Abstract
Population fluctuations of the common green lacewing, Chrysoperla carnea Stephens, and those of the sweetpotato whitefly, Bemisia tabaci (Gennadius), were followed for 4 yr in cotton, Gossypium hirsutum L., fields in Israel. Samples were taken and insecticidal controls were applied to determine the importance of C. carnea as a controlling factor of Bemisia in cotton. The results showed that although the lacewings occurred in the field together with Bemisia and their larvae fed on Bemisia nymphs, C. carnea was not an efficient controlling agent of whiteflies. This lack of efficiency probably was related to behavioral preferences of the predator as well as to its nutritional demands that were met only marginally by feeding on whiteflies. Application of the insecticide monocrotophos often resulted in an increase in lacewing egg populations. Influence of other insecticides on the eggs and larvae was often detrimental.
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Claims 5
Claim · model-written summary
Lacewing larvae fed on whitefly nymphs in cotton fields.
- Taxon
- Cotton
Gossypium hirsutumt0 - Second interactor
- lacewingsNeuropterae0biocontrol_agent
- Outcome
- larvae fed on Bemisia nymphse0
- Setting
- fielde0
BemisiaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“the lacewings occurred in the field together with Bemisia and their larvae fed on Bemisia nymphs”
Claim · model-written summary
C. carnea was not an efficient whitefly control agent in cotton.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- whitefliesAleyrodoideae0pest
- Second interactor
- C. carnea
_Chrysoperla_carnea_-_dorsal_view.jpg?width=60)
Chrysoperla carneae0biocontrol_agent - Outcome
- controlling agent of whitefliese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Chrysoperla_carnea_-_dorsal_view.jpg?width=500)
Verbatim
t0“Cotton”
e0“C. carnea was not an efficient controlling agent of whiteflies”
Claim · model-written summary
The authors linked poor lacewing efficacy to predator behavior and marginal nutrition from whiteflies.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- whitefliesAleyrodoideae0pest
- Outcome
- lack of efficiencye0
- Qualifier
- behavioral preferences of the predatore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“This lack of efficiency probably was related to behavioral preferences of the predator as well as to its nutritional demands that were met only marginally by feeding on whiteflies”
Claim · model-written summary
Monocrotophos application often increased lacewing egg populations.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- insecticide monocrotophose0
- Interactor
- lacewinge0biocontrol_agent
- Outcome
- lacewing egg populationse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“Application of the insecticide monocrotophos often resulted in an increase in lacewing egg populations”
Claim · model-written summary
Other insecticides were often detrimental to lacewing eggs and larvae.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- other insecticidese0
- Outcome
- eggs and larvaee0
- Direction
- detrimentale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“Influence of other insecticides on the eggs and larvae was often detrimental”
The same questions in other papers
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- negative
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See all 10 papers →insecticide · pest · Gossypium hirsutum (cotton)Results differ
50 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
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See all 76 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.