Abstract
The present study was conducted to survey and population density of aphid Aphis gossypii Glover (Homoptera: Aphididae) infesting cucumber plants and its parasitoids were investigated at Diarb Nigem district during two season 2015 and 2016. Three primary parasitoids Lysiphlebus fabarum (Marshall), Diaeretiella rapae (M Intosh) and Binodoxys angelica (Haliday) and a hyperparasitoid, Pachyneuron sp. ((Hymenoptera: Aphidiidae)), were recorded. Primary parasitoid Lysiphlebus fabarum was the highly dominant species by relative density 53.76 and 52.24%, followed by D. rapae 22.58 and 27.73%, Binodoxys angelica 15.06 and 12.14%, while the hyperparasitoid , Pachyneuron sp., occurred by 8.60 and 7.89%, during 2015 and 2016 seasons respectively. The percentage of parasitism ranged from 3.14 % to 21.0 % in 2015, while it is starting by 2.66 % to reach its maximum 42.66% in 2016. Total developmental period of the parasitoid Lysiphlebus fabarum was 14.67 ± 1.16 days at 18.30°C ±1°C and 64 ±2RH%. Investigation the behaviour of the same parasitoid Lysiphlebus fabarum at varying host densities showed increase number of sting and number of mummies increased with increase of host density but decrease leaf arrival times and host arrival times with increasing . The obtained results showed that the longevity of the parasitoid Lysiphlebus fabarum was affected by temperatureand food supply.
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Claims 11
Claim · model-written summary
Three primary parasitoids and one hyperparasitoid were recorded on cucumber aphids.
- Taxon
- Cucumber Plants
Cucumis sativust0 - Interactor
- Lysiphlebus fabarumLysiphlebus fabarume0biocontrol_agent
- Second interactor
- Diaeretiella rapae
Diaeretiella rapaee0biocontrol_agent - Outcome
- Three primary parasitoidse0
- Qualifier
- Binodoxys angelica (Haliday) and a hyperparasitoid, Pachyneuron sp.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants in Egypt”
e0“Three primary parasitoids Lysiphlebus fabarum (Marshall), Diaeretiella rapae (M Intosh) and Binodoxys angelica (Haliday) and a hyperparasitoid, Pachyneuron sp. ((Hymenoptera: Aphidiidae)), were recorded”
Claim · model-written summary
Lysiphlebus fabarum had relative densities of 53.76% and 52.24% in 2015 and 2016.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- Lysiphlebus fabarumLysiphlebus fabarume0biocontrol_agent
- Outcome
- relative densitye0
- Value
- 53.76 and 52.24%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“Primary parasitoid Lysiphlebus fabarum was the highly dominant species by relative density 53.76 and 52.24%”
Claim · model-written summary
D. rapae had relative densities of 22.58% and 27.73%.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- D. rapaeDiaeretiella rapaee0biocontrol_agent
- Outcome
- D. rapaee0
- Value
- 22.58 and 27.73%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“D. rapae 22.58 and 27.73%”
Claim · model-written summary
Binodoxys angelica had relative densities of 15.06% and 12.14%.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- Binodoxys angelicae0biocontrol_agent
- Outcome
- Binodoxys angelicae0
- Value
- 15.06 and 12.14%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“Binodoxys angelica 15.06 and 12.14%”
Claim · model-written summary
Pachyneuron sp. occurred at 8.60% and 7.89%.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- Pachyneuron sp.
Pachyneurone0other - Outcome
- Pachyneuron sp.e0
- Value
- 8.60 and 7.89%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“Pachyneuron sp., occurred by 8.60 and 7.89%”
Claim · model-written summary
Parasitism ranged from 3.14% to 21.0% in 2015.
- Taxon
- Cucumber PlantsCucumis sativust0
- Outcome
- percentage of parasitisme0
- Value
- 3.14 % to 21.0 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“The percentage of parasitism ranged from 3.14 % to 21.0 % in 2015”
Claim · model-written summary
Parasitism ranged from 2.66% to 42.66% in 2016.
- Taxon
- Cucumber PlantsCucumis sativust0
- Outcome
- parasitisme1
- Value
- 2.66 %e0
- Qualifier
- maximum 42.66%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“starting by 2.66 % to reach its maximum 42.66% in 2016”
e1“The percentage of parasitism ranged from 3.14 % to 21.0 % in 2015”
Claim · model-written summary
Lysiphlebus fabarum developed over 14.67 ± 1.16 days at 18.30°C ±1°C and 64 ±2RH%.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- Lysiphlebus fabarumLysiphlebus fabarume0biocontrol_agent
- Outcome
- Total developmental period of the parasitoid Lysiphlebus fabarume0
- Value
- 14.67 ± 1.16 dayse0
- Qualifier
- 18.30°C ±1°C and 64 ±2RH%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“Total developmental period of the parasitoid Lysiphlebus fabarum was 14.67 ± 1.16 days at 18.30°C ±1°C and 64 ±2RH%”
Claim · model-written summary
Increasing host density increased sting and mummy numbers.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- hoste0pest
- Outcome
- number of sting and number of mummiese0
- Direction
- increasede0
- Qualifier
- increase of host densitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“increase number of sting and number of mummies increased with increase of host density”
Claim · model-written summary
Increasing host density decreased leaf and host arrival times.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- hoste0pest
- Outcome
- leaf arrival times and host arrival timese0
- Direction
- decreasee0
- Qualifier
- with increasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“decrease leaf arrival times and host arrival times with increasing”
Claim · model-written summary
Lysiphlebus fabarum longevity was affected by temperature and food supply.
- Taxon
- Cucumber PlantsCucumis sativust0
- Interactor
- Lysiphlebus fabarumLysiphlebus fabarume0biocontrol_agent
- Outcome
- longevity of the parasitoid Lysiphlebus fabarume0
- Qualifier
- temperatureand food supplye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cucumber Plants”
e0“longevity of the parasitoid Lysiphlebus fabarum was affected by temperatureand food supply”