Abstract
Commercial tobacco dusts vary greatly in nicotine content and physical properties, the finer dusts killing a larger percentage of the spirea aphis, the currant aphis and the apple red bug. Rosy aphis was combated effectively with either nicotine sulphate or tobacco dust in lime sulphur and glue sulphur sprays. Considerable trouble was encountered with certain types of spraying machines from clogging of the nozzles and strainers. Pumps with poppet valves and rather coarse strainers gave less trouble. Fine tobacco dust undiluted or with 10 percent of lime hydrate showed marked toxicity. The insecticidal properties of tobacco dust, on an average were not uniformly as high as that of dust mixtures containing nicotine sulphate. The concentrated tobacco solution5 are apparently more economical than powdered tobacco.
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Claims 10
Claim · model-written summary
Finer tobacco dust killed a larger percentage of spirea aphis.
- Taxon
- spireae0
- Treatment
- finer dustse0
- Interactor
- spirea aphise0pest
- Outcome
- percentage of the spirea aphise0
- Direction
- largere0
Not reportedComparator
Verbatim
t0“Tobacco Dust”
e0“the finer dusts killing a larger percentage of the spirea aphis”
Claim · model-written summary
Finer tobacco dust killed a larger percentage of currant aphis.
- Taxon
- currante0
- Treatment
- finer dustse0
- Interactor
- currant aphise0pest
- Outcome
- currant aphise0
- Direction
- largere0
Not reportedComparator
Verbatim
e0“the finer dusts killing a larger percentage of the spirea aphis, the currant aphis and the apple red bug”
Claim · model-written summary
Finer tobacco dust killed a larger percentage of apple red bug.
- Taxon
- apple
Malus domesticae0 - Treatment
- finer dustse0
- Interactor
- apple red buge0pest
- Outcome
- apple red buge0
- Direction
- largere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the finer dusts killing a larger percentage of the spirea aphis, the currant aphis and the apple red bug”
Claim · model-written summary
Nicotine sulphate in lime sulphur and glue sulphur sprays effectively controlled rosy aphis.
Not reportedTaxonComparatorDirection
Verbatim
e0“Rosy aphis was combated effectively with either nicotine sulphate or tobacco dust in lime sulphur and glue sulphur sprays.”
Claim · model-written summary
Tobacco dust in lime sulphur and glue sulphur sprays effectively controlled rosy aphis.
- Treatment
- tobacco dust in lime sulphur and glue sulphur sprayse0
- Interactor
- Rosy aphise0pest
- Outcome
- Rosy aphis was combated effectivelye0
Not reportedTaxonComparatorDirection
Verbatim
e0“Rosy aphis was combated effectively with either nicotine sulphate or tobacco dust in lime sulphur and glue sulphur sprays.”
Claim · model-written summary
Fine tobacco dust, undiluted, showed marked toxicity.
Not reportedTaxon
Verbatim
e0“Fine tobacco dust undiluted or with 10 percent of lime hydrate showed marked toxicity.”
Claim · model-written summary
Fine tobacco dust with 10 percent lime hydrate showed marked toxicity.
Not reportedTaxon
Verbatim
e0“Fine tobacco dust undiluted or with 10 percent of lime hydrate showed marked toxicity.”
Claim · model-written summary
Tobacco dust had less uniform insecticidal properties than dust mixtures containing nicotine sulphate.
- Outcome
- insecticidal properties of tobacco duste0
- Direction
- not uniformly as highe0
- Comparator
- dust mixtures containing nicotine sulphatee0
Not reportedTaxon
Verbatim
e0“The insecticidal properties of tobacco dust, on an average were not uniformly as high as that of dust mixtures containing nicotine sulphate.”
Claim · model-written summary
Concentrated tobacco solutions were apparently more economical than powdered tobacco.
Not reportedTaxon
Verbatim
e0“The concentrated tobacco solution5 are apparently more economical than powdered tobacco.”
Claim · model-written summary
Pumps with poppet valves and coarse strainers had less clogging trouble.
Not reportedTaxon
Verbatim
e0“Pumps with poppet valves and rather coarse strainers gave less trouble.”