Abstract
The direct toxicity of three essential oils to females of the two spotted spider mite, Tetranychus urticae Koch, was tested in the laboratory. Wheat germ oil (Triticum vulgare Vill) was the most toxic essential oil to females of T. urticae, while clove oil (Eugenia caryophyllata Thumberg) was the least toxic one (LC50=0.995 and 2.82%, LC90=3.08 and 16.66%), respectively. Leaf discs treated with increasing concentrations of eucalyptus (Eucalyptus glabulus Labill.) and wheat germ oils showed a high percentage of repellency (90–100%), respectively. The oviposition deterrent indices (ODI) of eucalyptus and wheat germ oils were ranged (22–100) for T. urticae at concentration (1–4%), while this value was between (5–35%) in case of clove oil at the same above concentrations. Females of T. urticae suffered a significantly depression in reproduction when fed on painted kidney bean leaves with (1–4%) concentrations of each oil used in our studies. In contrast, at 0.25 and 0.5% concentrations, no significant differences was recorded between the total number of eggs deposited on treated leaves and control ones. Also, a high percentage of T. urticae mortality was recorded for wheat germ and clove oils during 10 days.
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Claims 9
Claim · model-written summary
Wheat germ oil was most toxic to female spider mites.
- Taxon
- kidney bean
Phaseolus vulgarise1 - Treatment
- Wheat germ oile0
- Interactor
- T. urticae
.jpg?width=60)
Tetranychus urticaee0pest - Outcome
- toxic essential oil to females of T. urticaee0
- Direction
- most toxice0
- Value
- 0.995e0
- Comparator
- clove oile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Wheat germ oil (Triticum vulgare Vill) was the most toxic essential oil to females of T. urticae, while clove oil (Eugenia caryophyllata Thumberg) was the least toxic one (LC50=0.995 and 2.82%, LC90=3.08 and 16.66%), respectively.”
e1“kidney bean leaves”
Claim · model-written summary
Clove oil was least toxic to female spider mites.
- Taxon
- kidney beanPhaseolus vulgarise1
- Treatment
- clove oile0
- Interactor
- T. urticaeTetranychus urticaee0pest
- Outcome
- toxic onee0
- Direction
- least toxice0
- Value
- 2.82%e0
- Comparator
- Wheat germ oile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat germ oil (Triticum vulgare Vill) was the most toxic essential oil to females of T. urticae, while clove oil (Eugenia caryophyllata Thumberg) was the least toxic one (LC50=0.995 and 2.82%, LC90=3.08 and 16.66%), respectively.”
e1“kidney bean leaves”
Claim · model-written summary
Eucalyptus oil deterred mite oviposition, with ODI 22–100.
- Taxon
- kidney beanPhaseolus vulgarise1
- Treatment
- eucalyptuse0
- Interactor
- T. urticaeTetranychus urticaee0pest
- Outcome
- oviposition deterrent indices (ODI)e0
- Value
- 22–100e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oviposition deterrent indices (ODI) of eucalyptus and wheat germ oils were ranged (22–100) for T. urticae at concentration (1–4%), while this value was between (5–35%) in case of clove oil at the same above concentrations.”
e1“kidney bean leaves”
Claim · model-written summary
Wheat germ oil deterred mite oviposition, with ODI 22–100.
- Taxon
- kidney beanPhaseolus vulgarise1
- Treatment
- wheat germ oilse0
- Interactor
- T. urticaeTetranychus urticaee0pest
- Outcome
- oviposition deterrent indices (ODI)e0
- Value
- 22–100e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oviposition deterrent indices (ODI) of eucalyptus and wheat germ oils were ranged (22–100) for T. urticae at concentration (1–4%), while this value was between (5–35%) in case of clove oil at the same above concentrations.”
e1“kidney bean leaves”
Claim · model-written summary
Clove oil had mite oviposition deterrent values of 5–35%.
- Taxon
- kidney beanPhaseolus vulgarise1
- Treatment
- clove oile0
- Interactor
- T. urticaeTetranychus urticaee2pest
- Outcome
- this valuee0
- Value
- 5–35%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this value was between (5–35%) in case of clove oil at the same above concentrations.”
e1“kidney bean leaves”
e2“for T. urticae at concentration (1–4%)”
Claim · model-written summary
Each oil at 1–4% significantly depressed mite reproduction on kidney bean leaves.
- Taxon
- kidney beanPhaseolus vulgarise0
- Treatment
- each oile0
- Interactor
- T. urticaeTetranychus urticaee0pest
- Outcome
- T. urticae suffered a significantly depression in reproductione0
- Direction
- depressione0
- Value
- 1–4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Females of T. urticae suffered a significantly depression in reproduction when fed on painted kidney bean leaves with (1–4%) concentrations of each oil used in our studies.”
Claim · model-written summary
At 0.25 and 0.5%, egg numbers did not significantly differ from controls.
- Taxon
- kidney beanPhaseolus vulgarise1
- Treatment
- 0.25 and 0.5% concentrationse0
- Interactor
- T. urticaeTetranychus urticaee2pest
- Outcome
- total number of eggs deposited on treated leavese0
- Direction
- no significant differencese0
- Comparator
- control onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 0.25 and 0.5% concentrations, no significant differences was recorded between the total number of eggs deposited on treated leaves and control ones.”
e1“kidney bean leaves”
e2“Females of T. urticae suffered a significantly depression in reproduction”
Claim · model-written summary
Wheat germ oil caused high mite mortality over 10 days.
- Taxon
- kidney beanPhaseolus vulgarise1
- Treatment
- wheat germe0
- Interactor
- T. urticaeTetranychus urticaee0pest
- Outcome
- T. urticae mortalitye0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a high percentage of T. urticae mortality was recorded for wheat germ and clove oils during 10 days.”
e1“kidney bean leaves”
Claim · model-written summary
Clove oil caused high mite mortality over 10 days.
- Taxon
- kidney beanPhaseolus vulgarise1
- Treatment
- clove oilse0
- Interactor
- T. urticaeTetranychus urticaee0pest
- Outcome
- T. urticae mortalitye0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a high percentage of T. urticae mortality was recorded for wheat germ and clove oils during 10 days.”
e1“kidney bean leaves”
The same questions in other papers
Syzygium aromaticum · Tetranychus urticae · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- 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.