Abstract
SUMMARY Surveys in 1974–75 in which 20 plants were examined in each of 105 fields showed that cabbage stem weevil was widespread on spring oilseed rape in the south of England, the larvae sometimes infesting a large percentage of plants and reducing vigour and yield. In replicated field trials during 1974–77, infestations were reduced by seed treatments of gamma‐HCH or sprays of gamma‐HCH, azinphos‐methyl, azinphos‐methyl + demeton‐S‐methyl sulphone, chlorpyrifos or triazophos. In some experiments treatments significantly improved plant growth or yield, or both. Granules of carbofuran or phorate also reduced larval infestations and damage, but both thiofanox granules and dimethoate sprays were ineffective. Sprays of gamma‐HCH or azinphos‐methyl + demeton‐S‐methyl sulphone which were effective against stem weevil could also in some years give improved control of blossom beetles ( Meligethes spp.)
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Claims 15
Claim · model-written summary
Cabbage stem weevil was widespread on spring oilseed rape in southern England.
- Taxon
- spring oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Interactor
- cabbage stem weevil
Ceutorhynchus pallidactyluse0pest - Outcome
- cabbage stem weevil was widespreade0
- Setting
- south of Englande0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
t0“spring oilseed rape”
e0“cabbage stem weevil was widespread on spring oilseed rape in the south of England”
Claim · model-written summary
Cabbage stem weevil larvae sometimes infested many plants and reduced vigour and yield.
- Taxon
- spring oilseed rapeBrassica napust0
- Interactor
- cabbage stem weevilCeutorhynchus pallidactyluse1pest
- Outcome
- vigour and yielde0
- Direction
- reducinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“the larvae sometimes infesting a large percentage of plants and reducing vigour and yield”
e1“cabbage stem weevil was widespread”
Claim · model-written summary
Gamma-HCH seed treatment reduced weevil infestation.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- seed treatments of gamma‐HCHe0
- Outcome
- infestationse0
- Direction
- reducede0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“infestations were reduced by seed treatments of gamma‐HCH”
Claim · model-written summary
Gamma-HCH sprays reduced weevil infestation.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- sprays of gamma‐HCHe0
- Outcome
- infestationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“infestations were reduced by seed treatments of gamma‐HCH or sprays of gamma‐HCH, azinphos‐methyl, azinphos‐methyl + demeton‐S‐methyl sulphone, chlorpyrifos or triazophos”
Claim · model-written summary
Azinphos-methyl sprays reduced weevil infestation.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- azinphos‐methyle0
- Outcome
- infestationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“infestations were reduced by seed treatments of gamma‐HCH or sprays of gamma‐HCH, azinphos‐methyl, azinphos‐methyl + demeton‐S‐methyl sulphone, chlorpyrifos or triazophos”
Claim · model-written summary
Azinphos-methyl plus demeton-S-methyl sulphone sprays reduced infestation.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- azinphos‐methyl + demeton‐S‐methyl sulphonee0
- Outcome
- infestationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“infestations were reduced by seed treatments of gamma‐HCH or sprays of gamma‐HCH, azinphos‐methyl, azinphos‐methyl + demeton‐S‐methyl sulphone, chlorpyrifos or triazophos”
Claim · model-written summary
Chlorpyrifos sprays reduced infestation.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- chlorpyrifose0
- Outcome
- infestationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“infestations were reduced by seed treatments of gamma‐HCH or sprays of gamma‐HCH, azinphos‐methyl, azinphos‐methyl + demeton‐S‐methyl sulphone, chlorpyrifos or triazophos”
Claim · model-written summary
Triazophos sprays reduced infestation.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- triazophose0
- Outcome
- infestationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“infestations were reduced by seed treatments of gamma‐HCH or sprays of gamma‐HCH, azinphos‐methyl, azinphos‐methyl + demeton‐S‐methyl sulphone, chlorpyrifos or triazophos”
Claim · model-written summary
Some treatments significantly improved rape growth or yield.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- treatmentse0
- Outcome
- plant growth or yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“In some experiments treatments significantly improved plant growth or yield, or both”
Claim · model-written summary
Carbofuran granules reduced weevil larvae and damage.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- carbofurane0
- Outcome
- larval infestations and damagee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“Granules of carbofuran or phorate also reduced larval infestations and damage”
Claim · model-written summary
Phorate granules reduced weevil larvae and damage.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- phoratee0
- Outcome
- larval infestations and damagee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“Granules of carbofuran or phorate also reduced larval infestations and damage”
Claim · model-written summary
Thiofanox granules were ineffective.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- thiofanox granulese0
- Outcome
- ineffectivee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“both thiofanox granules and dimethoate sprays were ineffective”
Claim · model-written summary
Dimethoate sprays were ineffective.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- dimethoate sprayse0
- Outcome
- ineffectivee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“both thiofanox granules and dimethoate sprays were ineffective”
Claim · model-written summary
Effective stem weevil sprays sometimes improved blossom beetle control.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- gamma‐HCHe0
- Interactor
- blossom beetlese0pest
- Outcome
- improved control of blossom beetlese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“Sprays of gamma‐HCH or azinphos‐methyl + demeton‐S‐methyl sulphone which were effective against stem weevil could also in some years give improved control of blossom beetles ( Meligethes spp.)”
Claim · model-written summary
Azinphos-methyl plus demeton-S-methyl sulphone sometimes improved blossom beetle control.
- Taxon
- spring oilseed rapeBrassica napust0
- Treatment
- azinphos‐methyl + demeton‐S‐methyl sulphonee0
- Interactor
- blossom beetlese0pest
- Outcome
- improved control of blossom beetlese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring oilseed rape”
e0“Sprays of gamma‐HCH or azinphos‐methyl + demeton‐S‐methyl sulphone which were effective against stem weevil could also in some years give improved control of blossom beetles ( Meligethes spp.)”
The same questions in other papers
chlorpyrifos · pest · Brassica napus (oilseed rape)Results agree
1 paper in the same direction as this paper
- positive
carbofuran · pest · Brassica napus (oilseed rape)Results agree
2 papers in the same direction as this paper
- positive
- positive
application · pest · Brassica napus (oilseed rape)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →seed treatment · pest · Brassica napus (oilseed rape)Positive and negative results
7 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
7 papers more in this group
See all 11 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.