Abstract
Tests were made of the solubility of a number of copper compounds in mineral and vegetable oils. Phytocidal tests on onion foliage showed that turpentine, pine oil and white spirit were damaging whereas cottonseed oil and white oil were innocuous. Copper salts in white oil, white spirit, turpentine or pine oil showed a higher fungicidal value than in cottonseed oil. In laboratory tests, a solution of copper 3:5‐di‐ iso propyl salicylate was more fungicidal than Bordeaux mixture of the same copper concentration. In a small field trial, copper 3:5‐di‐ ios propyl salicylate dissolved in white oil to give a concentration of 0.01% Cu was atomized three times at monthly intervals on to onion foliage without damage. The same material at 0.1% Cu in white oil was phytocidal. No control of onion downy mildew ( Peronospora schleideniana ) was obtained in this trial. The method of atomization was convenient and practicable for small‐scale operation. It gave perfect wetting of the foliage and was very economical of material.
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Claims 7
Claim · model-written summary
turpentine had the stated phytocidal effect on onion foliage.
- Taxon
- onion
Allium cepae0 - Organ / stage
- foliagee0
- Treatment
- turpentinee0
- Outcome
- onion foliagee0
- Direction
- damaginge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytocidal tests on onion foliage showed that turpentine, pine oil and white spirit were damaging whereas cottonseed oil and white oil were innocuous.”
Claim · model-written summary
pine oil had the stated phytocidal effect on onion foliage.
- Taxon
- onionAllium cepae0
- Organ / stage
- foliagee0
- Treatment
- pine oile0
- Outcome
- onion foliagee0
- Direction
- damaginge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytocidal tests on onion foliage showed that turpentine, pine oil and white spirit were damaging whereas cottonseed oil and white oil were innocuous.”
Claim · model-written summary
white spirit had the stated phytocidal effect on onion foliage.
- Taxon
- onionAllium cepae0
- Organ / stage
- foliagee0
- Treatment
- white spirite0
- Outcome
- onion foliagee0
- Direction
- damaginge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytocidal tests on onion foliage showed that turpentine, pine oil and white spirit were damaging whereas cottonseed oil and white oil were innocuous.”
Claim · model-written summary
cottonseed oil had the stated phytocidal effect on onion foliage.
- Taxon
- onionAllium cepae0
- Organ / stage
- foliagee0
- Treatment
- cottonseed oile0
- Outcome
- onion foliagee0
- Direction
- innocuouse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytocidal tests on onion foliage showed that turpentine, pine oil and white spirit were damaging whereas cottonseed oil and white oil were innocuous.”
Claim · model-written summary
white oil had the stated phytocidal effect on onion foliage.
- Taxon
- onionAllium cepae0
- Organ / stage
- foliagee0
- Treatment
- white oile0
- Outcome
- onion foliagee0
- Direction
- innocuouse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytocidal tests on onion foliage showed that turpentine, pine oil and white spirit were damaging whereas cottonseed oil and white oil were innocuous.”
Claim · model-written summary
0.01% Cu application caused no onion foliage damage.
- Taxon
- onionAllium cepae0
- Treatment
- copper 3:5‐di‐ ios propyl salicylate dissolved in white oil to give a concentration of 0.01% Cue0
- Outcome
- onion foliagee0
- Direction
- without damagee0
- Setting
- field triale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a small field trial, copper 3:5‐di‐ ios propyl salicylate dissolved in white oil to give a concentration of 0.01% Cu was atomized three times at monthly intervals on to onion foliage without damage.”
Claim · model-written summary
The trial obtained no control of onion downy mildew.
- Taxon
- onionAllium cepae0
- Treatment
- this triale0
- Interactor
- Peronospora schleidenianae0pathogen
- Outcome
- onion downy mildewe0
- Direction
- No controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No control of onion downy mildew ( Peronospora schleideniana ) was obtained in this trial.”