Sorghum Entomology

Young, W R; Teetes, G. L.

doi:10.1146/annurev.en.22.010177.001205

Cited by 121 publications

(76 citation statements)

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“…Similarly, tolerance has been a major component of resistance to S. graminum in sorghum, Sorghum bicolor (L.) Moench [12,44]. Experiments in sorghum hybrids possessing levels of tolerance, showed that photosynthetic rates of resistant sorghum plants were unaffected by S. graminum feeding for short durations, while susceptible plants had a significant reduction photosynthetic rates [25].…”

Section: Discussionmentioning

confidence: 99%

Categories of Resistance to Greenbug and Yellow Sugarcane Aphid (Hemiptera: Aphididae) in Three Tetraploid Switchgrass Populations

et al. 2014

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Switchgrass, Panicum virgatum L., has been targeted as a bioenergy feedstock. However, little is currently known of the mechanisms of insect resistance in this species. Here, two no-choice studies were performed to determine the categories (antibiosis and tolerance) and relative levels of resistance of three switchgrass populations (Kanlow-lowland ecotype, Summer-upland ecotype, and third generation derivatives between Kanlow×Summer plants, K×S) previously identified with differential levels of resistance to the greenbug, Schizaphis graminum (Rondani), and yellow sugarcane aphid, Sipha flava (Forbes). No-choice studies indicated that Kanlow possessed multi-species resistance, with high levels of antibiosis to both aphid species, based on aphid survival at 7 and 14 days after aphid introduction and cumulative aphid days, while K×S possessed low-to-moderate levels of antibiosis to S. flava. Further, functional plant loss indices based on plant height and biomass indicated that tolerance is an important category of resistance for Summer plants to S. graminum. These studies also indicated that Summer lacks both tolerance and antibiosis to S. flava, relative to the other switchgrasses tested, whereas K×S lack tolerance and antibiosis to S. graminum. These studies are the first attempt to analyze the categories of resistance in switchgrass and provide critical information for characterizing the biological mechanisms of resistance and improving our knowledge of the plant-insect interactions within this system.

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Section: Discussionmentioning

confidence: 99%

Categories of Resistance to Greenbug and Yellow Sugarcane Aphid (Hemiptera: Aphididae) in Three Tetraploid Switchgrass Populations

et al. 2014

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“…The sorghum midge, Contarinia sorghicola (Coquillett) (Diptera: Cecidomyiidae), is a key insect pest of sorghum (Young and Teetes 1977). Eggs are deposited within flowering spikelets, and the maturing larvae feed on the ovary, which prevents seed development.…”

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confidence: 99%

Factors Influencing Adult Emergence from Diapausing Sorghum Midge, Contarinia sorghicola (Diptera: Cecidomyiidae)1

Baxendale

Teetes

1983

Environmental Entomology

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“…gions of the world where the crop is grown (Young and Teetes 1977). Females deposit eggs in the flowering spikelets of grasses in the genus Sorghum.…”

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confidence: 99%

“…Control of sorghum midge is accomplished primarily through early regional uniform planting of sorghum to avoid high midge densities during the flowering period, and by multiple insecticide applications when the economic threshold of one adult midge per panicle is reached (Bottrell 1971, Young an<:\ Teetes 1977. Attempts to optimize the early uniform planting strategy have been complicated by lack of a sound understanding of the early-season population dynamics of the pest.…”

mentioning

confidence: 99%

Thermal Requirements for Emergence of Overwintered Sorghum Midge (Diptera: Cecidomyiidae)1

Baxendale

Teetes

1983

Environmental Entomology

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Sorghum Entomology

Cited by 121 publications

References 0 publications

Categories of Resistance to Greenbug and Yellow Sugarcane Aphid (Hemiptera: Aphididae) in Three Tetraploid Switchgrass Populations

Categories of Resistance to Greenbug and Yellow Sugarcane Aphid (Hemiptera: Aphididae) in Three Tetraploid Switchgrass Populations

Factors Influencing Adult Emergence from Diapausing Sorghum Midge, Contarinia sorghicola (Diptera: Cecidomyiidae)1

Thermal Requirements for Emergence of Overwintered Sorghum Midge (Diptera: Cecidomyiidae)1

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