Abstract
Background: Phthorimaea operculella (potato tuber moth) is among the most destructive pests of Solanaceous crops.Excessive use of chemical pesticides poses environmental and health concerns.Plant-derived materials offer environmentally friendly alternatives with lower ecological risk.Objective: In this research, the insecticidal toxicity of Salvia hydrangea DC. ex Benth essential oil and extract was evaluated on multiple life stages of P. operculella.Additionally, larval penetration and adults' oviposition preferences were assessed.Methods: Bioassays were conducted at 25 2 C, 65 5 % relative humidity (RH), and a photoperiod of 8:16 (L:D) in a completely randomized design with five replications per treatment.Probit analysis was used to estimate lethal concentrations (LC50).Results: Adults were the most sensitive to S. hydrangea essential oil (LC50 = 0.33 l/L air).The plant extract was more toxic to adults (LC50 = 219.72 mg/L) than to eggs (LC50 = 490.24mg/L).Both the essential oil and the extract reduced larval penetration rates and significantly affected oviposition preferences of adult P. operculella.In addition, among homeopathic preparations tested, Silicea 30 C showed the greatest effect on potato growth parameters.Conclusion: Salvia hydrangea essential oil and extract exhibit substantial activity against P. operculella and can contribute to protecting stored potatoes from infestation.When used in combination with Silicea 30 C, these plant-derived products may be integrated into broader pest management programs.Further studies should evaluate field efficacy, non-target effects, and compatibility with compatible storage practices.
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Claims 8
Claim · model-written summary
Adult moths were the most sensitive stage to Salvia essential oil, with LC50 of 0.33 l/L air.
- Taxon
- P. operculella
Phthorimaea operculellae1 - Treatment
- S. hydrangea essential oile0
- Outcome
- most sensitivee0
- Value
- 0.33 l/L aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adults were the most sensitive to S. hydrangea essential oil (LC50 = 0.33 l/L air)”
e1“adult P. operculella”
Claim · model-written summary
The plant extract was more toxic to adults, with LC50 of 219.72 mg/L.
- Taxon
- P. operculellaPhthorimaea operculellae1
- Treatment
- plant extracte0
- Outcome
- toxic to adultse0
- Direction
- more toxice0
- Value
- 219.72 mg/Le0
- Comparator
- eggse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant extract was more toxic to adults (LC50 = 219.72 mg/L) than to eggs (LC50 = 490.24mg/L)”
t0“Phthorimaea operculella”
e1“adult P. operculella”
Claim · model-written summary
The egg LC50 for plant extract was 490.24mg/L.
- Taxon
- P. operculellaPhthorimaea operculellae1
- Organ / stage
- eggse0
- Outcome
- LC50e0
- Value
- 490.24mg/Le0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“than to eggs (LC50 = 490.24mg/L)”
t0“Phthorimaea operculella”
e1“adult P. operculella”
Claim · model-written summary
Essential oil reduced larval penetration rates.
- Taxon
- P. operculellaPhthorimaea operculellae1
- Treatment
- essential oile0
- Outcome
- larval penetration ratese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the essential oil and the extract reduced larval penetration rates”
t0“Phthorimaea operculella”
e1“adult P. operculella”
Claim · model-written summary
Extract reduced larval penetration rates.
- Taxon
- P. operculellaPhthorimaea operculellae1
- Treatment
- extracte0
- Outcome
- larval penetration ratese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the essential oil and the extract reduced larval penetration rates”
t0“Phthorimaea operculella”
e1“adult P. operculella”
Claim · model-written summary
Essential oil significantly affected adult moth oviposition preferences.
- Taxon
- P. operculellaPhthorimaea operculellae0
- Treatment
- essential oile0
- Outcome
- oviposition preferencese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the essential oil and the extract reduced larval penetration rates and significantly affected oviposition preferences of adult P. operculella”
Claim · model-written summary
Extract significantly affected adult moth oviposition preferences.
- Taxon
- P. operculellaPhthorimaea operculellae0
- Treatment
- extracte0
- Outcome
- oviposition preferencese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the essential oil and the extract reduced larval penetration rates and significantly affected oviposition preferences of adult P. operculella”
Claim · model-written summary
Silicea 30 C had the greatest effect on potato growth parameters among tested preparations.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- Silicea 30 Ce0
- Outcome
- potato growth parameterse0
- Direction
- greateste0
- Comparator
- homeopathic preparations testede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“among homeopathic preparations tested, Silicea 30 C showed the greatest effect on potato growth parameters”
The same questions in other papers
botanical · pest · Phthorimaea operculella (potato tuberworm)Results agree
1 paper in the same direction as this paper
- positive
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.