efficacy of oil extract of castor seed in repel of insect

botanicals: the protectants of stored grains pests - researchgate

Botanicals: The Protectants of Stored Grains Pests - ResearchGate

Botanical extracts kill and repel pests, affect insect growth and development, have antifeedant and arrestant effects. ... Four different concentrations of seed oil (0.5, 1.0, 1.5 and 2.0 mL) were ...

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aqueous and ethanolic plant extracts as bio-insecticides ...

Aqueous and Ethanolic Plant Extracts as Bio-Insecticides ...

Azadirachta indica ethanolic extract was the best of nine extracts whose effectiveness in protecting chickpea seeds against the pulse beetle Callosobruchus chinensis was evaluated . This extract at 10% v/w concentration caused, after a seven days treatment, the decrease in the number of adult insects (25.67 ± 1.40), laid eggs per 100 seeds (15 ...

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management of pests of oilseed crops | springerlink

Management of Pests of Oilseed Crops | SpringerLink

2.1 Key Pests. The crop is infested by a large number of insect pests on all the phenophases of its growth. Among the insect pests, defoliators such as the groundnut leaf miner (Aproaerema modicella), tobacco caterpillar (Spodoptera litura), red hairy caterpillars (Amsacta albistriga and A. moorei), Bihar hairy caterpillar (Spilosoma obliqua) and gram pod borer (Helicoverpa armigera) are the ...

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sublethal effects of oregano essential oil and its major ...

Sublethal effects of oregano essential oil and its major ...

In dose response larva toxicity bioassays, oregano oil and carvacrol showed increasing mortality of 3rd – 4th instar larvae of Ae. albopictus with increasing concentration. Both tested materials exerted high larvicidal effect with LC 50 values of 30 ppm for oregano oil and 22.5 ppm (μL L −1) for carvacrol (Table 1).

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plant-based insect repellents: a review of their efficacy ...

Plant-based insect repellents: A review of their efficacy ...

This paper presents a summary of recent information on testing, efficacy and safety of plant-based repellents as well as promising new developments in the field. An overview of repellent plant ...

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a review of castor-derived products used in crop and seed ...

A review of castor-derived products used in crop and seed ...

Castor-derived products are currently used for protecting agricultural crops and seeds from devastating damages of pests and diseases. Extracts (1–10%) of leaf or seed in water or chemical solvents, and crude oil (3–5%) extracted from seed were found effective as sprays against foliage insect pests. Populations of the root-knot nematodes were significantly reduced when de-oiled seed cake ...

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potential of the various oils for insect pests’ management ...

Potential of the various oils for insect pests’ management ...

Prasannath and Mahendran observed that 5% neem seed extract had a significant reduction in aphid population and the least damage percentage of leaf miner (1.1%) and pod borer (13.0%) in cowpea. Beside this, other examples showing efficacy of vegetable oil against various insect pests are given in Table 4.

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neem oil: how to use it to control pests safely - epic gardening

Neem Oil: How To Use It To Control Pests Safely - Epic Gardening

Spray the neem oil on a small area to ensure it won’t burn your plants. Always spray at dusk or just before the sun rises. After spraying a small section, wait 24 hours to determine that neem oil pesticide hasn’t burned your plants. If the spray hasn’t caused any discoloration or singing, you know you’re good to go.

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chemical composition of ricinus communis and momordica ...

Chemical composition of Ricinus communis and Momordica ...

Melanaphis sacchari Zehntner (Hemiptera: Aphididae) is currently the most destructive pest insect of the sorghum crop (Sorghum bicolor L. Moench) and has caused economic losses worldwide. Strategies using natural products such as plant extracts can offer alternatives for the control of this pest. In this investigation, we evaluated the insecticidal effect of the hexane extract of Ricinus ...

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insecticidal activity of garlic essential oil and their ...

Insecticidal activity of garlic essential oil and their ...

Six concentrations of garlic essential oil and their principal constituents were topically applied onto larvae, pupae and adults of this insect. Repellent effect and respiration rate of each ...

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insecticidal activity and biochemical composition of ... - nature

Insecticidal activity and biochemical composition of ... - Nature

Plant extracts contain many active compounds, which are tremendously fruitful for plant defence against several insect pests. The prime objectives of the present study were to calculate the ...

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biopesticides: formulations and delivery techniques ...

Biopesticides: Formulations and Delivery Techniques ...

Azadirachtin (tetranortriterpenoids) is responsible for insecticidal activity occurs in the seeds and leaves of neem tree [9], [10]. The insecticidal activity of the seed and leaf extract of castor (Ricinus communis) against Spodoptera frugiperda reported that ricinine is a major ingredient responsible for the activity [10].

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(pdf) efficacy of plant essential oils against rice weevil ...

(PDF) Efficacy of plant essential oils against rice weevil ...

The oil extract was the most repellent (P

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(pdf) neem: an eco-friendly botanical insecticide in pest ...

(PDF) Neem: An Eco-Friendly Botanical Insecticide in Pest ...

Journal of Biological control, Relative efficacy of neem oil and endosulfan against 11, 29 – 32. insect pests of mustard. Neem Newsletter, 7(2), 129 – 131. Joshi B.G., Sitaramaiah S., 1979. Seed kernel as an oviposition repellent for Spodoptera litura (F.) moths. Mani M., 1995.

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effectiveness of plant-based repellents against different

Effectiveness of plant-based repellents against different

Plant-based repellents are widely used to prevent mosquito bites and malaria transmission. This systematic review evaluates the effectiveness of different plant-based repellents against various Anopheles species, the main malaria vectors. The review also discusses the factors that influence the repellency, such as plant species, formulation, concentration, and duration of exposure.

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insecticidal efficacy and repellency of oregano (lippia ...

Insecticidal Efficacy and Repellency of Oregano (Lippia ...

Maize, Zea mays L., is the most important crop in Mexico. The maize weevil, Sitophilus zeamais Motschulsky, and larger grain borer, Prostephanus truncatus (Horn), cause significant loss to stored maize. The insects are controlled by insecticides that are toxic to humans and pollute the environment. An alternative to control insect damage is essential oil from plants. The aim of this research ...

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(pdf) use of neem (azadirachta indica a. juss) as a ...

(PDF) Use of neem (Azadirachta indica A. Juss) as a ...

Neem (Azadirachta indica A. Juss) is a member of Meliaceaefamily, a fast-growing tropical evergreen plant whose products were found effective against economically important insect pests and ...

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botanicals to cope stored grain insect pests: a review

Botanicals to Cope Stored Grain Insect Pests: A Review

Abstract and Figures. The present article has been reviewed to know the importance of different plant products (botanicals) against storage insect pests of seeds and grains. Storage of grains is ...

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“effectiveness of makabuhay (tinospora rumphii boerl) stem ...

“EFFECTIVENESS OF MAKABUHAY (Tinospora rumphii Boerl) STEM ...

As A Natural Cockroach Repellent” observed that the Pandan Leaves can be very useful when it comes to create a new alternative cockroach repellent. Pandan leaves contain 2-Acetyl-1-pyroline. Pandan essence and the hexane-pandan extract were repellent.

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(pdf) formulation and evaluation of herbal mosquito repellent ...

(PDF) Formulation And Evaluation Of Herbal Mosquito Repellent ...

At last it was concluded that Carom seed oil extract has potential of mosquito repellent and can be converted into a marketed formulation like essence stick, repellent Gel etc. [1] View Show abstract

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insecticidal activity of botanical oils and other neem-based ...

Insecticidal activity of botanical oils and other neem-based ...

Among the oils, castor oil caused a reduction of whitefly populations by 55.4 & 64.2 and 40.5 & 42.8% under laboratory and field conditions, respectively during both the years, pongamia oil 58.4 & 51.7 and 44.9 & 39.2%, sesame oil 45.5 & 56.4 and 30.8 & 36.9%.

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effectiveness of plant-based repellents against different

Effectiveness of plant-based repellents against different

The highest repellency effect was identified from Ligusticum sinense extract, followed by citronella, pine, Dalbergia sissoo, peppermint and Rhizophora mucronata oils with complete protection time ranging from 9.1 to 11.5 h.

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plant-based insect repellents: a review of their efficacy ...

Plant-based insect repellents: a review of their efficacy ...

PMD from lemon eucalyptus ( Corymbia citriodora) extract. Corymbia citriodora (Myrtaceae), also known as lemon eucalyptus, is a potent natural repellent extracted from the leaves of lemon eucalyptus trees (Table 1 ). It was discovered in the 1960s during mass screenings of plants used in Chinese traditional medicine.

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plant-based insect repellents: a review of their efficacy ...

Plant-based insect repellents: a review of their efficacy ...

Although the primary functions of these compounds is defence against phytophagous insects, many are also effective against mosquitoes and other biting Diptera, especially those volatile components released as a consequence of herbivory [ 1 ].

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repellent efficacy of 20 essential oils on aedes aegypti ...

Repellent efficacy of 20 essential oils on Aedes aegypti ...

In 2020, we conducted a study on the repellent efficacy of 21 active ingredients from the EPA 25 (b) list, 19 of these ingredients were essential oils. We used a Y-tube olfactometer assay that...

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a review of castor-derived products used in crop and seed ...

A review of castor-derived products used in crop and seed ...

Castor-derived products are currently used for protecting agricultural crops and seeds from devastating damages of pests and diseases. Extracts (1–10%) of leaf or seed in water or chemical solvents, and crude oil (3–5%) extracted from seed were found effective as sprays against foliage insect pests. Populations of the root-knot nematodes were significantly reduced when de-oiled seed cake ...

Get Enquote
plant-based bioinsecticides for mosquito control: impact on ...

Plant-Based Bioinsecticides for Mosquito Control: Impact on ...

Limonoids are the major active compound of the neem oil and act as an insect growth inhibitor. Azadirachtin is a triterpenoid and highly oxidized limonoid, one of the most potent active compounds of the neem extract and found in higher concentrations (0.2–0.6%) in the seeds of the neem compared to other parts of the neem tree [149,150 ...

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efficacy of active ingredients from the epa 25(b) list in ...

Efficacy of Active Ingredients From the EPA 25(B) List in ...

The present study examined the efficacy of 21 of the active ingredients listed by the EPA 25 (B) exempt list and five commercially available sprays that only contained active ingredients from the EPA 25 (B) list in repelling female Aedes aegypti (L.) females.

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effectiveness of plant-based repellents against different

Effectiveness of plant-based repellents against different

Plant-based repellents have been applied for generations in traditional practice as a personal protection approach against different species of Anopheles. Knowledge of traditional repellent plants is a significant resource for the development of new natural products as an alternative to chemical repellents. Many studies have reported evidence of repellant activities of plant extracts or ...

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biopesticides: formulations and delivery techniques ...

Biopesticides: Formulations and Delivery Techniques ...

Azadirachtin (tetranortriterpenoids) is responsible for insecticidal activity occurs in the seeds and leaves of neem tree [9], [10]. The insecticidal activity of the seed and leaf extract of castor (Ricinus communis) against Spodoptera frugiperda reported that ricinine is a major ingredient responsible for the activity [10].

Get Enquote

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