Abstract
SUMMARY Six trials were carried out in Gloucestershire and Wiltshire on the control of Cavariella aegopodii Scop, on carrots between 1961 and 1964. The results of these trials are given and discussed. In each year, except 1962, the first alatae occurred on carrots during May and built up to a peak in June or early July. April sowings of carrots were more subject to attack than May sowings whereas June sowings mainly escaped attack altogether. Two to four sprays of demeton‐methyl and a single spray of demeton‐methyl plus a later spray of menazon gave effective aphid control. Granular apPl.ications of disulfoton and of menazon used as a top‐dressing to seedling carrots also gave good control, though their initial action was slower than with the spray treatments. Menazon granules applied below the seed gave good aphid control, but produced no corresponding yield increase. In 1962, aphid infestations were much later building up, with the first alatae only appearing on the crop in mid‐June. Consequently, early sprays of demeton‐methyl and menazon applied on 1 June were ineffective, so that the combined results of the two sprays gave poorer control than in other years. Carrot motley dwarf was only present to a small degree and so was unlikely to have any effect on yield.
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Claims 12
Claim · model-written summary
Carrot aphid alatae first occurred in May and peaked in June or early July except in 1962.
- Taxon
- carrots
Daucus carotae0 - Interactor
- alataee0pest
- Outcome
- first alatae occurred on carrots during May and built up to a peak in June or early Julye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In each year, except 1962, the first alatae occurred on carrots during May and built up to a peak in June or early July”
Claim · model-written summary
April sowings had more aphid attack than May sowings.
- Taxon
- carrotsDaucus carotae0
- Treatment
- April sowingse0
- Outcome
- attacke0
- Direction
- moree0
- Comparator
- May sowingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“April sowings of carrots were more subject to attack than May sowings”
Claim · model-written summary
June sowings mainly escaped aphid attack.
- Taxon
- CarrotDaucus carotat0
- Outcome
- escaped attack altogethere0
- Qualifier
- June sowingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“June sowings mainly escaped attack altogether”
t0“Carrot”
Claim · model-written summary
Two to four demeton-methyl sprays controlled aphids effectively.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Two to four sprays of demeton‐methyle0
- Outcome
- aphid controle0
- Direction
- effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two to four sprays of demeton‐methyl and a single spray of demeton‐methyl plus a later spray of menazon gave effective aphid control”
t0“Carrot”
Claim · model-written summary
A demeton-methyl spray followed by menazon controlled aphids effectively.
- Taxon
- CarrotDaucus carotat0
- Treatment
- a single spray of demeton‐methyl plus a later spray of menazone0
- Outcome
- aphid controle0
- Direction
- effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a single spray of demeton‐methyl plus a later spray of menazon gave effective aphid control”
t0“Carrot”
Claim · model-written summary
Disulfoton top dressing controlled aphids, with slower initial action than sprays.
- Taxon
- carrotsDaucus carotae0
- Treatment
- disulfotone0
- Outcome
- controle0
- Direction
- goode0
- Qualifier
- initial action was slowere0
- Comparator
- spray treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Granular apPl.ications of disulfoton and of menazon used as a top‐dressing to seedling carrots also gave good control, though their initial action was slower than with the spray treatments”
Claim · model-written summary
Menazon top dressing controlled aphids, with slower initial action than sprays.
- Taxon
- carrotsDaucus carotae0
- Treatment
- menazone0
- Outcome
- controle0
- Direction
- goode0
- Qualifier
- initial action was slowere0
- Comparator
- spray treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Granular apPl.ications of disulfoton and of menazon used as a top‐dressing to seedling carrots also gave good control, though their initial action was slower than with the spray treatments”
Claim · model-written summary
Menazon granules below seed controlled aphids.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Menazon granules applied below the seede0
- Outcome
- aphid controle0
- Direction
- goode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Menazon granules applied below the seed gave good aphid control”
t0“Carrot”
Claim · model-written summary
Menazon granules below seed did not increase yield.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Menazon granules applied below the seede0
- Outcome
- yielde0
- Direction
- no corresponding yield increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Menazon granules applied below the seed gave good aphid control, but produced no corresponding yield increase”
t0“Carrot”
Claim · model-written summary
In 1962 first alatae appeared in mid-June.
- Taxon
- CarrotDaucus carotat0
- Outcome
- first alatae only appearing on the crop in mid‐Junee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1962, aphid infestations were much later building up, with the first alatae only appearing on the crop in mid‐June”
t0“Carrot”
Claim · model-written summary
Early demeton-methyl and menazon sprays in 1962 were ineffective and gave poorer control than in other years.
- Taxon
- CarrotDaucus carotat0
- Treatment
- early sprays of demeton‐methyl and menazon applied on 1 Junee0
- Outcome
- controle0
- Direction
- poorere0
- Comparator
- other yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early sprays of demeton‐methyl and menazon applied on 1 June were ineffective, so that the combined results of the two sprays gave poorer control than in other years”
t0“Carrot”
Claim · model-written summary
Carrot motley dwarf was present only to a small degree.
- Taxon
- CarrotDaucus carotae0
- Outcome
- Carrot motley dwarfe0
- Qualifier
- only present to a small degreee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carrot motley dwarf was only present to a small degree”
The same questions in other papers
application · control · Daucus carota (carrot)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 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.