Abstract
Abstract: Biology of Hippodamia variegata Goeze (Col., Coccinellidae) and its suitability against Aphis gossypii Glov (Hom., Aphididae) on cucumber under greenhouse conditions. Research work carried out in the laboratory has shown that temperature has a great effect on the development and the amount of feeding of Hippodamia variegata . The optimum temperature for its development and voracity approaches 26°C and the threshold development temperature is about 11.22°C. Investigations on its use in cucumber greenhouses against Aphis gossypii , the release of larvae and adult forms had shown satisfactory results. The efficiency level of this ladybird is a function of the ratio predator/prey and on the level of the aphid population at the moment of the ladybird release. The effect of density of the prey on the fecundity and the settlement of this ladybird under greenhouse conditions were also studied. The biological features and the efficiency of this ladybird are discussed.
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Claims 4
Claim · model-written summary
The optimum temperature for development and voracity of Hippodamia variegata approaches 26°C.
- Taxon
- cucumber
Cucumis sativuse1 - Interactor
- Hippodamia variegata
Hippodamia variegatat0biocontrol_agent - Outcome
- development and voracitye0
- Value
- 26°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hippodamia variegata”
e0“The optimum temperature for its development and voracity approaches 26°C and the threshold development temperature is about 11.22°C”
e1“Investigations on its use in cucumber greenhouses against Aphis gossypii , the release of larvae and adult forms had shown satisfactory results”
Claim · model-written summary
The threshold development temperature of Hippodamia variegata is about 11.22°C.
- Taxon
- cucumberCucumis sativuse1
- Interactor
- Hippodamia variegataHippodamia variegatat0biocontrol_agent
- Outcome
- threshold development temperaturee0
- Value
- about 11.22°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hippodamia variegata”
e0“The optimum temperature for its development and voracity approaches 26°C and the threshold development temperature is about 11.22°C”
e1“Investigations on its use in cucumber greenhouses against Aphis gossypii , the release of larvae and adult forms had shown satisfactory results”
Claim · model-written summary
Release of larvae and adult forms of Hippodamia variegata gave satisfactory results against Aphis gossypii in cucumber greenhouses.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- release of larvae and adult formse1
- Interactor
- Aphis gossypii
Aphis gossypiie1pest - Second interactor
- Hippodamia variegataHippodamia variegatat0biocontrol_agent
- Outcome
- satisfactory resultse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hippodamia variegata”
e1“Investigations on its use in cucumber greenhouses against Aphis gossypii , the release of larvae and adult forms had shown satisfactory results”
Claim · model-written summary
Efficiency of Hippodamia variegata is a function of the predator/prey ratio and of aphid population level at the time of release.
- Taxon
- cucumberCucumis sativuse1
- Interactor
- Hippodamia variegataHippodamia variegatat0biocontrol_agent
- Second interactor
- aphide2pest
- Outcome
- efficiency level of this ladybirde2
- Qualifier
- a function of the ratio predator/prey and on the level of the aphid population at the moment of the ladybird releasee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hippodamia variegata”
e1“Investigations on its use in cucumber greenhouses against Aphis gossypii , the release of larvae and adult forms had shown satisfactory results”
e2“The efficiency level of this ladybird is a function of the ratio predator/prey and on the level of the aphid population at the moment of the ladybird release”