield impact.…”

Section: True Armywormmentioning

confidence: 99%

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Managing maize under pest species competition: Is Bt (Bacillus thuringiensis) maize the solution?

et al. 2016

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Abstract. Transgenic crops that contain Cry genes from Bt (Bacillus thuringiensis) have been adopted by farmers over the last 17 yr. Unlike traditional broad-spectrum chemical insecticides, Bt's toxicity spectrum is relatively narrow and selective, which may indirectly benefit secondary insects that may become important pests. The economic damage caused by the rise of secondary pests could offset some or all of the benefits associated with the use of Bt varieties. We develop a bioeconomic model to analyze the interactions between primary and secondary insect populations and the impact of different management options on insecticide use and economic impact over time. Results indicate that some of the benefits associated with the adoption of genetically engineered insect resistant crops may be eroded when taking into account ecological dynamics. It is suggested that secondary pests could easily become key insect pests requiring additional measures, such as insecticide applications or stacked traits, to keep their populations under the economic threshold.

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Section: Methodsmentioning

confidence: 99%

Section: True Armywormmentioning

confidence: 99%

Managing maize under pest species competition: Is Bt (Bacillus thuringiensis) maize the solution?

et al. 2016

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“…Furthermore, he sug gests that damaging AW larval populations are more common in areas where plants have been damaged by wind, heavy rainfall, or, especially, hail. Harrison et al (1980) reported higher AW larval populations in no-till sweet corn than in conventionally-tilled sweet corn. Musick (1973) pro posed that prevalence of AW larvae in no-till situations is related to in creased oviposition by AW moths in these "weedy" environments.…”

Section: Larval-host Relationshipsmentioning

confidence: 93%

“…Musick (1973) reports that a population of six or more AW larvae per plant can annihilate corn plants in an entire field almost overnight. Harrison et al (1980) suggest an infestation level of one larva per meter of row in sweet corn as adequate to cause a signifi cant yield loss. Neither of the two previously mentioned authors show in festation or statistical data to support their speculations.…”

Section: Larval-host Relationshipsmentioning

confidence: 99%

Estimating economic thresholds of the armyworm, Pseudaletia unipuncta (Haworth) on field corn in Iowa

Mülder

Phillip²

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“…Therapeutic management of M. unipuncta is possible. Farmers can scout fields for signs of larvae and larvae feeding and apply foliar insecticides as needed (Harrison et al 1980). Agrotis ipsilon also does not overwinter in the Corn Belt and migrates northward from Gulf Coast states during early spring (Hendrix III and Showers 1992).…”

Section: Figuresmentioning

confidence: 99%

Effects of diversity on beneficial and pest arthropods

Dunbar¹

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for their constant encouragement. This work could not have been completed without the support of my fellow lab members, particularly Eric Clifton, Ryan Keweshan and Melissa Rudeen. Thank you to all the undergraduate employees I have had the privilege to work with-I learned so much from each of you. To my parents, Pete Dunbar and Nancy Wilson, and my sister, Kate Dunbar-thank you for pushing me yet only caring about my wellbeing. Major support for this dissertation has been provided by Taco Bell, caffeine, Erika Saalau-Rojas and contributions to your local student from community members like you. Thank you.

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No-Till Culture of Sweet Corn in Maryland With Reference to Insect Pests1

Cited by 18 publications

References 0 publications

Managing maize under pest species competition: Is Bt (Bacillus thuringiensis) maize the solution?

Managing maize under pest species competition: Is Bt (Bacillus thuringiensis) maize the solution?

Estimating economic thresholds of the armyworm, Pseudaletia unipuncta (Haworth) on field corn in Iowa

Effects of diversity on beneficial and pest arthropods

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