Paper · 2010 · Proceedings of the New Zealand Weed Control Conference

Effects of invertebrate pests on white and annual clovers in dryland soil

T.M. Eden; P.J. Gerard; D.J. Wilson; et al.

7
claims
14
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

Two experiments were carried out at Ruakura in soil taken from Whatawhata hill country pasture The relative susceptibility of several annual clovers (Trifolium spp) and perennial white clover (T repens) to slugs (Deroceras reticulatum) clover root weevil (Sitona lepidus) adults native crickets (Nemobius sp) or wheat bugs (Nysius huttoni) was tested by sowing seed of the clovers into separate rows in turf Susceptibility of clovers to clover cyst nematode (Heterodera trifolii) was tested by sowing each clover variety into Whatawhata soil inoculated with the nematode Plant growth was assessed in both experiments 4 weeks after sowing White clover was more susceptible to pests than the annual clovers with slugs and clover root weevil significantly reducing seedling survival and clover cyst nematode significantly reducing plant growth Subterranean clover (T subterraneum) cv Denmark was the least affected by pests showing no significant reduction in survival in the presence of slugs the most damaging pest and no significant decrease in plant root and shoot dry weight when exposed to nematodes

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Claims 7

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

White clover was more susceptible to pests than annual clovers.

Taxon
white and annual cloverst0
Material
White clovere0
Outcome
susceptible to pestse0
Direction
moree0
Comparator
annual cloverse0

Verbatim

e0

“White clover was more susceptible to pests than the annual clovers”

✓ located verbatim in the source · abstract, characters 638–704 · show in text ↑
t0

“white and annual clovers”

✓ located verbatim in the source · title, characters 33–57 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Slugs significantly reduced white clover seedling survival.

Taxon
white and annual cloverst0
Interactor
slugse0pest
Outcome
seedling survivale0
Direction
reducinge0

Verbatim

e0

“with slugs and clover root weevil significantly reducing seedling survival”

✓ located verbatim in the source · abstract, characters 705–779 · show in text ↑
t0

“white and annual clovers”

✓ located verbatim in the source · title, characters 33–57 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Clover root weevil significantly reduced white clover seedling survival.

Taxon
white and annual cloverst0
Interactor
clover root weevilSitona hispiduluse0pest
Outcome
seedling survivale0
Direction
reducinge0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sitona hispidulus
Sitona hispidulus · Interactorgbohne from Berlin, Germany · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“with slugs and clover root weevil significantly reducing seedling survival”

✓ located verbatim in the source · abstract, characters 705–779 · show in text ↑
t0

“white and annual clovers”

✓ located verbatim in the source · title, characters 33–57 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Clover cyst nematode significantly reduced white clover growth.

Taxon
white and annual cloverst0
Interactor
clover cyst nematodee0pest
Outcome
plant growthe0
Direction
reducinge0

Verbatim

e0

“clover cyst nematode significantly reducing plant growth”

✓ located verbatim in the source · abstract, characters 784–840 · show in text ↑
t0

“white and annual clovers”

✓ located verbatim in the source · title, characters 33–57 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Subterranean clover cv Denmark was least affected by pests.

Taxon
white and annual cloverst0
Material
Subterranean clover (T subterraneum) cv Denmarke0
Outcome
affected by pestse0
Direction
leaste0

Verbatim

e0

“Subterranean clover (T subterraneum) cv Denmark was the least affected by pests”

✓ located verbatim in the source · abstract, characters 841–920 · show in text ↑
t0

“white and annual clovers”

✓ located verbatim in the source · title, characters 33–57 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Slug exposure did not significantly reduce survival in subterranean clover cv Denmark.

Taxon
white and annual cloverst0
Interactor
slugse0pest
Outcome
survivale0
Direction
no significant reductione0

Verbatim

e0

“showing no significant reduction in survival in the presence of slugs”

✓ located verbatim in the source · abstract, characters 921–990 · show in text ↑
t0

“white and annual clovers”

✓ located verbatim in the source · title, characters 33–57 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nematode exposure did not significantly decrease root and shoot dry weight in subterranean clover cv Denmark.

Taxon
white and annual cloverst0
Interactor
nematodesNematodae0pest
Outcome
plant root and shoot dry weighte0
Direction
no significant decreasee0

Verbatim

e0

“no significant decrease in plant root and shoot dry weight when exposed to nematodes”

✓ located verbatim in the source · abstract, characters 1018–1102 · show in text ↑
t0

“white and annual clovers”

✓ located verbatim in the source · title, characters 33–57 · show in text ↑