Abstract
Abstract Small‐scale greenhouse intercrop experiments were carried out, with Brussels sprouts ( Brassica oleracea gemmifera L.) as crop plants and the herbs sage ( Salvia officinalis L.) and thyme ( Thymus vulgaris L.) as intercrops. Significant reductions in diamond‐back moth ( Plutella xylostella (L.)) oviposition were observed on intercropped brassicas. Green polyethylene models were shown to simulate the effect of the herbs. Contrast was shown to have no effect on oviposition by the diamond‐back moth. An intercrop of white clover ( Trifolium repens L.) vs. an intercrop of thyme, resulted in significantly lower egg‐loads on brassicas associated with clover. An olfactory effect is postulated to account for this difference. Résumé Effets de la présence de Labiées et de trèfle blanc sur la ponte de Plutella xylostella Le chou de Bruxelles ( Brassica oleracea gemmifera L.), comme plante cultivée, et la sauge ( Salvia officinalis L.) et le thym ( Thymus vulgaris L.), ont été utilisés en serre pour des expériences à petite échelle sur les associations culturales. Une diminution significative de la ponte de la teigne du chou ( Plutella xylostella L,) a été observée sur ces choux de Bruxelles. Des leurres en polystyrène vert ont été placés pour simuler l'effet des mauvaises herbes. Ils n'ont eu aucun effet sur la ponte de la teigne. L'association avec le trèfle blanc ( Trifolium repens L.), comparée à celle avec le thym, a entrainé une ponte, sur choux de Bruxelles associés au trèfle significativement plus faible. On peut envisager que cette différence est due à une influence olfactive.
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Claims 5
Claim · model-written summary
Intercropping Brussels sprouts with sage and thyme significantly reduced diamond-back moth oviposition.
- Taxon
- Brassica oleracea gemmifera L.
Brassica oleraceae1 - Treatment
- the herbs sage ( Salvia officinalis L.) and thyme ( Thymus vulgaris L.) as intercropse1
- Interactor
- Plutella xylostella
Plutella xylostellat0pest - Outcome
- ovipositione0
- Direction
- Significant reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of labiate herbs and white clover on Plutella xylostella oviposition”
e0“Significant reductions in diamond‐back moth ( Plutella xylostella (L.)) oviposition were observed on intercropped brassicas”
e1“Brussels sprouts ( Brassica oleracea gemmifera L.) as crop plants and the herbs sage ( Salvia officinalis L.) and thyme ( Thymus vulgaris L.) as intercrops”
Claim · model-written summary
Green polyethylene models simulated the effect of the herbs.
- Taxon
- Brassica oleracea gemmifera L.Brassica oleraceae1
- Treatment
- Green polyethylene modelse5
- Outcome
- simulate the effect of the herbse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brussels sprouts ( Brassica oleracea gemmifera L.) as crop plants and the herbs sage ( Salvia officinalis L.) and thyme ( Thymus vulgaris L.) as intercrops”
e5“Green polyethylene models were shown to simulate the effect of the herbs”
Claim · model-written summary
Contrast had no effect on diamond-back moth oviposition.
- Taxon
- Brassica oleracea gemmifera L.Brassica oleraceae1
- Treatment
- Contraste2
- Interactor
- diamond‐back mothPlutella xylostellae2pest
- Outcome
- ovipositione2
- Direction
- no effecte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brussels sprouts ( Brassica oleracea gemmifera L.) as crop plants and the herbs sage ( Salvia officinalis L.) and thyme ( Thymus vulgaris L.) as intercrops”
e2“Contrast was shown to have no effect on oviposition by the diamond‐back moth”
Claim · model-written summary
White clover intercrop gave significantly lower egg loads on brassicas than a thyme intercrop.
- Taxon
- Brassica oleracea gemmifera L.Brassica oleraceae1
- Treatment
- white clover ( Trifolium repens L.)e3
- Outcome
- egg‐loads on brassicase3
- Direction
- significantly lowere3
- Comparator
- an intercrop of thymee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brussels sprouts ( Brassica oleracea gemmifera L.) as crop plants and the herbs sage ( Salvia officinalis L.) and thyme ( Thymus vulgaris L.) as intercrops”
e3“An intercrop of white clover ( Trifolium repens L.) vs. an intercrop of thyme, resulted in significantly lower egg‐loads on brassicas associated with clover”
Claim · model-written summary
An olfactory effect is postulated to account for the lower egg loads with clover.
- Taxon
- Brassica oleracea gemmifera L.Brassica oleraceae1
- Outcome
- this differencee4
- Qualifier
- An olfactory effecte4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Brussels sprouts ( Brassica oleracea gemmifera L.) as crop plants and the herbs sage ( Salvia officinalis L.) and thyme ( Thymus vulgaris L.) as intercrops”
e4“An olfactory effect is postulated to account for this difference”
The same questions in other papers
intercropping · Plutella xylostella · Brassica oleracea (wild cabbage)Positive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
6 papers more in this group
See all 10 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.