Abstract
SUMMARY Field tests were made of the four chlorinated hydrocarbon insecticides, aldrin, dieldrin, endrin and telodrin, applied as pre‐planting root dips with a methyl cellulose sticker. None of the treatments controlled the disease as effectively as a root dip in a 10% suspension of pure calomel, but they generally caused less initial growth check, resulting in some instances in significantly higher yields at maturity. Evidence that dieldrin and endrin had greater activity against clubroot than aldrin and telodrin was obtained in glasshouse experiments. This was confirmed in laboratory tests where it was also shown that the first two chemicals either eliminated or markedly reduced root hair infection of cabbage seedlings at a concentration as low as 0.1 p.p.m.
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Claims 7
Claim · model-written summary
The four insecticide root dips controlled clubroot less effectively than a 10% calomel root dip.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Treatment
- four chlorinated hydrocarbon insecticides, aldrin, dieldrin, endrin and telodrine0
- Outcome
- controlled the diseasee1
- Direction
- None of the treatments controlled the disease as effectivelye1
- Comparator
- root dip in a 10% suspension of pure calomele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“summer cabbage”
e0“the four chlorinated hydrocarbon insecticides, aldrin, dieldrin, endrin and telodrin, applied as pre‐planting root dips with a methyl cellulose sticker”
e1“None of the treatments controlled the disease as effectively as a root dip in a 10% suspension of pure calomel”
Claim · model-written summary
The insecticide dips generally caused less initial cabbage growth check than calomel.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- treatmentse0
- Outcome
- initial growth checke0
- Direction
- lesse0
- Comparator
- root dip in a 10% suspension of pure calomele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“summer cabbage”
e0“None of the treatments controlled the disease as effectively as a root dip in a 10% suspension of pure calomel, but they generally caused less initial growth check”
Claim · model-written summary
The insecticide treatments sometimes produced significantly higher cabbage yields at maturity.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- theye0
- Outcome
- yields at maturitye0
- Direction
- highere0
- Qualifier
- in some instancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“summer cabbage”
e0“they generally caused less initial growth check, resulting in some instances in significantly higher yields at maturity.”
Claim · model-written summary
Dieldrin had greater glasshouse activity against clubroot than aldrin and telodrin.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- dieldrine0
- Outcome
- activity against clubroote0
- Direction
- greatere0
- Comparator
- aldrin and telodrine0
- Setting
- glasshousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“summer cabbage”
e0“dieldrin and endrin had greater activity against clubroot than aldrin and telodrin was obtained in glasshouse experiments.”
Claim · model-written summary
Endrin had greater glasshouse activity against clubroot than aldrin and telodrin.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- endrine0
- Outcome
- activity against clubroote0
- Direction
- greatere0
- Comparator
- aldrin and telodrine0
- Setting
- glasshousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“summer cabbage”
e0“dieldrin and endrin had greater activity against clubroot than aldrin and telodrin was obtained in glasshouse experiments.”
Claim · model-written summary
Dieldrin at 0.1 p.p.m. eliminated or markedly reduced cabbage seedling root hair infection.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- dieldrine1
- Outcome
- root hair infection of cabbage seedlingse0
- Direction
- eliminated or markedly reducede0
- Value
- 0.1 p.p.m.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“summer cabbage”
e0“the first two chemicals either eliminated or markedly reduced root hair infection of cabbage seedlings at a concentration as low as 0.1 p.p.m.”
e1“dieldrin and endrin had greater activity against clubroot”
Claim · model-written summary
Endrin at 0.1 p.p.m. eliminated or markedly reduced cabbage seedling root hair infection.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- endrine1
- Outcome
- root hair infection of cabbage seedlingse0
- Direction
- eliminated or markedly reducede0
- Value
- 0.1 p.p.m.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“summer cabbage”
e0“the first two chemicals either eliminated or markedly reduced root hair infection of cabbage seedlings at a concentration as low as 0.1 p.p.m.”
e1“dieldrin and endrin had greater activity against clubroot”
The same questions in other papers
endrin · control · Brassica oleracea (wild cabbage)Positive and negative results
1 in the opposite direction
- positive
aldrin · control · Brassica oleracea (wild cabbage)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
insecticide · control · Brassica oleracea (wild cabbage)Positive and negative results
1 paper in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
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.