Evaluation of Insecticide Rotations Against Rice Brown Planthopper nilaparvata lugens (Stal)

Abstract

Field experiments were carried out to evaluate the efficacy of certain insecticide rotations against rice brown planthopper (BPH) Nilaparvata lugens (Stal) at the Regional Agricultural Research Station, Maruteru, Andhra Pradesh during kharif 2017 and rabi 2017-18. The results revealed that fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha), buprofezin (800 ml/ha) followed by pymetrozine (300 g/ha) and acephate (750 g/ha) followed by pymetrozine (300 g/ha) were the most effective insecticide rotations in a crop season. These also gave higher grain yields. The insecticide rotations , acephate (750 g/ha) followed by pymetrozine (300 g/ha) and fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha) gave the maximum cost benefit ratio of 1: 6.01 and 1: 6.03, respectively.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fipronil followed by pymetrozine was among the most effective rotations.

Taxon: riceOryza sativat0
Treatment: fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha)e0
Interactor: nilaparvata lugensNilaparvata lugenst0pest
Outcome: most effective insecticide rotationse0
Direction: most effectivee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

*Oryza sativa* · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

*Nilaparvata lugens* · InteractorNatasha Wright, Florida Department of Agriculture and Consumer Services, Bugwood.org - See more at: http://www.forestryimages.org/browse/detail.cfm?imgnum=51900 · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0
“The results revealed that fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha), buprofezin (800 ml/ha) followed by pymetrozine (300 g/ha) and acephate (750 g/ha) followed by pymetrozine (300 g/ha) were the most effective insecticide rotations in a crop season.”
✓ located verbatim in the source · abstract, characters 265–529 · show in text ↑

t0
“Rice Brown Planthopper nilaparvata lugens”
✓ located verbatim in the source · title, characters 44–85 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Buprofezin followed by pymetrozine was among the most effective rotations.

Taxon: riceOryza sativat0
Treatment: buprofezin (800 ml/ha) followed by pymetrozine (300 g/ha)e0
Interactor: nilaparvata lugensNilaparvata lugenst0pest
Outcome: most effective insecticide rotationse0
Direction: most effectivee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e0
“The results revealed that fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha), buprofezin (800 ml/ha) followed by pymetrozine (300 g/ha) and acephate (750 g/ha) followed by pymetrozine (300 g/ha) were the most effective insecticide rotations in a crop season.”
✓ located verbatim in the source · abstract, characters 265–529 · show in text ↑

t0
“Rice Brown Planthopper nilaparvata lugens”
✓ located verbatim in the source · title, characters 44–85 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Acephate followed by pymetrozine was among the most effective rotations.

Taxon: riceOryza sativat0
Treatment: acephate (750 g/ha) followed by pymetrozine (300 g/ha)e0
Interactor: nilaparvata lugensNilaparvata lugenst0pest
Outcome: most effective insecticide rotationse0
Direction: most effectivee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e0
“The results revealed that fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha), buprofezin (800 ml/ha) followed by pymetrozine (300 g/ha) and acephate (750 g/ha) followed by pymetrozine (300 g/ha) were the most effective insecticide rotations in a crop season.”
✓ located verbatim in the source · abstract, characters 265–529 · show in text ↑

t0
“Rice Brown Planthopper nilaparvata lugens”
✓ located verbatim in the source · title, characters 44–85 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The three effective rotations gave higher grain yields.

Taxon: riceOryza sativat0
Treatment: insecticide rotationst1
Outcome: grain yieldse0
Direction: highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e0
“These also gave higher grain yields.”
✓ located verbatim in the source · abstract, characters 530–566 · show in text ↑

t0
“Rice Brown Planthopper”
✓ located verbatim in the source · title, characters 44–66 · show in text ↑

t1
“The insecticide rotations”
✓ located verbatim in the source · abstract, characters 567–592 · show in text ↑

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Acephate followed by pymetrozine had a maximum cost benefit ratio of 1: 6.01.

Taxon: riceOryza sativat0
Treatment: acephate (750 g/ha) followed by pymetrozine (300 g/ha)e0
Outcome: cost benefit ratioe0
Direction: maximume0
Value: 1: 6.01e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e0
“The insecticide rotations, acephate (750 g/ha) followed by pymetrozine (300 g/ha) and fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha) gave the maximum cost benefit ratio of 1: 6.01 and 1: 6.03, respectively.”
✓ located verbatim in the source · abstract, characters 567–783 · show in text ↑

t0
“Rice Brown Planthopper”
✓ located verbatim in the source · title, characters 44–66 · show in text ↑

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Fipronil followed by pymetrozine had a maximum cost benefit ratio of 1: 6.03.

Taxon: riceOryza sativat0
Treatment: fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha)e0
Outcome: cost benefit ratioe0
Direction: maximume0
Value: 1: 6.03e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e0
“The insecticide rotations, acephate (750 g/ha) followed by pymetrozine (300 g/ha) and fipronil (1000 ml/ha) followed by pymetrozine (300 g/ha) gave the maximum cost benefit ratio of 1: 6.01 and 1: 6.03, respectively.”
✓ located verbatim in the source · abstract, characters 567–783 · show in text ↑

t0
“Rice Brown Planthopper”
✓ located verbatim in the source · title, characters 44–66 · show in text ↑

acephate · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

3 papers in the same direction as this paper · 2 in the opposite direction

negative
Eight named insecticides produced higher planthopper resurgence ratios than six comparators at recommended dose.
Factor Influencing the Resurgence of Brown Planthopper in Bangladesh · 2020 · compared with imidacloprid, cartap, dinotefuran, isoprocarb /MIPC, phenthoate, pymetrozine
Opposite direction
no effect
Acephate 75% SP recorded no resurgence effect on brown planthopper on rice.
IMPACT OF INSECTICIDE-INDUCED RESURGENCE ON BROWN PLANTHOPPER, NILAPARVATA LUGENS (STÅL) IN RICE · 2025
Opposite direction
positive
Acephate followed with 85.60 BPH reduction.
Evaluation of insecticides against brown plant hopper, Nilaparvata lugens (Stal) in rice, Oryza sativa L. · 2020 · compared with control
Same direction

2 papers more in this group

See all 6 papers →

fipronil · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this paper · 1 in the opposite direction

no effect
Fipronil 5% SC recorded no resurgence effect on brown planthopper on rice.
IMPACT OF INSECTICIDE-INDUCED RESURGENCE ON BROWN PLANTHOPPER, NILAPARVATA LUGENS (STÅL) IN RICE · 2025
Opposite direction
positive
Fipronil + imidacloprid 80 WG controlled Nilaparvata lugens infestation most effectively and was significantly superior to all other treatments, with 8.42 hill-1.
Bio-efficacy of granular insecticides against Nilaparvata lugens (Stal.) in Rice under field condition · 2015 · compared with all other treatments
Same direction
positive
Fipronil 200 SC at 50 g a.i./ha was the most effective insecticide against Nilaparvata lugens in rice, significantly superior to all other treatments, with 80.50 per cent on the grain yield increase over control.
Bioefficacy of Phenyl Pyrazole against Brown Planthopper, Nilaparvata lugens in Rice · 2014 · compared with control
Same direction

5 papers more in this group

See all 9 papers →

pymetrozine · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results

14 papers: 12 positive, 2 negative or no effect

11 papers in the same direction as this paper · 2 in the opposite direction

negative
Pymetrozine increased resistant planthopper probing on rice seedlings.
Feeding Behaviour of Pymetrozine-resistant and Susceptible Strains of Brown Planthopper Nilaparvata lugens (Stal) · 2025 · compared with untreated seedlings
Opposite direction
no effect
Pymetrozine 50% WG recorded no resurgence effect on brown planthopper on rice.
IMPACT OF INSECTICIDE-INDUCED RESURGENCE ON BROWN PLANTHOPPER, NILAPARVATA LUGENS (STÅL) IN RICE · 2025
Opposite direction
positive
Pymetrozine produced significantly greater hopper reduction than other treatments.
Evaluation of Some Insecticides Against Brown Plant Hopper, Nilaparvata lugens (Stal) in Rice, Oryza sativa L. · 2017 · compared with other treatments
Same direction

10 papers more in this group

See all 14 papers →

buprofezin · Nilaparvata lugens · Oryza sativa (rice)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

positive
At 250 ppm buprofezin, next generation nymphs fell to 0-6% of control.
Studies on the Mode of Action of Buprofezin II. Effects on Reproduction of the Brown Planthopper, Nilaparvata lugens STAL (Homoptera : Delphacidae) · 1985 · compared with control
Same direction
positive
Buprofezin 25 SC gave the lowest brown planthopper population of 3.60 per hill at 10 days after spray in the second year.
Efficacy of different insecticides against brown planthopper, Nilaparvata lugens (Stål) in rice · 2020 · compared with different insecticides
Same direction
positive
The combination reduced brown plant hopper population by 17.9 per cent at 70 days compared with monocrotophos.
Efficacy of a New Insecticide Combination Against Major Pests of Paddy · 2012 · compared with check insecticide
Same direction

4 papers more in this group

See all 8 papers →

insecticide · yield · Oryza sativa (rice)Results differ

60 papers: 50 positive, 10 negative or no effect

49 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative

56 papers more in this group

See all 60 papers →

rotation · yield · Oryza sativa (rice)Positive and negative results

86 papers: 72 positive, 14 negative or no effect

71 papers in the same direction as this paper · 13 in the opposite direction · 1 reporting no difference from an alternative

negative
Continuous cropping reduced crop growth and yield.
Growth inhibition due to continuous cropping of dryland rice and other crops · 1978
Opposite direction
no effect
Contrary to expectation, soybean-rice and rice-rice rotation yields did not differ significantly in simulation.
Simulating Soybean–Rice Rotation and Irrigation Strategies in Arkansas, USA Using APEX · 2020 · compared with rice–rice
Opposite direction
negative
After a fallow, soil N mineralisation was limiting during rice grain-filling.
Prior crop and residue incorporation time affect the response of paddy rice to fertiliser nitrogen · 1999
Opposite direction

82 papers more in this group

See all 86 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.

Abstract

Claims 6

The same questions in other papers

acephate · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results

fipronil · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results

pymetrozine · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results

buprofezin · Nilaparvata lugens · Oryza sativa (rice)Results agree

insecticide · yield · Oryza sativa (rice)Results differ

rotation · yield · Oryza sativa (rice)Positive and negative results