Abstract
This study was conducted during 1983-1987 to determine influence of late fall cutting and winter grazing in combination with control of cool-season weeds on egg deposition and seasonal occurrence of peak larval populations of the alfalfa weevil, Hypera postica (Gyllenhal), in Oklahoma. Alfalfaweevil egg numbers were reduced by an average of 55% by late fall cutting and 67% by grazing in winter by cattle compared with the ungrazed treatment. However, peak larval numbers were not lower due to fall cutting and were reduced by an average of just 25% with grazing. Numbers decreased least in years when the majority of eggs were laid in late winter rather than fall or early winter. There seems to be potential to delay occurrence of peak larval numbers up to 10 d by grazing if most eggs are laid in fall or early winter. Larval numbers per stem changed little with changing stem densities and the extent of weed infestation. As a consequence, larval numbers per 0.1 m2 tended to be higher with greater stem densities in treatment combinations that promoted stand longevity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Late fall cutting reduced alfalfa weevil egg numbers by an average of 55%.
- Taxon
- Alfalfa
Medicago sativat0 - Treatment
- late fall cuttinge0
- Interactor
- Alfalfaweevil
Hypera posticae0pest - Outcome
- Alfalfaweevil egg numberse0
- Direction
- reducede0
- Value
- 55%e0
- Comparator
- ungrazed treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfaweevil egg numbers were reduced by an average of 55% by late fall cutting and 67% by grazing in winter by cattle compared with the ungrazed treatment.”
t0“Alfalfa”
Claim · model-written summary
Winter cattle grazing reduced alfalfa weevil egg numbers by an average of 67% against ungrazed treatment.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- grazing in winter by cattlee0
- Interactor
- AlfalfaweevilHypera posticae0pest
- Outcome
- Alfalfaweevil egg numberse0
- Direction
- reducede0
- Value
- 67%e0
- Comparator
- ungrazed treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfaweevil egg numbers were reduced by an average of 55% by late fall cutting and 67% by grazing in winter by cattle compared with the ungrazed treatment.”
t0“Alfalfa”
Claim · model-written summary
Fall cutting did not lower peak alfalfa weevil larval numbers.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- fall cuttinge0
- Outcome
- peak larval numberse0
- Direction
- not lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peak larval numbers were not lower due to fall cutting and were reduced by an average of just 25% with grazing.”
t0“Alfalfa”
Claim · model-written summary
Grazing reduced peak alfalfa weevil larval numbers by an average of 25%.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- grazinge0
- Outcome
- peak larval numberse0
- Direction
- reducede0
- Value
- 25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peak larval numbers were not lower due to fall cutting and were reduced by an average of just 25% with grazing.”
t0“Alfalfa”
Claim · model-written summary
Larval numbers declined least when most eggs were laid in late winter.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- Numberse0
- Direction
- decreased leaste0
- Qualifier
- majority of eggs were laid in late wintere0
- Comparator
- fall or early wintere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Numbers decreased least in years when the majority of eggs were laid in late winter rather than fall or early winter.”
t0“Alfalfa”
Claim · model-written summary
Grazing may delay peak larval numbers up to 10 days when most eggs are laid in fall or early winter.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- grazinge0
- Outcome
- occurrence of peak larval numberse0
- Direction
- delaye0
- Value
- 10 de0
- Qualifier
- if most eggs are laid in fall or early wintere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There seems to be potential to delay occurrence of peak larval numbers up to 10 d by grazing if most eggs are laid in fall or early winter.”
t0“Alfalfa”
Claim · model-written summary
Larval numbers per stem changed little with stem density and weed infestation.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- steme0
- Outcome
- Larval numbers per steme0
- Direction
- changed littlee0
- Qualifier
- changing stem densities and the extent of weed infestatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Larval numbers per stem changed little with changing stem densities and the extent of weed infestation.”
t0“Alfalfa”
Claim · model-written summary
Larval numbers per area tended to be higher at greater stem densities in treatments promoting stand longevity.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- steme0
- Outcome
- larval numbers per 0.1 m2e0
- Direction
- highere0
- Value
- 0.1 m2e0
- Qualifier
- treatment combinations that promoted stand longevitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“larval numbers per 0.1 m2 tended to be higher with greater stem densities in treatment combinations that promoted stand longevity.”
t0“Alfalfa”
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 →pruning · Hypera postica · Medicago sativa (alfalfa)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
1 paper more in this group
See all 5 papers →pruning · pest · Medicago sativa (alfalfa)Positive and negative results
4 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →grazing · Hypera postica · Medicago sativa (alfalfa)Results agree
2 papers in the same direction as this paper
- positive
- 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.