Abstract
Insecticides were evaluated to determine their ovicidal activity against rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath. Carbofuran, methyl parathion, and triazophos were ovicidal as foliar sprays and carbofuran, diazinon, metalkamate, and triazophos were ovicidal as paddy-water applications of granules in insectary Studies. In a field study, only triazophos as a foliar spray provided significant ovicidal activity against N. lugens. Eggs of S. furcifera were more susceptible to insecticides than N. lugens. Ovicidal activity was dependent on age of egg at the time of insecticide application and on insecticide concentration.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
Carbofuran was ovicidal as a foliar spray in insectary tests.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Carbofurane0
- Interactor
- Nilaparvata lugens
Nilaparvata lugense1pest - Outcome
- ovicidale0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“Carbofuran, methyl parathion, and triazophos were ovicidal as foliar sprays”
e1“rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath”
Claim · model-written summary
methyl parathion was ovicidal as a foliar spray in insectary tests.
- Taxon
- Rice
Oryza sativat0
- Treatment
- methyl parathione0
- Interactor
- Nilaparvata lugens
Nilaparvata lugense1pest - Outcome
- ovicidale0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“Carbofuran, methyl parathion, and triazophos were ovicidal as foliar sprays”
e1“rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath”
Claim · model-written summary
triazophos was ovicidal as a foliar spray in insectary tests.
- Taxon
- Rice
Oryza sativat0
- Treatment
- triazophose0
- Interactor
- Nilaparvata lugens
Nilaparvata lugense1pest - Outcome
- ovicidale0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“Carbofuran, methyl parathion, and triazophos were ovicidal as foliar sprays”
e1“rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath”
Claim · model-written summary
carbofuran granules were ovicidal as paddy-water applications in insectary tests.
- Taxon
- Rice
Oryza sativat0
- Treatment
- carbofurane0
- Interactor
- Nilaparvata lugens
Nilaparvata lugense1pest - Outcome
- ovicidale0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“carbofuran, diazinon, metalkamate, and triazophos were ovicidal as paddy-water applications of granules in insectary Studies.”
e1“rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath”
Claim · model-written summary
diazinon granules were ovicidal as paddy-water applications in insectary tests.
- Taxon
- Rice
Oryza sativat0
- Treatment
- diazinone0
- Interactor
- Nilaparvata lugens
Nilaparvata lugense1pest - Outcome
- ovicidale0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“carbofuran, diazinon, metalkamate, and triazophos were ovicidal as paddy-water applications of granules in insectary Studies.”
e1“rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath”
Claim · model-written summary
metalkamate granules were ovicidal as paddy-water applications in insectary tests.
- Taxon
- Rice
Oryza sativat0
- Treatment
- metalkamatee0
- Interactor
- Nilaparvata lugens
Nilaparvata lugense1pest - Outcome
- ovicidale0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“carbofuran, diazinon, metalkamate, and triazophos were ovicidal as paddy-water applications of granules in insectary Studies.”
e1“rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath”
Claim · model-written summary
triazophos granules were ovicidal as paddy-water applications in insectary tests.
- Taxon
- Rice
Oryza sativat0
- Treatment
- triazophose0
- Interactor
- Nilaparvata lugens
Nilaparvata lugense1pest - Outcome
- ovicidale0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“carbofuran, diazinon, metalkamate, and triazophos were ovicidal as paddy-water applications of granules in insectary Studies.”
e1“rice feeding planthoppes, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath”
Claim · model-written summary
Only triazophos foliar spray showed significant ovicidal activity against N. lugens in the field.
- Taxon
- Rice
Oryza sativat0
- Treatment
- triazophos as a foliar spraye0
- Interactor
- N. lugens
Nilaparvata lugense0pest - Outcome
- ovicidal activitye0
- Setting
- field studye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“on Rice”
e0“In a field study, only triazophos as a foliar spray provided significant ovicidal activity against N. lugens.”
Claim · model-written summary
S. furcifera eggs were more insecticide susceptible than N. lugens eggs.
- Taxon
- Rice
Oryza sativat0
- Interactor
- S. furciferaSogatella furciferae0pest
- Outcome
- Eggs of S. furcifera were more susceptible to insecticidese0
- Direction
- more susceptiblee0
- Comparator
- N. lugense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Rice”
e0“Eggs of S. furcifera were more susceptible to insecticides than N. lugens.”
Claim · model-written summary
Ovicidal activity depended on egg age at application.
- Taxon
- Rice
Oryza sativat0
- Treatment
- insecticide applicatione0
- Outcome
- Ovicidal activitye0
- Qualifier
- age of egg at the time of insecticide applicatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Rice”
e0“Ovicidal activity was dependent on age of egg at the time of insecticide application and on insecticide concentration.”
Claim · model-written summary
Ovicidal activity depended on insecticide concentration.
- Taxon
- Rice
Oryza sativat0
- Treatment
- insecticide concentratione0
- Outcome
- Ovicidal activitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Rice”
e0“Ovicidal activity was dependent on age of egg at the time of insecticide application and on insecticide concentration.”
The same questions in other papers
triazophos · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- negative
parathion-methyl · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results
2 in the opposite direction
- negative
- negative
diazinon · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results
4 in the opposite direction
- negative
- negative
- negative
1 paper more in this group
See all 5 papers →carbofuran · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →application · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results
10 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
8 papers more in this group
See all 12 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.