best insecticide for brown planthopper hair

IMPACT OF GRANULAR FORMULA TION OF CONVENTIONAL …

caused by brown planthopper in the field can be identified by the development of circular patches in the field, which is termed as “Hopper Burn”. The brown planthopper alone causes 10-30 per cent loss in rice yield (Li et al., 1996). The first severe outbreak occurred in Kerala in 1973-74, damaging about 50, 000 ha of rice (Bai et al., 1992).

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Efficacy of ethofenprox against leafhoppers and ...

Nov 01, 1993·Efficacy of ethofenprox against leafhoppers and planthoppers, with emphasis on preventing resurgence of brown planthopper, Nilaparvata lugens (St l), in rice N. V. Krishnaiah* and M. B. Kalode Directorate of Rice Research, Rajendranagar, Hyderabad 500030, A.P., India In greenhouse studies in India, the insecticide ethofenprox (an ether derivative) at a concentration of …

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Knowledge Bank | Management of Brown Planthopper in rice

Spray a neem based insecticide e.g. Azadirachtin @ 3-5 ml per litre or chloropyrifos 20% EC @ 1.5 ml per litre or imidacloprid 70%WG @ 1g/10 litres of water on the lower part of stem of rice plant ; If brown planthopper attack occurs after milking stage, it will be too late to damage yield so there is no need to apply insecticides.

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Use of Computer Tools for the Design of Pest Management ...

The use of systems analysis and computer modelling is described in connection with developing management strategies for the control of brown planthopper in temperate and tropical rice. The model developed for rice in Zhejiang Province, China, has been used to determine the best times to make one or two applications of insecticide.

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Safety Selected Insecticides to Predators and Egg ...

The research safety selected insecticides to predators and egg parasitoids of planthoppers in rice ecosystem was carried out in the wet season of 2014 at Subang District. The several insecticides ...

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Manage key rice pests like sheath blight and brown ...

Chess is the most effective insecticide against the brown planthopper. It delivers immediate crop protection through permanent feeding inhibition. It minimize the damage, providing long duration control of brown planthopper, which will generate higher yield.

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What Pesticide Kills Leaf Hoppers? | Home Guides | SF Gate

Botanical Insecticides. Naturally occurring toxins extracted from plants to use as pesticides are called “botanical” insecticides. Botanical pesticides work quickly, break down quickly, and ...

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Insecticides are Key for Managing Brown Planthoppers in ...

Insecticides are Key for Managing Brown Planthoppers in Japanese Rice Fields International Pesticide Benefits Case Study No. 82, August 2013 Leonard Gianessi The brown planthopper (BPH) Nilaparvata lugens has been one of the most important pests of rice in Japan since ancient times [1]. There have been numerous records of outbreaks,

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Ascend® insecticide | BASF Crop Protection Philippines

Because of its unique mode of action, Ascend ® is effective against insect pests that have developed resistance to conventional insecticides. Grow pest-free crops with Ascend ® , the insecticide proven to control Leaffolder, Brown Planthopper, Stem borer, Rice bug, Cutworm, Shoot borer , Leaf beetles , Thrips, and Diamondback Moth .

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Neofunctionalization of Duplicated P450 Genes Drives the ...

Zimmer et al. explore the functional significance of genetic variation at the loci encoding CYP6ER1, a cytochrome P450 enzyme, in field strains of the brown planthopper. They show that duplication of CYP6ER1 provided opportunities for functional and regulatory innovation, leading to resistance to the insecticide imidiacloprid.

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Efficacy of ethofenprox against leafhoppers and ...

Nov 01, 1993·Efficacy of ethofenprox against leafhoppers and planthoppers, with emphasis on preventing resurgence of brown planthopper, Nilaparvata lugens (St l), in rice N. V. Krishnaiah* and M. B. Kalode Directorate of Rice Research, Rajendranagar, Hyderabad 500030, A.P., India In greenhouse studies in India, the insecticide ethofenprox (an ether derivative) at a concentration of …

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The evolution of insecticide resistance in the brown ...

Mar 15, 2018·The brown planthopper, Nilaparvata lugens, is an economically important pest on rice in Asia. Chemical control is still the most efficient primary way for rice planthopper …

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(PDF) Efficiency of Mycoinsecticides Controlling Pest ...

Efficiency of Mycoinsecticides Controlling Pest Populations of the Brown Planthopper in Rice. A Simulation Model Dieter H. Knösel Claus Peter Ortlieb Institute of Applied Botany Institute of Applied Mathematics University of Hamburg University of Hamburg CEC Research Contract TS3* - CT92-0018 February 1996 1 Introduction: Biological control of insect pests of rice Rice (Oryza sativa L.) is ...

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BIO EFFICACY OF NOVEL INSECTICIDES AGAINST …

found to be best treatment and was followed by dinotefuran @ 25 g a.i. /ha at in Warangal and Marutheru and Gangavathi. Similarly, Cardova et al. (2016) who also summerized that triflumezopyrim is novel insecticides belongs to mesoionic group of insecticides and provides good control against brown planthopper. Similarly,

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Use of Computer Tools for the Design of Pest Management ...

The use of systems analysis and computer modelling is described in connection with developing management strategies for the control of brown planthopper in temperate and tropical rice. The model developed for rice in Zhejiang Province, China, has been used to determine the best times to make one or two applications of insecticide.

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Comparative efficacy of newer insecticides against brown ...

Comparative bioefficacy of few newer insecticides were tested against brown planthopper of rice under greenhouse conditions, IGKV, Raipur during 2013 and 2014. The mean of cumulative mortality during first year clearly indicated that all the insecticidal treatments were significantly superior over untreated control within ten DAT. The

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AgroPages-China announces insecticide resistance ...

May 09, 2016·All brown planthopper populations in the monitored region have developed a medium level of resistance to the chlorpyrifos insecticide (resistance ratio: 10-64–fold), which is a significant rise compared with the low levels registered in 2014.

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Comparative efficacy of newer insecticides against brown ...

Comparative bioefficacy of few newer insecticides were tested against brown planthopper of rice under greenhouse conditions, IGKV, Raipur during 2013 and 2014. The mean of cumulative mortality during first year clearly indicated that all the insecticidal treatments were significantly superior over untreated control within ten DAT. The

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Management of planthoppers and leafhoppers – Agriculture ...

Dec 16, 2019·• Indiscriminate application of insecticides cause resurgence (by killing the insects. natural enemies). Management options for planthoppers Biological, coupled with cultural control such as the use of resistant varieties and proper crop management practices, is the most ideal planthopper management strategy.

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BIO EFFICACY OF NOVEL INSECTICIDES AGAINST PLANTHOPPERS IN ...

PDF | A field experiment was carried out at Agriculture Research Station, Gangavathi, Koppal district, Karnataka, during Kharif 2015 to evaluate the bio... | Find, read and cite all the research ...

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Benzpyrimoxan: An Insecticide for the Control of Rice ...

[4] X. L. Zhang, X. Liao, K. K. Mao, K. X. Zhang, and H. Wan, “Insecticide resistance monitoring and correlation analysis of insecticides in field populations of the brown planthopper Nilaparvata lugens in China 2012-14,” Pesticide Biochemistry and Physiology, pp. 13-20, 2016.

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P-ISSN: 2349 Bioefficacy evaluation of buprofezin 15% ...

Brown Planthopper The observations on brown planthopper was recorded by counting the number hoppers per hill in 10 randomly selected hills in each plot before spray and after 1, 3, 5, 7 and 10 days after the spray after 1st, 2nd and 3rd sprays were imposed at 10 days interval. Per cent corrected mortality was calculated by

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(PDF) Rates and Effect of Resurgence-Inducing Insecticides ...

These insecticides influenced on the growth and reproductive physiology of rice brown planthopper and consequently resurgence ratio ranged increased. SAARC J. Agri., 18(1): 117-128 (2020) View

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Appraisal of the Impact of Three Insecticides on the ...

Jun 01, 2016·Planthopper abundance (number per 50 hills) and efficacy of Virtako WG for suppression of planthoppers after using a single application of insecticide. Overall, Virtako treatment had a greater effect in controlling the planthopper population than treatments with either thiamethoxam alone or chlorantraniliprole alone ( F = 8.74; df = 107; P < 0.01).

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PEST: RICE BROWN PLANTHOPPER

Nilapavarta lugens is probably the most serious insect pest of rice in Asia.Its feeding causes plant wilt and ca use a sympt om called hopperburn. it also transmits grassy stunt and ragged stunt virus diseases.. Pest status. The rice brown planthopper has a high capacity to reproduce. Frequently, farmer misuse of insecticide causes outbreaks of hopperburn and/or virus diseases over large areas.

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Potential toxicity of selected insecticides to rice ...

Potential toxicity of selected insecticides to rice brown planthopper (BPH), Nilaparvata lugens, whitebacked planthopper (WBPH), Sogatella furcifera, green leafhopper (GLH), Nephotettix virescens and their important predators in rice ecosystem, viz., green mirid bug, Cyrtorhinus lividipennis, brown mirid bug, Tytthus parviceps and veliid predator, Microvelia douglasi atrolineata was assessed in...

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