Neem oil as a potential seed dresser for managing Homopterous sucking pests of Okra (Abelmoschus esculentus (L.) Moench)

2006 ◽  
Vol 79 (2) ◽  
pp. 103-111 ◽  
Author(s):  
P. Indira Gandhi ◽  
K. Gunasekaran ◽  
Tongmin Sa
Keyword(s):  
Abelmoschus Esculentus ◽  
Neem Oil

scholarly journals Comparative Toxicity of Nitenpyrem and Neem Oil Against Amrasca biguttula biguttula in Okra

2021 ◽  
Vol 39 (3) ◽  
pp. 210-214
Author(s):  
Zulnorain Sajid ◽  
◽  
Muhammad Anwar Ul Haq ◽  
Qasim Farooq ◽  
Yaqoob Sultan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Mortality Rate ◽  
Field Conditions ◽  
Abelmoschus Esculentus ◽  
Neem Oil ◽  
Amrasca Biguttula Biguttula ◽  
Maximum Reduction ◽  
Comparative Toxicity

The Jassid, Amarasca bigutulla bigutullaa is an important sucking pest of the okra crop. An experimental study was conducted during 2018 to check the comparative toxicity of nitenpyrem and neem oil against jassid under okra field conditions. The study revealed that 24 hours after treatment, nitenpyrem was found more toxic and effective with maximum reduction of jassid population (72.15%). Whereas, 120 hours after treatment with 4% neem oil, 15.05% jassid reduction was observed. The mortality rate of the jassid was increased with increasing in time after application of chemical insecticides. The study concluded that insecticide was most toxic and gives higher mortality of jassid as compared to neem oil. Keywords: Abelmoschus esculentus, Malvaceae, Amarasca bigutulla bigutullaa, botanicals, insecticides, Pakistan

Growth and yield of okra (Abelmoschus esculentus (L.) Moench) grown in the marginal upland area of Sta. Rita, Samar as influenced by different planting densities and mulching materials

2017 ◽  
pp. 44-54
Author(s):  
Zenaida Gonzaga ◽  
Warren Obeda ◽  
Ana Linda Gorme ◽  
Jessie Rom ◽  
Oscar Abrantes ◽  
...  
Keyword(s):  
Bare Soil ◽  
Abelmoschus Esculentus ◽  
Growth And Yield ◽  
Planting Density ◽  
Rice Hull ◽  
Plastic Mulch ◽  
Lady’S Finger ◽  
Materials Used ◽  
Set Up ◽  
A Minor

Okra or Lady’s finger, botanically known as Abelmoschus esculentus (L.) Moench, is a tropical and sub-tropical indigenous vegetable crop commonly grown for its fibrous, slimy, and nutritious fruits and consumed by all classes of population. It has also several medicinal and economic values. Despite its many uses and potential value, its importance is under estimated, under-utilized, and considered a minor crop and little attention was paid to its improvement. The study was conducted to evaluate the effects of different planting densities and mulching materials on the growth and yield of okra grown in slightly sloping area in the marginal uplands in Sta. Rita, Samar, Philippines. A split-plot experiment was set up with planting density as main plot and the different mulching materials as the sub-plot which were: unmulched or bare soil, rice straw, rice hull, hagonoy and plastic mulch. Planting density did not significantly affect the growth and yield of okra. Regardless ofthe mulching materials used, mulched plants were taller and yielded higher compared to unmulched plants. Moreover, the use of plastic mulch resulted to the highest total fruit yield. The results indicate the potential of mulching in increasing yield and thus profitability of okra production under marginal upland conditions.

Effect of Neem Oil (Azadirachtin) Against White Rot Fungus (Polyporous Versicolor) in Wood Plastic Particle Board

2012 ◽  
Vol 3 (1) ◽  
pp. 20-21
Author(s):  
A.Sangeetha A.Sangeetha ◽  
◽  
K.Thanigai K.Thanigai ◽  
Narasimhamurthy Narasimhamurthy ◽  
S.K.Nath S.K.Nath
Keyword(s):  
White Rot ◽  
White Rot Fungus ◽  
Particle Board ◽  
Neem Oil ◽  
Plastic Particle

Field Efficiency of Certain Biopesticides and Neem Products Against Helicoverpa armigera (Hubner) on Chickpea (Cicer arietinumL.)

2019 ◽  
Vol 10 (01) ◽  
Author(s):  
Nihad H. Mutlag ◽  
Ameer S. A. Al-Haddad
Keyword(s):  
Helicoverpa Armigera ◽  
Block Design ◽  
Individual Treatment ◽  
Neem Oil ◽  
Larval Population ◽  
Neem Cake ◽  
Combination Treatments ◽  
Randomized Block Design ◽  
Helicoverpa Armígera ◽  
Nuclear Polyhedrosis

A field study was conducted to evaluate the efficiency of four microbial insecticides viz. Beauveria bassiana; HaNPV (Helicoverpa armigera Nuclear Polyhedrosis virus); (Bacillus thuringiensisvar.kurstaki 2 gm/L); HaNPV+Bt; neem oil; neem cake and D.D.V.P EC 76% @0.05% at Research Farm SHIATS,Allahabad during rabi season of 2011-2012. The experiment was laid out in randomized block design with seven treatment and replicated thrice. The observation larval populations of H. armigera were recorded one day before treatment was recorded at 3,7, and 10 days after treatments. The larva population of H. armigera appeared in the third week of February (8 the Standard week) and reached its peak of 14.65 larvae in first week of April and decline rapidly with maturation of crop. There was only one peak in the larval population observation in the 1st week. Bacillus thuringiensis was the most effective chemical by D.D.V.P.76%@0.05% . Among the microbial insecticides. HaNPV ,was the most effective followed by HaNPV+Bt and neem cake . The combination treatments were less effective than the individual treatment neem oil and B. bassiana were the least effective treatment in reducing the larval population of Heliverpa armigera.

Efektivitas Serbuk Buah Okra (Abelmoschus esculentus) sebagai Larvasida Aedes aegypti

2019 ◽  
Author(s):  
Monica Puspa Sari ◽  
Henricho Himawan ◽  
Rina Priastini Susilowati
Keyword(s):  
Aedes Aegypti ◽  
Abelmoschus Esculentus

Temephos 1% atau lebih dikenal dengan abate dulu efektif untuk penanganan larva nyamuk, khususnya larva Aedes aegypti yang merupakan vektor utama dari demam berdarah. Akan tetapi penggunaan yang terus menerus dan tidak terkontrol dapat menyebabkan terjadinya resistensi temephos. Tujuan dari penelitian ini adalah untuk mencari larvasida alami yang dapat digunakan sebagai alternatif atau pengganti temephos, salah satunya adalah buah okra. Penelitian ini merupakan penelitian eksperimental, dengan lima kali pengulangan dan konsentrasi masing-masing 1%,2%,4%,8%, dan 16%, kontrol negatif, dan temephos 1% sebagai kontrol positif, dan dilakukan pengamatan selama 24 jam untuk melihat jumlah kematian larva. Hasil percobaan serbuk buah okra dengan berbagai konsentrasi terhadap larva instar III Aedes aegypti menunjukkan hasil nilai LC50 sebesar 4,143% dan LC90 sebesar 12,778%. Serbuk buah okra dapat bertindak sebagai racun dan bersifat sebagai racun kontak bagi larva Aedes aegypti. Dapat disimpulkan bahwa dosis efektif serbuk buah okra untuk mematikan larva Aedes aegypti adalah 12,778 %. Kata kunci: Aedes aegypty, temephos 1%, larvasida, serbuk buah okra

Role of Zno Nanoparticles in Enhancing the Antimicrobial Property of Nitrocellulose Lacquer Wood Finish

2019 ◽  
Vol 12 (1) ◽  
pp. 91-98
Author(s):  
Shikhar Shukla ◽  
Shailendra Kumar ◽  
Ismita Nautiyal ◽  
Kishan Kumar V.S
Keyword(s):  
Antimicrobial Activity ◽  
Zno Nanoparticles ◽  
Antimicrobial Property ◽  
Economic Loss ◽  
Analysis Data ◽  
Wood Products ◽  
Mould Growth ◽  
Neem Oil ◽  
Nano Zno ◽  
Aesthetic Appearance

Background: Mould growth on coated wood products during shipment is the foremost apprehension for most of the wood industries in India. Well finished wood products tend to get deposited by staining moulds superficially in high humidity conditions during shipment. Though wood disfiguring fungi (stain moulds) normally have no significant effect on the mechanical properties of timber, they only affect the aesthetic appearance of the material without destructing the wood cell wall. This causes a huge economic loss to the manufacturer due to disfigurement of the appearance of wood products. Methods: The aim of this work is to test and enhance antimicrobial property of Nitrocellulose lacquer wood finish to prevent mould deposition on coated wood products. The work was carried out to screen and evaluate the antimicrobial activity of commercial Nitrocellulose lacquer. Several patents regarding antimicrobial activity of nano metal oxides have been visited. In order to enhance the mould resistance of this coating, its combinations with neem oil and ZnO nanoparticles were prepared and tested against the growth of staining moulds: Aspergillus niger and Penicillium sp. on the wood substrate of Melia dubia. The study was carried out for 500 hours under favorable conditions (Temperature and Relative Humidity (RH)) for the mould growth. The growth was analysed on the basis of surface area affected by stain moulds on coated wood samples. Results: The growth analysis data inferred that the ZnO nanoparticles had significant effect against the growth of stain moulds. The presence of ZnO nanoparticles increased the mould growth resistance of Nitrocellulose lacquer coating to a great extent compared to the ability of neem oil for the same. This finding demonstrates the potential use of nano ZnO for increasing the effectiveness of NC lacquer against mould growth without hampering its other properties. Conclusion: 1 % nano ZnO concentration in Nitrocellulose lacquer wood coating increased its efficacy against staining mould growth by 95 %.

Effectiveness of Neem (Azadirachta indica A. Juss) Oil against Decay Fungi

2017 ◽  
Vol 5 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Kanchan Rawat ◽  
◽  
Uttam Kumar Sahoo ◽  
Nagaraj Hegde ◽  
Awadhesh Kumar ◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Schizophyllum Commune ◽  
Antimicrobial Properties ◽  
Fusarium Proliferatum ◽  
Wood Preservatives ◽  
Neem Oil ◽  
Environment Friendly ◽  
Decay Fungi ◽  
Natural Oils ◽  
Mycelia Growth

The enormous use of metallic wood preservatives has caused destructive impact on environment as well as human health. Therefore realizing the urgency of switching to Environment friendly options such as natural oils are being tested for their antimicrobial properties. The present study aimed at investigating potential of Neem oil against the growth ofdecaying fungi. The ability of Neem oil to inhibit mycelia growth of Schizophyllum commune, Fusarium oxysporum, Fusarium proliferatum, Coniophora puteana and Alternaria alternata was tested at different concentrations of 0.25, 0.50, 0.75, 1.0, 2.0, 4.0, 6.0, 8.0 and 10%. Results of the study revealed Neem oil concentrations above 2% were significantly inhibitory to all the tested fungi.

Sign in / Sign up

Export Citation Format

Share Document