Abstract
Abstract A field experiment was used to assess the effectiveness of different barriers in protecting garden‐scale carrot production from carrot fly ( Psila rosae (Fabricius)) damage. Some of the vertical barriers tested were found to provide a useful method of protecting early season carrots from carrot fly in terms of the percentage of carrots free from damage but, under cumulative pest pressure of several generations of carrot fly, such barriers were found to provide insufficient protection. Gardeners should therefore completely cover their carrot crop to attain an acceptable level of control, and this was found to be especially important for carrots harvested later in the season. There were positive effects of some barrier types on yield which may be due, at least in part, to the protection given by the barriers to carrot seedlings.
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Claims 4
Claim · model-written summary
Some vertical barriers protected early season carrots from carrot fly damage.
- Taxon
- carrots
Daucus carotae0 - Treatment
- vertical barrierse0
- Interactor
- carrot fly
Chamaepsila rosaee0pest - Outcome
- percentage of carrots free from damagee0
- Direction
- protectinge0
- Qualifier
- early seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some of the vertical barriers tested were found to provide a useful method of protecting early season carrots from carrot fly in terms of the percentage of carrots free from damage”
t0“carrot fly (Psila rosae (Fabricius)) damage in domestic production”
Claim · model-written summary
Vertical barriers offered insufficient protection across several carrot fly generations.
- Taxon
- carrotDaucus carotat0
- Treatment
- barrierse0
- Interactor
- carrot flyChamaepsila rosaee0pest
- Outcome
- insufficient protectione0
- Qualifier
- under cumulative pest pressure of several generations of carrot flye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under cumulative pest pressure of several generations of carrot fly, such barriers were found to provide insufficient protection”
t0“carrot fly (Psila rosae (Fabricius)) damage in domestic production”
Claim · model-written summary
Gardeners should completely cover carrots, especially for late harvest, to control carrot fly.
- Taxon
- carrotDaucus carotae0
- Outcome
- completely cover their carrot crope0
- Qualifier
- carrots harvested later in the seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gardeners should therefore completely cover their carrot crop to attain an acceptable level of control, and this was found to be especially important for carrots harvested later in the season.”
Claim · model-written summary
Some barrier types increased carrot yield.
- Taxon
- carrotDaucus carotat0
- Treatment
- some barrier typese0
- Outcome
- yielde0
- Direction
- positive effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were positive effects of some barrier types on yield”
t0“carrot fly (Psila rosae (Fabricius)) damage in domestic production”
The same questions in other papers
trap barrier · Chamaepsila rosae · Daucus carota (carrot)Results agree
2 papers in the same direction as this paper
- positive
- positive
trap barrier · yield · Daucus carota (carrot)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.