Abstract
Jassid (Amrasca biguttula biguttula) is regarded as the most harmful sap-sucking pest affecting the brinjal crop. This research evaluated the efficacy of insecticides against Jassid in seasonal brinjal in open fields at Gauradaha, Jhapa, Nepal, from January to April 2023. We selected a registered hybrid variety and designed the experiment with seven treatments, each replicated three times. The treatments were: T1: Emamectin benzoate 5% WDG-0.625 g/plot, T2: Spinosad 45% SC-0.5 ml/plot, T3: Neem oil 5000 ppm-8 ml/plot, T4: Fipronil 0.3% GR-40 g/plot, T5: Beauveria bassiana-1.3 g/plot, T6: Imidacloprid 70% WG-0.14 g/plot, and T7: Untreated or Control (water spray)-2 l/plot. Treatments were applied 3 times using a foliar spray method. Data regarding the Jassid population before spraying insecticides and after the 2nd, 4th, and 6th days of spraying were recorded. Data were collected, log10 transformed, and analyzed using ANOVA in GenStat (15th edition), with mean separation by Duncan’s Multiple Range Test (DMRT). The results show that Imidacloprid was the most effective against Jassid, with mean mortality of 82.04%, 40.35%, and 42.13% followed by Fipronil with 33.12%, 12.56%, and 17.86%. The highest yield (14.32 Mt/ha) was recorded from Imidacloprid 70% WG followed by Beauveria bassiana (13.82 Mt/ha). Regarding the B: C ratio, Imidacloprid 70% WG was the superior treatment with the highest value (2.5) followed by Fipronil 0.3% GR (2.1). The highest length (20.48 cm) and diameter (4.5 cm) were observed in Imidacloprid and Fipronil, while the lowest was recorded in Emamectin benzoate (12.14 cm) and Control (3.6 cm), respectively. These findings demonstrate that Imidacloprid significantly reduces Jassid populations and enhances brinjal productivity and economic returns, making it a superior choice for pest management in brinjal cultivation in Jhapa, Nepal.
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Claims 11
Claim · model-written summary
Imidacloprid had the greatest jassid mortality, at three reported observations.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- Imidaclopride0
- Interactor
- Jasside0pest
- Outcome
- Jassid, with mean mortalitye0
- Direction
- most effectivee0
- Value
- 82.04%, 40.35%, and 42.13%e0
- Comparator
- Fipronile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imidacloprid was the most effective against Jassid, with mean mortality of 82.04%, 40.35%, and 42.13% followed by Fipronil with 33.12%, 12.56%, and 17.86%”
t0“brinjal”
Claim · model-written summary
Fipronil produced the next highest jassid mortality at three observations.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Fipronile0
- Interactor
- Jasside1pest
- Outcome
- Jasside1
- Direction
- followede0
- Value
- 33.12%, 12.56%, and 17.86%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed by Fipronil with 33.12%, 12.56%, and 17.86%”
e1“most effective against Jassid”
t0“brinjal”
Claim · model-written summary
Imidacloprid 70% WG gave the highest brinjal yield, 14.32 Mt/ha.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Imidacloprid 70% WGe0
- Interactor
- Beauveria bassiana
Beauveria bassianae0biocontrol_agent - Outcome
- yielde0
- Direction
- higheste0
- Value
- 14.32 Mt/hae0
- Comparator
- Beauveria bassianae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield (14.32 Mt/ha) was recorded from Imidacloprid 70% WG followed by Beauveria bassiana (13.82 Mt/ha)”
t0“brinjal”
Claim · model-written summary
Beauveria bassiana gave the second reported brinjal yield, 13.82 Mt/ha.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Beauveria bassianae0
- Interactor
- Beauveria bassianaBeauveria bassianae0biocontrol_agent
- Outcome
- yielde0
- Direction
- followede0
- Value
- 13.82 Mt/hae0
- Comparator
- Imidacloprid 70% WGe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield (14.32 Mt/ha) was recorded from Imidacloprid 70% WG followed by Beauveria bassiana (13.82 Mt/ha)”
t0“brinjal”
Claim · model-written summary
Imidacloprid 70% WG had the highest benefit:cost ratio, 2.5.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Imidacloprid 70% WGe0
- Outcome
- B: C ratioe1
- Direction
- higheste0
- Value
- 2.5e0
- Comparator
- Fipronil 0.3% GRe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imidacloprid 70% WG was the superior treatment with the highest value (2.5) followed by Fipronil 0.3% GR (2.1)”
e1“Regarding the B: C ratio”
t0“brinjal”
Claim · model-written summary
Fipronil 0.3% GR had the next highest benefit:cost ratio, 2.1.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Fipronil 0.3% GRe0
- Outcome
- B: C ratioe1
- Direction
- followede0
- Value
- 2.1e0
- Comparator
- Imidacloprid 70% WGe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imidacloprid 70% WG was the superior treatment with the highest value (2.5) followed by Fipronil 0.3% GR (2.1)”
e1“Regarding the B: C ratio”
t0“brinjal”
Claim · model-written summary
Imidacloprid produced the highest length, 20.48 cm.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Imidaclopride0
- Outcome
- lengthe0
- Direction
- higheste0
- Value
- 20.48 cme0
- Comparator
- Emamectin benzoatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest length (20.48 cm) and diameter (4.5 cm) were observed in Imidacloprid and Fipronil, while the lowest was recorded in Emamectin benzoate (12.14 cm) and Control (3.6 cm), respectively”
t0“brinjal”
Claim · model-written summary
Fipronil produced the highest diameter, 4.5 cm.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Fipronile0
- Outcome
- diametere0
- Direction
- higheste0
- Value
- 4.5 cme0
- Comparator
- Controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest length (20.48 cm) and diameter (4.5 cm) were observed in Imidacloprid and Fipronil, while the lowest was recorded in Emamectin benzoate (12.14 cm) and Control (3.6 cm), respectively”
t0“brinjal”
Claim · model-written summary
Emamectin benzoate produced the lowest length, 12.14 cm.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Emamectin benzoatee0
- Outcome
- lengthe0
- Direction
- loweste0
- Value
- 12.14 cme0
- Comparator
- Imidaclopride0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest length (20.48 cm) and diameter (4.5 cm) were observed in Imidacloprid and Fipronil, while the lowest was recorded in Emamectin benzoate (12.14 cm) and Control (3.6 cm), respectively”
t0“brinjal”
Claim · model-written summary
The control produced the lowest diameter, 3.6 cm.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- Controle0
- Outcome
- diametere0
- Direction
- loweste0
- Value
- 3.6 cme0
- Comparator
- Fipronile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest length (20.48 cm) and diameter (4.5 cm) were observed in Imidacloprid and Fipronil, while the lowest was recorded in Emamectin benzoate (12.14 cm) and Control (3.6 cm), respectively”
t0“brinjal”
Claim · model-written summary
The authors identify imidacloprid as a superior pest-management choice for brinjal in Jhapa.
- Taxon
- brinjalSolanum melongenae0
- Outcome
- superior choice for pest managemente0
- Setting
- Jhapa, Nepale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“making it a superior choice for pest management in brinjal cultivation in Jhapa, Nepal”
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