Efficacy of different insecticides against brown planthopper, Nilaparvata lugens (Stål) in rice

Matharu, KS; Tanwar, PS

doi:10.22271/chemi.2020.v8.i3k.9310

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…The per cent increase in yield was Table 1. Name of the insecticides tested along with their dosages and manufacturers Values in parentheses are √x+1 transformed values calculated by following formula and it was adopted by Matharu and Tanwar [19]. Economics of different treatments was analyzed, using the cost of insecticide, its application cost and other charges etc.…”

Section: Methodsmentioning

confidence: 99%

A Study on Bio-efficacy of Dinotefuran 20% SG against Brown Plant Hopper Nilaparvatha lugens (Stall) on Paddy Oryza sativa L

Kirankumar¹,

Reddy

2022

IJECC

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In rice cultivation, the Brown plant hopper causes damage to growth of plants by sucking cell sap and it causes in drying of plants and crop fields this effects on plant growth and turns into yellow color later brown. In order to overcome this kind of damage particularly in rice cultivation, a field trial was conducted during kharif 2017 at Agricul Research Station Gangavathi to the assess the bio-efficacy of Dinotefuran 20% SG against brown plant hopper Nilaparvatha lugens (Stall) on paddy. The results revealed that, the new insecticide Dinotefuran 20% SG 40 g a.i./ha showed lowest population of 0.86 and 0.73, 0.67 and 0.57 BPH/hill at 3, 7,10 and 15 days after spray (DAS) respectively and this treatment was significantly superior over rest of the treatments. Further, it was on par with lower dose of Dinotefuran 20% SG @ 30 g a.i./ha which is recorded 1.63, 1.60, 1.49 and 1.42 BPH/hill at 3, 7, 10 days and 15 DAS respectively, followed by standard check buprofezin @187.5g a.i./ha recorded 1.63, 1.90, 2.05and 2.15 and BPH/hill at 3, 7,10 and 15 DAS respectively. Another insecticide imidacloprid @ 22.5g a.i./ ha was found inferior to all other treatments by harbouring4.43,4.53, 4.76 and 4.87 BPH/hill, where as the untreated control recorded highest BPH population of 21.70 to 25.64 BPH/hill through out the observational period from one day before to 15 DAS respectively. The maximum additional yield was 22.37% was recorded over control (64.28 q/ha) was found in case of Treatment 4 (T4) with an incremental benefit cost ratio of 3.72.

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Section: Methodsmentioning

confidence: 99%

A Study on Bio-efficacy of Dinotefuran 20% SG against Brown Plant Hopper Nilaparvatha lugens (Stall) on Paddy Oryza sativa L

Kirankumar¹,

Reddy

2022

IJECC

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“…Until now, the farmers in Indonesia still prioritize synthetic insecticides to control the population dan attack level of brown planthopper. Unfortunately, excessive, and continuous use of insecticides leads to environmental imbalance and pollution, reduce biodiversity, and increased the resistance of BPH to various insecticides (Matharu and Tanwar 2020;Lamba and Dono 2021). For this reason, it is necessary to provide more environmentally friendly techniques to reduce pesticides' negative impact.…”

Section: Introductionmentioning

confidence: 99%

Diversity of endophytic fungi of rice plants in Padang City, Indonesia, entomopathogenic to brown planthopper (Nilaparvata lugens)

2023

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Abstract. Trizelia, Rahma H, Syahrawati M. 2023. Diversity of endophytic fungi of rice plants in Padang City, Indonesia, entomopathogenic to brown planthopper (Nilaparvata lugens). Biodiversitas 24: 2384-2392. Various endophytic fungi can live in plant tissues for all or part of their life cycle without causing damage or disease in their host. Several genera of endophytic fungi have been reported to be entomopathogenic and can be used to control insect pests. This study aimed to determine the diversity of endophytic fungi from rice stems that were entomopathogenic against Nilaparvata lugens (Stål, 1854) or Brown Planthopper (BPH). Endophytic fungi were isolated from rice stems of IR42 and Cisokan varieties grown in Padang City, West Sumatra Indonesia. Isolated fungi were first evaluated for their pathogenicity against Tenebrio molitor larvae. Subsequently high pathogenicity showed isolates were tested on nymphs and adults of BPH. The results showed that the entomopathogenic fungi isolated from IR 42 and Cisokan were the members of genus Aspergillus, Trichoderma, and Beauveria. The entomopathogenic fungi from IR 42 were more diverse than Cisokan, and Beauveria sp. was the most common isolate and had a better ability to kill the BPH. The highest mortality of BPH was found in PIR 1.3 isolate, but the mortality was still relatively low (53.33% nymphs and 34.99% adults). Further study is needed to increase the effectiveness of these endophytic fungi against BPH directly or indirectly by inducing resistance.

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“…Currently, N. lugens developed resistance to frequently used insecticides and there are threats of future resistance development to less used insecticides (Fujii et al, 2020;Matharu & Tanwar, 2020). Previous findings suggest extremely higher levels of resistance to imidacloprid, a principal neonicotinoid insecticide, and potentiality to develop resistance to other insecticides of the same group (Datta et al, 2021a).…”

Section: Introductionmentioning

confidence: 99%

Insecticide Resistance in the Brown Planthopper, Nilaparvata lugens (Stål): Mechanisms and Status in Asian Countries

Datta

Banik²

2021

jers

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The brown planthopper, Nilaparvata lugens (Stål) is a destructive rice pest found in almost all the rice-growing areas across the globe. In pest management strategies, insecticides are the vital element to control this insect pest. But recently their heavy use poses a risk of control failure because of the development of insecticide resistance. Quick insecticide resistance development nature in N. lugens intrigued scientists to understand the complex resistance mechanism(s), side by side pledge the importance of regular monitoring to know the trend of resistance development. Resistance mechanisms like, target-site insensitivity and enhanced activity of detoxifying enzymes, have been extensively studied and identified in governing the resistance development of N. lugens. Both the field collected and laboratory selected pest populations were tested against commonly used insecticides to detect insecticide resistance ratio. In this review, recent findings of resistance mechanisms, candidate genes those contribute in resistance development have been summarized. We also provide an insight into the metabolic resistance mechanisms that confer significant levels of resistances and the current status of insecticide resistance in N. lugens. This review will help to get a clearer view on present research directions of insecticide resistance in N. lugens.

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Efficacy of different insecticides against brown planthopper, Nilaparvata lugens (Stål) in rice

Cited by 4 publications

References 4 publications

A Study on Bio-efficacy of Dinotefuran 20% SG against Brown Plant Hopper Nilaparvatha lugens (Stall) on Paddy Oryza sativa L

A Study on Bio-efficacy of Dinotefuran 20% SG against Brown Plant Hopper Nilaparvatha lugens (Stall) on Paddy Oryza sativa L

Diversity of endophytic fungi of rice plants in Padang City, Indonesia, entomopathogenic to brown planthopper (Nilaparvata lugens)

Insecticide Resistance in the Brown Planthopper, Nilaparvata lugens (Stål): Mechanisms and Status in Asian Countries

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