Abstract
The characteristics of oviposition of potato tuber moth(PTM),Phthorimaea operculella(Zeller) on potato(Solanum tuberosum L.) foliage and tubers was investigated in a series of laboratory experiments.A specially designed two-choice olfactometer that joined to air filter with activated charcoal was utilized in judging the preference of insects between two materials.The results as follows:(1) PTM adults laid significantly more eggs on the leaves of potato than on those of cabbage(Brassica oleracea var.capitata),tomato(Lycopersicon esculentum) or capsicum(Capsicum annuum),however,no such difference was found between the leaves of potato and eggplant(Solanum melongena).(2)Insect laid significantly more eggs on potato tubers than on eggplant fruit or sweet potato tuberous roots,but there was no such difference between potato tubers and fruits of tomato or capsicum.(3) Neither boiling,nor autoclaving could destroy the attraction of potato tubers for oviposition.De-skinning of boiled potato tubers also did not affect the attraction of such tubers for egg laying.(4) Removal of entire skin or only sprouts from potato tubers significantly reduced oviposition of PTM on such tubers,compared with normal tubers.(5) There was no difference of egg-laying preference of PTM among light yellow-,red-,and purple skinned tubers.(6) PTM adults laid significantly more eggs on the filter paper coated with hexane extract of potato tubers than on that coated only with hexane solvent.Similar extraction procedure with potato foliage failed to extract any chemicals attracting voiposition.We conclude that certain chemicals were constantly released into the environment by potato tubers,which attracted PTM adults for laying eggs on potato tubers in storage.Further characterization of these chemicals is underway.
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Claims 13
Claim · model-written summary
Moths laid more eggs on potato leaves than cabbage, tomato or capsicum leaves.
- Taxon
- potato
Solanum tuberosume0 - Organ / stage
- leavese0
- Interactor
- potato tuber moth Phthorimaea operculella
Phthorimaea operculellat0pest - Outcome
- PTM adults laid significantly more eggse0
- Direction
- moree0
- Comparator
- cabbage(Brassica oleracea var.capitata),tomato(Lycopersicon esculentum) or capsicum(Capsicum annuum)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PTM adults laid significantly more eggs on the leaves of potato than on those of cabbage(Brassica oleracea var.capitata),tomato(Lycopersicon esculentum) or capsicum(Capsicum annuum)”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Moth oviposition did not differ between potato and eggplant leaves.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- leavese0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- no such differencee0
- Direction
- no such differencee0
- Comparator
- eggplant(Solanum melongena)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no such difference was found between the leaves of potato and eggplant(Solanum melongena)”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Moths laid more eggs on potato tubers than eggplant fruit or sweet potato roots.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- tuberse0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- Insect laid significantly more eggse0
- Direction
- moree0
- Comparator
- eggplant fruit or sweet potato tuberous rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Insect laid significantly more eggs on potato tubers than on eggplant fruit or sweet potato tuberous roots”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Moth oviposition did not differ between potato tubers and tomato or capsicum fruit.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- tuberse0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- no such differencee0
- Direction
- no such differencee0
- Comparator
- fruits of tomato or capsicume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no such difference between potato tubers and fruits of tomato or capsicum”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Boiling did not remove potato tuber attraction for moth oviposition.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- boilinge0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- attraction of potato tubers for ovipositione0
- Direction
- Neither boiling,nor autoclaving could destroye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither boiling,nor autoclaving could destroy the attraction of potato tubers for oviposition”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Autoclaving did not remove potato tuber attraction for moth oviposition.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- autoclavinge0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- attraction of potato tubers for ovipositione0
- Direction
- could destroye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither boiling,nor autoclaving could destroy the attraction of potato tubers for oviposition”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Removing skin from boiled potato tubers did not affect their attractiveness.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- De-skinning of boiled potato tuberse0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- attraction of such tubers for egg layinge0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“De-skinning of boiled potato tubers also did not affect the attraction of such tubers for egg laying.”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Removing all skin reduced moth oviposition on potato tubers versus normal tubers.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Removal of entire skine0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- oviposition of PTMe0
- Direction
- reducede0
- Comparator
- normal tuberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of entire skin or only sprouts from potato tubers significantly reduced oviposition of PTM on such tubers,compared with normal tubers.”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Removing sprouts reduced moth oviposition on potato tubers versus normal tubers.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- only sproutse0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- oviposition of PTMe0
- Direction
- reducede0
- Comparator
- normal tuberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of entire skin or only sprouts from potato tubers significantly reduced oviposition of PTM on such tubers,compared with normal tubers.”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
Moth egg-laying preference did not differ across tuber skin colors.
- Taxon
- potatoSolanum tuberosumt1
- Material
- light yellow-,red-,and purple skinned tuberse0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- egg-laying preference of PTMe0
- Direction
- no differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no difference of egg-laying preference of PTM among light yellow-,red-,and purple skinned tubers.”
t0“potato tuber moth Phthorimaea operculella”
t1“in potato”
Claim · model-written summary
Hexane tuber extract on filter paper raised moth oviposition versus solvent alone.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- hexane extract of potato tuberse0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- PTM adults laid significantly more eggse0
- Direction
- moree0
- Comparator
- hexane solvente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PTM adults laid significantly more eggs on the filter paper coated with hexane extract of potato tubers than on that coated only with hexane solvent.”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
The same extraction of potato foliage yielded no oviposition attractant.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- foliagee0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- failed to extract any chemicals attracting voipositione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar extraction procedure with potato foliage failed to extract any chemicals attracting voiposition.”
t0“potato tuber moth Phthorimaea operculella”
Claim · model-written summary
The authors inferred that potato tubers continuously release moth oviposition attractants.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- tuberse0
- Interactor
- potato tuber moth Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- attracted PTM adults for laying eggs on potato tubers in storagee0
- Qualifier
- certain chemicals were constantly released into the environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“certain chemicals were constantly released into the environment by potato tubers,which attracted PTM adults for laying eggs on potato tubers in storage.”
t0“potato tuber moth Phthorimaea operculella”
The same questions in other papers
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15 papers more in this group
See all 19 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.