A. nigritus 15 claims

Interactor role: biocontrol_agent

Literal values, not normalised. 183,098 distinct spellings cover 1,706,259 claims; only letter case and spacing are merged, so “maize”, “corn” and “Zea mays L.” are three separate entries here. The By interacting organism view merges spellings of one organism through NCBI Taxonomy.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Aphelinus nigritus spent more time on sorghum aphid honeydew produced on either grain sorghum or Johnson grass than on a water control.

Taxon
grain sorghum or Johnson grassSorghum bicolorSorghum halepensee2
Treatment
SA honeydewe1
Interactor
A. nigrituse1biocontrol_agent
Second interactor
Melanaphis sorghiMelanaphis sorghie3pest
Outcome
timee1
Direction
spent more timee1
Comparator
water controle1

Verbatim

e1

“Compared to a water control, A. nigritus spent more time on SA honeydew produced on either host plant”

✓ located verbatim in the source · abstract, characters 932–1033
e2

“assessed via retention time A. nigritus preference for honeydew produced on grain sorghum or Johnson grass, Sorghum halepense”

✓ located verbatim in the source · abstract, characters 805–930
e3

“the sorghum aphid (SA), Melanaphis sorghi”

✓ located verbatim in the source · abstract, characters 213–254

Title

Aphelinus nigritus Howard (Hymenoptera: Aphelinidae) Preference for Sorghum Aphid, Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae), Honeydew Is Stronger in Johnson Grass, Sorghum halepense, Than in Grain Sorghum, Sorghum bicolor

Crys Wright; Anjel M. Helms; Julio S. Bernal; et al. Insects 2022. doi:10.3390/insects14010010

Other claims from this paper (3)
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Aphelinus nigritus preferred sorghum aphid honeydew produced on Johnson grass over honeydew produced on grain sorghum.

Taxon
Johnson grassSorghum halepensee1
Treatment
honeydew produced on Johnson grasse1
Interactor
A. nigrituse1biocontrol_agent
Outcome
preferencee2
Direction
preferrede1
Comparator
honeydew produced on grain sorghume2

Verbatim

e1

“Despite similar honeydew profiles from both plant species, A. nigritus preferred honeydew produced on Johnson grass”

✓ located verbatim in the source · abstract, characters 1035–1150
e2

“assessed via retention time A. nigritus preference for honeydew produced on grain sorghum or Johnson grass, Sorghum halepense”

✓ located verbatim in the source · abstract, characters 805–930

Title

Aphelinus nigritus Howard (Hymenoptera: Aphelinidae) Preference for Sorghum Aphid, Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae), Honeydew Is Stronger in Johnson Grass, Sorghum halepense, Than in Grain Sorghum, Sorghum bicolor

Crys Wright; Anjel M. Helms; Julio S. Bernal; et al. Insects 2022. doi:10.3390/insects14010010

Other claims from this paper (3)
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2018, natural enemies suppressed sugarcane aphid by ca. 95% on resistant sorghum hybrids when complete exclusion was compared with partial exclusion, attributable to A. nigritus.

Taxon
sorghumSorghume0
Material
resistant hybridse1
Treatment
complete exclusione6
Interactor
Melanaphis sacchariMelanaphis saccharie0pest
Second interactor
A. nigrituse1biocontrol_agent
Outcome
aphid suppression attributable to A. nigrituse1
Direction
increaseinferrede1
Value
ca. 95%e1
Comparator
partial exclusione1

Verbatim

e0

“The sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), is an invasive sorghum pest that has threatened over 90% of North American sorghum production”

✓ located verbatim in the source · abstract, characters 0–169
e1

“In 2018, aphid suppression attributable to A. nigritus was ca. 95% on the resistant hybrids and 80% on the susceptible hybrids when comparing aphid counts from complete and partial exclusion treatments, while few predators were observed”

✓ located verbatim in the source · abstract, characters 856–1092
e6

“complete exclusion (excludes parasitoids and predators)”

✓ located verbatim in the source · abstract, characters 673–728

Title

Suppression of the Sugarcane Aphid, Melanaphis sacchari (Hemiptera: Aphididae), by Resident Natural Enemies on Susceptible and Resistant Sorghum Hybrids

Ashleigh M Faris; Norman C Elliott; Michael J Brewer Environmental Entomology 2021. doi:10.1093/ee/nvab147

Other claims from this paper (8)
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2018, natural enemies suppressed sugarcane aphid by 80% on susceptible sorghum hybrids when complete exclusion was compared with partial exclusion, attributable to A. nigritus.

Taxon
sorghumSorghume0
Material
susceptible hybridse1
Treatment
complete exclusione6
Interactor
Melanaphis sacchariMelanaphis saccharie0pest
Second interactor
A. nigrituse1biocontrol_agent
Outcome
aphid suppression attributable to A. nigrituse1
Direction
increaseinferrede1
Value
80%e1
Comparator
partial exclusione1

Verbatim

e0

“The sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), is an invasive sorghum pest that has threatened over 90% of North American sorghum production”

✓ located verbatim in the source · abstract, characters 0–169
e1

“In 2018, aphid suppression attributable to A. nigritus was ca. 95% on the resistant hybrids and 80% on the susceptible hybrids when comparing aphid counts from complete and partial exclusion treatments, while few predators were observed”

✓ located verbatim in the source · abstract, characters 856–1092
e6

“complete exclusion (excludes parasitoids and predators)”

✓ located verbatim in the source · abstract, characters 673–728

Title

Suppression of the Sugarcane Aphid, Melanaphis sacchari (Hemiptera: Aphididae), by Resident Natural Enemies on Susceptible and Resistant Sorghum Hybrids

Ashleigh M Faris; Norman C Elliott; Michael J Brewer Environmental Entomology 2021. doi:10.1093/ee/nvab147

Other claims from this paper (8)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Aphelinus nigritus increased in abundance and impact on sorghum after the sugarcane aphid infested sorghum.

Taxon
sorghumSorghume0
Interactor
A. nigrituse0biocontrol_agent
Second interactor
Melanaphis sacchariMelanaphis saccharie0pest
Outcome
abundance and impacte0
Direction
increasede0
Setting
Southern Plainse0

Verbatim

e0

“after the sugarcane aphid, Melanaphis sacchari (Zehntner), infested sorghum (Sorghum bicolor (L.) Moench) on the Southern Plains, A. nigritus increased in abundance and impact on this summer crop”

✓ located verbatim in the source · abstract, characters 415–610

Title

Increase in Importance of Aphelinus nigritus (Howard) on Winter Crops in Oklahoma Coincides with Invasion of Sugarcane Aphid on Sorghum in Oklahoma

K. L. Giles; N. C. Elliott; H. E. Butler; et al. Southwestern Entomologist 2021. doi:10.3958/059.046.0105

Other claims from this paper (4)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Aphelinus nigritus was relatively abundant in winter wheat during Fall 2016.

Taxon
winter wheatTriticum aestivume1
Interactor
A. nigrituse2biocontrol_agent
Outcome
relatively abundante2

Verbatim

e1

“parasitizing as many as 5.4% of sentinel aphids in winter wheat fields”

✓ located verbatim in the source · abstract, characters 1097–1167
e2

“A. nigritus was relatively abundant during Fall 2016, parasitizing as many as 5.4% of sentinel aphids in winter wheat fields which was more than the typically dominant parasitoid L. testaceipes”

✓ located verbatim in the source · abstract, characters 1043–1236

Title

Increase in Importance of Aphelinus nigritus (Howard) on Winter Crops in Oklahoma Coincides with Invasion of Sugarcane Aphid on Sorghum in Oklahoma

K. L. Giles; N. C. Elliott; H. E. Butler; et al. Southwestern Entomologist 2021. doi:10.3958/059.046.0105

Other claims from this paper (4)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Aphelinus nigritus parasitized as many as 5.4% of sentinel aphids in winter wheat fields, more than L. testaceipes.

Taxon
winter wheatTriticum aestivume1
Interactor
sentinel aphidse2pest
Second interactor
A. nigrituse2biocontrol_agent
Outcome
parasitizinge2
Direction
moree2
Value
5.4%e2
Comparator
L. testaceipese2

Verbatim

e1

“parasitizing as many as 5.4% of sentinel aphids in winter wheat fields”

✓ located verbatim in the source · abstract, characters 1097–1167
e2

“A. nigritus was relatively abundant during Fall 2016, parasitizing as many as 5.4% of sentinel aphids in winter wheat fields which was more than the typically dominant parasitoid L. testaceipes”

✓ located verbatim in the source · abstract, characters 1043–1236

Title

Increase in Importance of Aphelinus nigritus (Howard) on Winter Crops in Oklahoma Coincides with Invasion of Sugarcane Aphid on Sorghum in Oklahoma

K. L. Giles; N. C. Elliott; H. E. Butler; et al. Southwestern Entomologist 2021. doi:10.3958/059.046.0105

Other claims from this paper (4)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Percentage of parasitism by Aphelinus nigritus decreased during the study.

Taxon
winter wheatTriticum aestivume1
Interactor
A. nigrituse3biocontrol_agent
Outcome
percentage of parasitisme3
Direction
decreasede3
Qualifier
during the studye3

Verbatim

e1

“parasitizing as many as 5.4% of sentinel aphids in winter wheat fields”

✓ located verbatim in the source · abstract, characters 1097–1167
e3

“However, percentage of parasitism by A. nigritus decreased during the study”

✓ located verbatim in the source · abstract, characters 1238–1313

Title

Increase in Importance of Aphelinus nigritus (Howard) on Winter Crops in Oklahoma Coincides with Invasion of Sugarcane Aphid on Sorghum in Oklahoma

K. L. Giles; N. C. Elliott; H. E. Butler; et al. Southwestern Entomologist 2021. doi:10.3958/059.046.0105

Other claims from this paper (4)
Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Abundance of Aphelinus nigritus mirrored that of sugarcane aphids in the region.

Taxon
winter wheatTriticum aestivume1
Interactor
A. nigrituse4biocontrol_agent
Second interactor
sugarcane aphidse4pest
Outcome
abundancee4

Not reportedDirection

Verbatim

e1

“parasitizing as many as 5.4% of sentinel aphids in winter wheat fields”

✓ located verbatim in the source · abstract, characters 1097–1167
e4

“Our results suggested that abundance of A. nigritus mirrored those of sugarcane aphids in the region”

✓ located verbatim in the source · abstract, characters 1315–1415

Title

Increase in Importance of Aphelinus nigritus (Howard) on Winter Crops in Oklahoma Coincides with Invasion of Sugarcane Aphid on Sorghum in Oklahoma

K. L. Giles; N. C. Elliott; H. E. Butler; et al. Southwestern Entomologist 2021. doi:10.3958/059.046.0105

Other claims from this paper (4)
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

A. nigritus had the smallest mean importance index, 0.61, across locations.

Taxon
SorghumSorghumt0
Interactor
A. nigrituse0biocontrol_agent
Outcome
importance indexe1
Direction
smalleste0
Value
I = 0.61e0

Verbatim

e0

“A. nigritus had the smallest, I = 0.61”

✓ located verbatim in the source · abstract, characters 1910–1948
e1

“larval coccinellids had the largest importance index”

✓ located verbatim in the source · abstract, characters 1842–1894
t0

“Sorghum Fields”

✓ located verbatim in the source · title, characters 96–110

Title

Recruitment of Natural Enemies of the Invasive Sugarcane Aphid Vary Spatially and Temporally in Sorghum Fields in the Southern Great Plains of the USA

Norman Elliott; Kristopher Giles; Michael Brewer; et al. Southwestern Entomologist 2021. doi:10.3958/059.046.0207

Other claims from this paper (10)