Abstract
Abstract Stand management in lucerne ( Medicago sativa ) was used to conserve natural enemies and reduce overwintering aphid ( Acyrthosiphon kondoi and A. pisum ) numbers. Comparison of stem and sweep net counts allowed sweep counts of predators to be calibrated, and showed that the parasite, Aphidius eadyi , and the predator, Micromus tasmaniae , were best synchronised with lucerne aphid populations. Lucerne reservoirs created by strip‐cutting or strip‐grazing were associated with lower aphid populations and lower ratios of aphids:predators, except in spring. Laboratory‐bred parasites were released to augment early spring populations, but slow dispersal reduced their impact. Winter grazing and herbicide treatment significantly reduced aphid populations in spring. Insecticide trials confirmed the place of pirimicarb as a selective aphicide in integrated programmes.
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Claims 10
Claim · model-written summary
Sweep-net predator counts could be calibrated against stem counts.
- Taxon
- lucerne
Medicago sativat0 - Outcome
- sweep counts of predatorse0
- Comparator
- stem and sweep net countse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Comparison of stem and sweep net counts allowed sweep counts of predators to be calibrated”
t0“lucerne”
Claim · model-written summary
Aphidius eadyi was best synchronized with lucerne aphid populations.
- Taxon
- lucerneMedicago sativae0
- Interactor
- Aphidius eadyiAphidius eadyie0biocontrol_agent
- Outcome
- best synchronised with lucerne aphid populationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the parasite, Aphidius eadyi , and the predator, Micromus tasmaniae , were best synchronised with lucerne aphid populations”
Claim · model-written summary
Micromus tasmaniae was best synchronized with lucerne aphid populations.
- Taxon
- lucerneMedicago sativae0
- Interactor
- Micromus tasmaniae
Micromus tasmaniaee0biocontrol_agent - Outcome
- best synchronised with lucerne aphid populationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the parasite, Aphidius eadyi , and the predator, Micromus tasmaniae , were best synchronised with lucerne aphid populations”
Claim · model-written summary
Strip-cut reservoirs were associated with lower aphid populations except in spring.
- Taxon
- LucerneMedicago sativae0
- Treatment
- strip‐cuttinge0
- Interactor
- aphidsAphidomorphae0pest
- Outcome
- aphid populationse0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lucerne reservoirs created by strip‐cutting or strip‐grazing were associated with lower aphid populations and lower ratios of aphids:predators, except in spring”
Claim · model-written summary
Strip-grazed reservoirs were associated with lower aphid populations except in spring.
- Taxon
- LucerneMedicago sativae0
- Treatment
- strip‐grazinge0
- Interactor
- aphidsAphidomorphae0pest
- Outcome
- aphid populationse0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lucerne reservoirs created by strip‐cutting or strip‐grazing were associated with lower aphid populations and lower ratios of aphids:predators, except in spring”
Claim · model-written summary
Reservoirs were associated with lower aphid-to-predator ratios except in spring.
- Taxon
- LucerneMedicago sativae0
- Treatment
- Lucerne reservoirse0
- Interactor
- aphidsAphidomorphae0pest
- Outcome
- ratios of aphids:predatorse0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lucerne reservoirs created by strip‐cutting or strip‐grazing were associated with lower aphid populations and lower ratios of aphids:predators, except in spring”
Claim · model-written summary
Released laboratory-bred parasites had limited impact because they dispersed slowly.
- Taxon
- lucerneMedicago sativat0
- Treatment
- Laboratory‐bred parasites were releasede0
- Interactor
- parasitese0biocontrol_agent
- Outcome
- their impacte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Laboratory‐bred parasites were released to augment early spring populations, but slow dispersal reduced their impact”
t0“lucerne”
Claim · model-written summary
Winter grazing significantly reduced spring aphid populations.
- Taxon
- lucerneMedicago sativat0
- Treatment
- Winter grazinge0
- Interactor
- aphide0pest
- Outcome
- aphid populationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Winter grazing and herbicide treatment significantly reduced aphid populations in spring”
t0“lucerne”
Claim · model-written summary
Herbicide treatment significantly reduced spring aphid populations.
- Taxon
- lucerneMedicago sativat0
- Treatment
- herbicide treatmente0
- Interactor
- aphide0pest
- Outcome
- aphid populationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Winter grazing and herbicide treatment significantly reduced aphid populations in spring”
t0“lucerne”
Claim · model-written summary
Insecticide trials supported pirimicarb as a selective aphicide.
- Taxon
- lucerneMedicago sativat0
- Outcome
- pirimicarb as a selective aphicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Insecticide trials confirmed the place of pirimicarb as a selective aphicide in integrated programmes”
t0“lucerne”
The same questions in other papers
grazing · pest · Medicago sativa (alfalfa)Results differ
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →herbicide · pest · Medicago sativa (alfalfa)Results differ
2 papers in the same direction as this paper · 6 in the opposite direction
- negative
- no effect
- no effect
5 papers more in this group
See all 9 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.