scholarly journals iocidal effects of acetone based plant extracts of Murraya exotica, Murraya koenigii and Nicotiana tabacum on stored Grain insect pest, Tribolium castaneum

2013 ◽  
Vol 3 (12) ◽  
pp. 44-49
Keyword(s):  
Nicotiana Tabacum ◽  
Tribolium Castaneum ◽  
Plant Extracts ◽  
Insect Pest ◽  
Murraya Koenigii ◽  
Stored Grain ◽  
Murraya Exotica

The Potency of Six Medicinal Plant Extracts Against the Stored Grain Insect Pest Sitophilus granarius L.

2021 ◽  
Vol 39 (4) ◽  
pp. 323-328
Author(s):  
Nilesh Baburao Jawalkar ◽  
◽  
Sureshchandra Popat Zambare ◽  
Mohamed Izzat Al Ghannoum ◽  
◽  
...  
Keyword(s):  
Mortality Rate ◽  
Plant Extracts ◽  
Insect Pest ◽  
Mucuna Pruriens ◽  
Xanthium Strumarium ◽  
Vitex Negundo ◽  
Sitophilus Granarius ◽  
Stored Grain ◽  
Medicinal Plant Extracts ◽  
Stored Grains

Jawalkar, N.B., S.P. Zambare and M.I. Al Ghannoum. 2021. The Potency of Six Medicinal Plant Extracts Against the Stored Grain Insect Pest Sitophilus granarius L. Arab Journal of Plant Protection, 39(4): 323-328. https://doi.org/10.22268/AJPP-039.4.323328 This study was conducted on six medicinal plants viz., Vitex negundo (leaves), Xanthium strumarium, Caesalpinia bonduc, Mucuna pruriens, Moringa oleifera (seed kernels), Tagetes erecta (petals) for their bio-insecticidal activity. The powders of various parts of plants were extracted using the MARS6 microwave acid digestion system. Three different concentrations (20, 30, and 40%) of plant extracts were tested against granary weevil, Sitophilus granarius L. (Coleoptera: Curculionidae) for their bio-insecticidal activities under laboratory conditions. The results of statistical analysis showed a good performance of all plant extracts, especially at the high concentrations of the extracts, where they showed different levels of insect mortality and their developmental rate was also reduced leading to significant reduction in insect numbers. The mortality rate ranged was 0-100% with S. granarius adults (p < 0.01). There was significant correlation (R=1) between mortality rate and the concentration of plant extracts. However, the extract of Mucuna pruriens with solvents (Acetone + Petroleum Ether) showed the highest mortality rate of 100% at the three concentrations used (p < 0.01), whereas, the lowest average mortality of 43.3% (p < 0.01) was observed with Xanthium strumarium and Vitex negundo extracts with solvents (Methanol + n-Hexane) compared with 0% mortality in the control. All plant extracts have revealed insecticidal as well as propitious protective effect on grains, and it can be selected as effective control treatment after proper dose formulation to prevent weevil infestation in stored grains. Keywords: Bioinsecticide, stored grains, Sitophilus granarius, mortality, medicinal plants, MARS 6.

scholarly journals A Laboratory Evaluation for the Potential of Entomopathogenic Fungi against Tribolium castaneum (Herbst.) (Coleoptera: Tenebrionidae)

2020 ◽  
Vol 8 (6) ◽  
pp. 1232-1235
Author(s):  
Muhammad Akmal ◽  
Shoaib Freed ◽  
Muhammad Bilal ◽  
Muhammad Naeem Malik
Keyword(s):  
Tribolium Castaneum ◽  
Insect Pest ◽  
Tween 80 ◽  
Pathogenic Fungi ◽  
Laboratory Evaluation ◽  
Stored Grain ◽  
Larval Stages ◽  
Insect Pathogenic Fungi ◽  
Mortality Percentage ◽  
Coleoptera Tenebrionidae

The red flour beetle is a very important primary insect pest of wheat worldwide. The experiments were performed to check the virulence of Beauveria bassiana and Isaria fumosorosea by insect dipping method on the adults and 2nd instar of Tribolium castaneum. Conidia were taken from 15 days old fungi and subsequently four concentrations i.e., 2×108, 3×108, 4×108 and 5×108 spores/ml of both fungi were prepared in 0.05% Tween 80 solution. Minimum 12.5% and maximum 32.5% mortality of adult insects was recorded on 7th day after the treatment at 2×108 and 5×108 spores/ml concentrations of B. bassiana, respectively while on larval stages, minimum 2.5% on 5th day and maximum 80.0% mortality was observed on 7th day post treatment of B. bassiana, respectively. On the other side, minimum 7.5 and maximum 22.5 mortality percentage was noted on 7th day post application of I. fumosorosea, respectively while on immatures minimum 5% on 6th day and highest 70% mortality was noted on 7th day post infection with 2×108 and 5×108 spores/ml of I. fumosorosea, correspondingly. This study showed the effectiveness of insect pathogenic fungi against the important stored grain insect pest and proved to be a positive management strategy.

scholarly journals Effectiveness of different plant extracts along with new chemistry insecticide against Tribolium castaneum

2020 ◽  
Vol 13 (1) ◽  
pp. 095-100
Author(s):  
Shaker Muhammad Afsar Ali ◽  
Asif Muhammad Ammad ◽  
Shahzad Khalil Ahmad ◽  
Ikhlaq Muhammad Bilal ◽  
Arshad Abdullah ◽  
...  
Keyword(s):  
Tribolium Castaneum ◽  
Plant Extracts ◽  
Zingiber Officinale ◽  
Datura Stramonium ◽  
Time Interval ◽  
Stored Grain ◽  
Mean Values ◽  
Significant Difference ◽  
Stored Grains ◽  
The Mean

Different insect pests attack stored grain products during storage. T. castaneum are the most threatening pests of stored grains. Feeding of adults and larvae is stored grains. The extracts of Datura stramonium and Zingiber officinale prepared with acetone and Deltamethrin was applied. Five concentrations 0.01%, 0.02%, 0.03%, 0.04%, 0.05% were prepared with one controlled concentration of both the plants and the Deltamethrin. Treatments were applied on the filter paper check their possible lethal effects against T. castaneum. The data concerning mortality was recorded after time interval 24, 48 and 72 hours and analyzed statistically using ANOVA (analysis of variance) and comparison of means of treatment means was analyzed with the help of Tuckey’s honestly significant difference (THSD) test. The mean mortality of Tribolium castaneum were 90% after 72 hours by exposure of Deltamethrin. The mean values of % mortality caused by effect of Datura stramonium against T. castaneum was 52%. The mean values of % mortality caused by plant extract Zingiber officinale against T. castaneum was 41% after 72 hours. Results revealed that Deltamethrin is more effective than plant extracts. Datura stramonium is more effective than Zingiber officinale.

Bioefficacy of enhanced diatomaceous earth and botanical powders on the mortality and progeny production of Acanthoscelides obtectus (Coleoptera: Chrysomelidae), Sitophilus granarius (Coleoptera: Dryophthoridae) and Tribolium castaneum (Coleoptera: Tenebrionidae) in stored grain cereals

2017 ◽  
Vol 37 (04) ◽  
pp. 243-258 ◽  
Author(s):  
Charles Adarkwah ◽  
Daniel Obeng-Ofori ◽  
Vanessa Hörmann ◽  
Christian Ulrichs ◽  
Matthias Schöller
Keyword(s):  
Tribolium Castaneum ◽  
Diatomaceous Earth ◽  
Adult Mortality ◽  
Botanical Insecticides ◽  
Management Approach ◽  
Sitophilus Granarius ◽  
Progeny Production ◽  
Acanthoscelides Obtectus ◽  
Stored Grain ◽  
Plant Powders

Abstract Food losses caused by insects during postharvest storage are of paramount economic importance worldwide, especially in Africa. Laboratory bioassays were conducted in stored grains to determine the toxicity of powders of Eugenia aromatica and Moringa oleifera alone or combined with enhanced diatomaceous earth (Probe-A® DE, 89.0% SiO2 and 5% silica aerogel) to adult Sitophilus granarius, Tribolium castaneum and Acanthoscelides obtectus. Adult mortality was observed up to 7 days, while progeny production was recorded at 6–10 weeks. LD50 and LT50 values for adult test insects exposed to plant powders and DE, showed that A. obtectus was the most susceptible towards the botanicals (LD50 0.179% and 0.088% wt/wt for E. aromatica and M. oleifera, respectively), followed by S. granarius. Tribolium castaneum was most tolerant (LD50 1.42% wt/wt and 1.40% wt/wt for E. aromatica and M. oleifera, respectively). The combined mixture of plant powders and DE controlled the beetles faster compared to the plant powders alone. LT50 ranged from 55.7 h to 62.5 h for T. castaneum exposed to 1.0% M. oleifera and 1.0% DE, and 0.5% E. aromatica and 1.0% DE, respectively. Botanicals caused significant reduction of F1 adults compared to the control. Combined action of botanical insecticides with DE as a grain protectant in an integrated pest management approach is discussed.

scholarly journals Pathogenicity of Pakistani isolates of Steinernema bifurcatum and S. affine (Rhabditida: Steinernematidae) in management of stored grain pests Lasioderma serricorne and Tribolium castaneum (Coleoptera: Ptinidae, Tenebrionidae)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Tabassum Ara Khanum ◽  
Salma Javed
Keyword(s):  
Biological Control ◽  
Tribolium Castaneum ◽  
Biological Control Agent ◽  
Economic Loss ◽  
Research Area ◽  
Control Agent ◽  
Lasioderma Serricorne ◽  
Stored Grain ◽  
Insect Infestations ◽  
Stored Grain Pests

Abstract Background Stored grain products suffer a considerable economic loss due to insect infestations. The resistance of pests to insecticide, and residues on crops are produced by the application of insecticide. Nowadays, incremental necessity has been occurred to find out alternatives to chemicals. As biological control agents, entomopathogenic nematodes (EPNs) attract attention increasingly in the research area recently. Results The aim of the study was to evaluate the pathogenicity of Pakistani isolates Steinernema bifurcatum and S. affine against the stored grain pests, Tribolium castaneum and Lasioderma serricorne, under laboratory conditions. Suspensions of nematodes were applied at 4 different concentrations 0, 50, 100, and 200 IJs/ml and 3 variable temperatures 15, 30, and 45°C. Pathogenicity rate was recorded after 48 h of application. The larval stage is found more susceptible than the adult. At 200 IJs, S. bifurcatum showed high mortality of L. serricorne larva (92%) and T. castaneum larva (93%), whereas S. affine showed 90 and 95% mortality of L. serricorne and T. castaneum larva, respectively, at 200 IJs. The results revealed that both species of EPN were able to control and reproduce on L. serricorne and T. castaneum. Maximum mortality was recorded at 45 °C from S. bifurcatum whereas S. affine at 15 °C. Conclusions Therefore, S. bifurcatum and S. affine could be suggested as a biological control agent for hot and cold climatic zones, respectively.

Cucumber vs Ants: a Case Against the Myth of the Uses of Plant Extracts in Insect Pest Management

Sociobiology ◽  
2021 ◽  
Vol 68 (2) ◽  
pp. 5813
Author(s):  
Matan Shelomi ◽  
Bo-Jun Qiu ◽  
Lin-Ting Huang
Keyword(s):  
Plant Extracts ◽  
Scientific Evidence ◽  
Insect Pest ◽  
Management Strategies ◽  
Cost Effective ◽  
Detectable Effect ◽  
Realistic Situation ◽  
Potential Impact ◽  
High Concentrations ◽  
Ant Repellent

An accumulation of questionable scientific reports on the use of natural plant extracts to control household pest insects, using biologically irrelevant experimental designs and extremely high concentrations, has resulted in a publication bias: “promising” studies claiming readily available plants can repel various insects, including social insects, despite no usable data to judge cost-effectiveness or sustainability in a realistic situation. The Internet provides a further torrent of untested claims, generating a background noise of misinformation. An example is the belief that cucumbers are “natural” ant repellent, widely reported in such informal literature, despite no direct evidence for or against this claim. We tested this popular assertion using peel extracts of cucumber and the related bitter melon as olfactory and gustatory repellents against ants. Extracts of both fruit peels in water, methanol, or hexane were statistically significant but effectively weak gustatory repellents. Aqueous cucumber peel extract has a significant but mild olfactory repellent effect: about half of the ants were repelled relative to none in a control. While the myth may have a grain of truth to it, as cucumber does have a mild but detectable effect on ants in an artificial setup, its potential impact on keeping ants out of a treated perimeter would be extremely short-lived and not cost-effective. Superior ant management strategies are currently available. The promotion of “natural” products must be rooted in scientific evidence of a successful and cost-effective implementation prospect.

scholarly journals Repellent Potential of Three Medicinal Plant Extracts against Tribolium castaneum (Coleoptera: Tenebrionidae)

2018 ◽  
Vol 33 (2) ◽  
Author(s):  
Habib-ur Rehman ◽  
Saima Mirza ◽  
Mansoor-ul Hasan ◽  
Qurban Ali ◽  
Hafiz Abdullah Shakir ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Tribolium Castaneum ◽  
Plant Extracts ◽  
Medicinal Plant Extracts ◽  
Coleoptera Tenebrionidae
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