Fumigant toxicity of essential oils against four stored grain insect pests in stored paddy seeds

2018 ◽  
Vol 80 (1) ◽  
pp. 73
Author(s):  
Ranjeet Kumar ◽  
Surendra Nath Tiwari
Keyword(s):  
Essential Oils ◽  
Insect Pests ◽  
Fumigant Toxicity ◽  
Stored Grain

scholarly journals Repellent and fumigant toxic potential of three essential oils against Ephestia kuehniella

2019 ◽  
Vol 27 (4) ◽  
pp. 349-353
Author(s):  
H. Bouzeraa ◽  
M. Bessila-Bouzeraa ◽  
N. Labed
Keyword(s):  
Essential Oils ◽  
Insect Pests ◽  
Larval Mortality ◽  
Ephestia Kuehniella ◽  
Fumigant Toxicity ◽  
Stored Grain ◽  
Median Lethal Concentrations ◽  
Lepidoptera Pyralidae ◽  
Ruta Montana ◽  
Toxic Potential

Essential oils, when used as bio-insecticides in the control of insect pests of stored grains have shown specificity and variation in the potentiality of their mode of action. In the present study, three essential oils extracted from three aromatic plants of different families, white wormwood (Artemisia herba alba, Asteraceae), oregano (Origanum vulgare, Lamiaceae) and rue (Ruta montana, Rutaceae), were evaluated for their repellent and fumigant toxic potential against the flour moth larvae, Ephestia kuehniella (Lepidoptera, Pyralidae), under laboratory conditions. The essential oils extraction was done by the hydrodistillation method. The repellent activity was carried out in Petri dishes using a filter paper treated with different oil dilutions (25, 75, 100, 120, 130, 150 µL/mL). The fumigant toxicity was determined on three concentrations (50, 130, 150 µL/L air). Two plants were shown to be repellent against the E. kuehniella larvae. Origanum oil was the most repellent with 67% of repellency rate followed by Artemisia oil (46%) at 120µL/mL after 2 hours of exposure. The oil of R. montana had an attractant activity against the larvae and was the most toxic with 56.7% of larval mortality in the first 24 hours. The median lethal concentrations (LC50) recorded were 11.6, 175.4 and 1100.0 µL/L air for the plant oils R. montana, O. vulgare and A. herba alba, respectively. R. montana and O. vulgare essential oil are shown to be efficient with high toxic and repellent properties against E. kuehniella larvae. Their specific potential could be integrated in the selection of the best bioinsecticides for the optimum protection of stored grain.

scholarly journals Citrus Essential Oils: A Suite of Insecticidal Compounds

2021 ◽  
Author(s):  
Bulbuli Khanikor ◽  
Kamal Adhikari ◽  
Bikash Rabha
Keyword(s):  
Essential Oils ◽  
Insect Pests ◽  
Major Constituent ◽  
Citrus Limon ◽  
Fumigant Toxicity ◽  
Citrus Paradisi ◽  
North Eastern ◽  
Citrus Maxima ◽  
Citrus Essential Oils ◽  
North Eastern Part

Citrus essential oils (CEOs) and their constituent compounds are being reported to have multifarious activities. In this chapter an attempt is made to discuss the insecticidal activities, as well as CEO profile of different vegetative part of Citrus species and biocidal potentiality of their constituent compounds against diverse insect pests. It is observed that in most of the CEO constituent profile, limonene is the major constituent compound. Other important constituents present in different percentages in different CEOs are β-citronellal, linalool, pinene, β- caryophyllene, β-myrcene, terpinene, citral etc. These plant EO constituents are reported to have insecticidal effects against diverse insect species. Taking the four peel EOs of Citrus limon, Citrus paradisi, Citrus medica, Citrus maxima commonly grown in North Eastern part of India, study on their insecticidal effects against Dolichoderus affinis (Hymenoptera: Formicidae) was made and result is presented showing higher fumigant toxicity of C. medica and C. limon oil against the ant sp. With the increasing awareness for using safe insecticidal products among consumers, the citrus EOs with their attracting terpene compounds having good insecticidal potency bear all attributes to be used as commercial green pesticides in coming days both in indoor and outdoor management of insect pests.

scholarly journals Chemical Composition and Insecticidal Activity of Essential Oil from Coriandrum sativum Seeds against Tribolium confusum and Callosobruchus maculatus

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Abbas Khani ◽  
Tahere Rahdari
Keyword(s):  
Essential Oil ◽  
Callosobruchus Maculatus ◽  
Insect Pests ◽  
Probit Analysis ◽  
Tribolium Confusum ◽  
Coriandrum Sativum ◽  
Gas Chromatography Mass Spectrometry ◽  
Geranyl Acetate ◽  
Fumigant Toxicity ◽  
Stored Grain

The biological activity of essential oil extracted from coriander, Coriandrum sativum L. (Apiaceae), seeds against adults of Tribolium confusum Duval (Coleoptera: Tenebrionidae) and Callosobruchus maculatus F. (Coleoptera: Bruchidae) was investigated in a series of laboratory experiments. Fumigant toxicity was assessed at 27±1°C and 65±5% R.H., in dark condition. Dry seeds of the plant were subject to hydrodistillation using a Clevenger-type apparatus. The composition of essential oil was analyzed by gas chromatography mass spectrometry. The predominant components in the oil were linalool (57.57%) and geranyl acetate (15.09%). The mortality of 1–7-day-old adults of the insect pests increased with concentration from 43 to 357 μL/L air and with exposure time from 3 to 24 h. In the probit analysis, LC50 values (lethal concentration for 50% mortality) showed that C. maculatus (LC50 = 1.34 μL/L air) was more susceptible than T. confusum (LC50 = 318.02 μL/L air) to seed essential oil of this plant. The essential oil of C. sativum can play an important role in stored grain protection and reduce the risks associated with the use of synthetic insecticides.

scholarly journals Analysis of the Essential Oils of Eucalyptus camaldulensis Dehnh. and E. viminalis Labill. as a Contribution to Fortify Their Insecticidal Application

2020 ◽  
Vol 15 (9) ◽  
pp. 1934578X2094624
Author(s):  
Asgar Ebadollahi ◽  
William N. Setzer
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Insect Pests ◽  
Sitophilus Oryzae ◽  
Eucalyptus Camaldulensis ◽  
Eucalyptus Species ◽  
Chemical Compositions ◽  
Fumigant Toxicity ◽  
Oryzaephilus Surinamensis ◽  
Synthetic Chemicals

The use of synthetic chemicals, with harmful effects on the environment and human health, is the principal strategy in the management of stored-product insect pests such as Oryzaephilus surinamensis and Sitophilus oryzae. Various studies in recent years have highlighted the possibility of using plant essential oils as available and low-risk factors in insect pest management. Therefore, in the present study, the possibility of controlling O. surinamensis and S. oryzae was investigated using Eucalyptus camaldulensis and Eucalyptus viminalis leaf essential oils. The essential oils were obtained by hydrodistillation of the leaves of the 2 Eucalyptus species, and the chemical compositions were determined by gas chromatographic-mass spectral analysis. The essential oil of E. camaldulensis was dominated by p-cymene (24.8%), cryptone (18.9%), and spathulenol (12.4%), while the major components in E. viminalis essential oil were 1,8-cineole (51.6%) and α-pinene (15.8%). The essential oils displayed promising fumigant toxicity against insect pests, which was positively dependent on utilized concentrations and exposure times. Oryzaephilus surinamensis, with low median lethal concentrations, was more susceptible than S. oryzae to the essential oils after 24, 48, and 72 hours. Also, E. viminalis essential oil, with a high level of insecticidal monoterpenes such as 1,8-cineole and α-pinene, was more toxic to insect pests than E. camaldulensis oil. According to the results of the current study, E. camaldulensis and E. viminalis essential oils, rich in insecticidal terpenes, can be alternative candidates to synthetic chemicals in the management of O. surinamensis and S. oryzae.

scholarly journals Larvicidal effects of eight essential oils against Plodia interpunctella and T. castaneum, serious pests of stored products worldwide

2018 ◽  
Vol 50 (1) ◽  
Author(s):  
J. Brari ◽  
D.R. Thakur
Keyword(s):  
Essential Oils ◽  
Insect Pests ◽  
Plodia Interpunctella ◽  
Fumigant Toxicity ◽  
Stored Products ◽  
Immature Stages ◽  
Cinnamomum Zeylanicum ◽  
Thuja Occidentalis ◽  
Zanthoxylum Armatum ◽  
Artemisia Maritima

Fumigant toxicity of eight essential oils obtained by hydrodistillation from eight plant species viz. Artemisia maritima L., Cinnamomum zeylanicum Blume, Citrus hystrix DC., Colebrookea oppositifolia Sm., Pelargonium hortorum Bailey, Rabdosia rugosa Wall. ex Benth, Thuja occidentalis L. and Zanthoxylum armatum DC. were tested against different immature stages of Tribolium castaneum (Herbst) and Plodia interpunctella (Hubner) both are serious pests of stored products worldwide. 8-10 day and 18-20 day old larvae of P. interpunctella and T. castaneum were used for the bioassay. R. rugosa oil gave 80.03±5.6% mortality at 100 µl/ml followed by 72.28±4.9% at 50 µl/ml against 8-10 day old larvae. Whereas 65.47±2.9% mortality at 100 µl/ml followed by 62.09±1.8% mortality at a dose of 50 µl/ml was obtained against 18-20 day old larvae of T. castaneum after 120 hrs. At a lowest concentration of 10 µl/ml R. rugosa oil produced 53.8.33±2.2 % mortality for 8-10 day old larvae and a mortality of 40.55±3.9% respectively was obtained for 18-20 day old larvae of P. interpunctella after 120 hrs. Among eight essential oils tested R. rugosa had the highest toxicity followed by A. maritima, C. zeylanicum, Z. armatum, T. occidentalis, P. hortorum, C. oppositifolia and C. hystrix against both the insect pests. The results obtained also showed that tolerance increases as the immature stages grow older and 18-20 day old larvae were least susceptible to all the treatments as compared to 8-10 days old larvae. Larvae of T. castaneum were found to be most susceptible for all treatments than P. interpunctella.

scholarly journals Sensory Quality of Essential Oils and Their Synergistic Effect with Diatomaceous Earth, for the Control of Stored Grain Insects

Insects ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 114 ◽  
Author(s):  
Erika Carla Pierattini ◽  
Stefano Bedini ◽  
Francesca Venturi ◽  
Roberta Ascrizzi ◽  
Guido Flamini ◽  
...  
Keyword(s):  
Essential Oils ◽  
Sensory Quality ◽  
Insect Pests ◽  
Synergistic Effects ◽  
Storage Conditions ◽  
Practical Application ◽  
Stored Grain ◽  
Foeniculum Vulgare ◽  
Stored Grain Insects

Essential oils (EOs) have gained increasing interest as a low-toxic, eco-friendly alternative to synthetic repellents and insecticides against insect pests. However, they have scarce practical application in the protection of stored grain because of their limited efficacy and their interference with the organoleptic properties of the grain. In this study, we evaluated the olfactory profile of the EOs of Foeniculum vulgare, Pistacia lentiscus, and Ocimum basilicum, and their toxicity against the main stored grain pest Sitophilus granarius. Trained assessors identified O. basilicum and F. vulgare, as more suitable than the P. lentiscus EO for the wheat treatment. In laboratory tests, the most toxic EO was the P. lentiscus (LC50 = 36.36 μL∙kg−1) while, the least toxic, was the F. vulgare one (LC50 = 77.59 μL∙kg−1). The EOs were also tested combined with diatomaceous earths (DEs) showing synergistic effects (co-toxicity coefficient values ranging from 1.36 to 3.35 for O. basilicum and F. vulgare EOs, respectively). Overall, O. basilicum resulted as the best EO for the wheat treatment, considering its insect toxicity and olfactory profile. In real storage conditions, the wheat co-treated with O. basilicum EO and DEs showed a significantly lower mean infestation (1.5 insect kg−1) than the non-treated wheat (7.0 insect kg−1).

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