Abstract
Abstract: The potato tuber moth is a noxious pest of potato in stores, where the use of repellent plants is an environmentally sound alternative to the application of chemical pesticides. We evaluated the protective effect of native Minthostachys species (Lamiaceae) against tuber infestation by the potato tuber moth in a rustic store in Cusco, Perú. We covered potato tubers with dried shoots of Minthostachys spicata and Minthostachys glabrescens and compared tuber damage with a control treatment of maize straw. We also conducted a no‐choice oviposition bioassay in the laboratory, testing the oviposition deterrence of essential oils of M. spicata , M. glabrescens and Minthostachys mollis at natural concentrations. We recorded the number of eggs laid by mated moths on filter paper treated with essential oils of each of the three species and on two control treatments: hexane and untreated blank. Finally, we tested for differences in oviposition deterrence among five full‐sib families of potato tuber moth raised under identical conditions. We found that dried, chopped leaves and flowers of Minthostachys species reduced the percentage of tuber damage in stores in comparison with the control (5% vs. 12%), but no difference in protection was found between species. Essential oils at natural concentrations deterred moth oviposition, reducing the number of eggs laid by about 80% compared with the control treatments; again, there were no significant differences between Minthostachys species. Finally, whereas we detected among‐family variation in oviposition on filter papers treated with essential oils, no difference was found in the number of eggs laid on control substrates. Therefore, there was genetic variation for oviposition deterrence in the potato tuber moth and resistance to repellent plants might evolve thereafter.
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Claims 7
Claim · model-written summary
Minthostachys leaves and flowers reduced potato tuber damage in stores from 12% to 5%.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- dried, chopped leaves and flowers of Minthostachys speciese0
- Interactor
- potato tuber motht0pest
- Outcome
- percentage of tuber damagee0
- Direction
- reducede0
- Value
- 5% vs. 12%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dried, chopped leaves and flowers of Minthostachys species reduced the percentage of tuber damage in stores in comparison with the control (5% vs. 12%)”
t0“potato tuber moth”
Claim · model-written summary
Tuber protection did not differ between Minthostachys species.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Minthostachys speciese0
- Interactor
- potato tuber motht0pest
- Outcome
- protectione0
- Direction
- no differencee0
- Comparator
- speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dried, chopped leaves and flowers of Minthostachys species reduced the percentage of tuber damage in stores in comparison with the control (5% vs. 12%), but no difference in protection was found between species”
t0“potato tuber moth”
Claim · model-written summary
Minthostachys essential oils reduced moth egg laying by about 80% relative to controls.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Essential oils at natural concentrationse0
- Interactor
- potato tuber motht0pest
- Outcome
- number of eggs laide0
- Direction
- reducinge0
- Value
- about 80%e0
- Comparator
- control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oils at natural concentrations deterred moth oviposition, reducing the number of eggs laid by about 80% compared with the control treatments”
t0“potato tuber moth”
Claim · model-written summary
Oviposition deterrence did not significantly differ between Minthostachys species.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Minthostachys speciese0
- Interactor
- potato tuber motht0pest
- Outcome
- no significant differencese0
- Direction
- no significant differencese0
- Comparator
- Minthostachys speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between Minthostachys species”
t0“potato tuber moth”
Claim · model-written summary
Moth families varied in oviposition on oil-treated paper.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- essential oilse0
- Interactor
- potato tuber motht0pest
- Outcome
- oviposition on filter paperse0
- Direction
- variatione0
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we detected among‐family variation in oviposition on filter papers treated with essential oils”
t0“potato tuber moth”
Claim · model-written summary
Moth families did not differ in egg laying on control substrates.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- potato tuber motht0pest
- Outcome
- number of eggs laid on control substratese0
- Direction
- no differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no difference was found in the number of eggs laid on control substrates”
t0“potato tuber moth”
Claim · model-written summary
The authors infer genetic variation in moth response to repellent plants and possible resistance evolution.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- potato tuber mothe0pest
- Outcome
- genetic variation for oviposition deterrencee0
- Qualifier
- resistance to repellent plants might evolve thereaftere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was genetic variation for oviposition deterrence in the potato tuber moth and resistance to repellent plants might evolve thereafter”
t0“potato tuber moth”
The same questions in other papers
botanical · pest · Solanum tuberosum (potato)Positive and negative results
31 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- negative
32 papers more in this group
See all 36 papers →processing · pest · Solanum tuberosum (potato)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.