Residual efficacy of spinosad and spinetoram on traditional and new improved rice varieties on the mortality of Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae)

Dissanayaka, D.M.S.K.; Sammani, A.M.P.; Wijayaratne, L.K.W.

doi:10.1016/j.jspr.2020.101643

Cited by 15 publications

(5 citation statements)

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“…So, based on the results it can be assumed that this insecticide degrade during the storage period and doesnt remain stable after 5 months. Spinosad and spinetoram have been reported to remain effective during the 5 months of rice storage (Dissanayaka et al, 2020). There are various studies in which more than 25 % reduction in the spinosad residues is reported on wheat grains soon after treatment; but the remaing spinosad residues were found to be effective for 12 months of storage (Fang et al, 2002a;Daglish and Nayak, 2006).…”

Section: Resultsmentioning

confidence: 99%

“…The residual efficacy of spinosad varies with the type of grain commodity. It has been evaluated on different grain types (Fang et al, 2002b;Daglish and Nayak, 2006;Vayias et al, 2009Vayias et al, , 2010Dissanayaka et al, 2020;Gad et al, 2020). Furthermore, the residual efficacy of spinosad varies among insect species (Vayias et al, 2010;Bajracharya et al, 2013).…”

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confidence: 99%

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Evaluation of Spinosad Applied to Grain Commodities for the Control of Stored Product Insect Pests

Yasir¹,

Hasan²,

Sagheer³

et al. 2021

SJA

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S ynthetic insecticides are the currently used pest control method that causes quick mortality of the insects but there are harmful effects of these insecticides on the health (Arthur, 1996), environment (Phillips and Throne, 2010) and on non-targeted organisms (Fields, 1992). Stored grain insects also have developed resistance to these insecticides (Wijayaratne et al., 2018;Nayak et al., 2020). As the treated grains are consumed by human, there is a need to use reduced risk insecticides as an alternate to conventional insecticides (Arthur, 2007).Addionaly, these alternative options may be proven to have no harmfull effects on the respiratory and nervous system of humans (Phillips and Throne, 2010). Spinosad is an insecticide derived from soil borne bacteria Saccharopolyspora spinosa Mertz and Yao (1990). It is registered in several countries as a grain protectant at the maximum labelled use rate of 1 mg/Kg of grain and its Maximum Residue Limit (MRL) established at 1.5 ppm (Hertlein et al., 2011). The spinosad can persist from 6-12 months on the stored grain commodities (

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Evaluation of Spinosad Applied to Grain Commodities for the Control of Stored Product Insect Pests

Yasir¹,

Hasan²,

Sagheer³

et al. 2021

SJA

View full text Add to dashboard Cite

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“…Additionally, it is also necessary to evaluate the eff ects of exposure to the active ingredient and commercial formulation on crops because research focused on commercial formulations is likely to provide more realistic results on the overall ecotoxicological impact of specifi c BioPPPs. Despite the IPM strategy, these BioPPPs can have ecotoxicity and residual levels not expected for the crops, after application and compliance with the safety intervals [16,17,21,22]. Thus, although diff erent authors and entities, including the EU, consider BioPPPs as a low environmental risk in general, because of their rapid degradation, recent evidence suggests that residual amounts can even occur after the safety intervals, aff ecting non-target species, as crops [14][15][16][17]21,22].…”

Section: Biopesticides Backgroundmentioning

confidence: 99%

“…Despite the IPM strategy, these BioPPPs can have ecotoxicity and residual levels not expected for the crops, after application and compliance with the safety intervals [16,17,21,22]. Thus, although diff erent authors and entities, including the EU, consider BioPPPs as a low environmental risk in general, because of their rapid degradation, recent evidence suggests that residual amounts can even occur after the safety intervals, aff ecting non-target species, as crops [14][15][16][17]21,22]. So, is important to evaluate physiological indicators of growth performance in crops where these BioPPPS are used, with a particular focus on oxidative metabolism, since oxidative stress is a common consequence of in general toxicity xenobiotics, reactive oxygen species (ROS) production, and lipid peroxidation [23,24].…”

Section: Biopesticides Backgroundmentioning

confidence: 99%

Environmental Safety and Ecotoxicity of Biopesticides

Rodrigues¹

2022

J Biomed Res Environ Sci

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The growing increase in the world population, associated with increased demand for food, has promoted the increased use of synthetic Plant Protection Products (PPPs as pesticides) in agriculture, which can raise environmental concerns. Nowadays, it is generally believed that the use of Biopesticides (BioPPPs) may contribute to reducing the undesirable environmental effects usually associated with the use of synthetic pesticides. However, the risk assessment required by the EU Member States Authorities (EMSA) to evaluate the ecotoxicity of PPPs may not be the most suitable for BioPPPs due to their particular properties and mode of action that are distinct from those of synthetic PPPs.

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“…Larvae of this pest damage the product by eating the inside of the grain or living in flour and flour products. Adults are harmful by gnawing the outside of the grains (Dissanayaka et al, 2020). In some studies both in Turkey and other countries, it is reported that the adults cause weight loss in the stored grains and the damage reaches the economic level after 122 days from the contamination (Malagon and Trochez, 1985;Toğantimur and Özder, 2019).…”

Section: Introductionmentioning

confidence: 99%

Contact Toxicity of Hypericum Extracts against Rhyzopertha dominica (Fab.) (Coleoptera: Bostrichidae)

Yaman

Şimşek

2022

Tekirdağ Ziraat Fakültesi Dergisi

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Medicinal and aromatic plants have popular recently to investigate their usability as natural resources in many areas due to their superior biological activity properties. Hypericum genus contained important medicinal plant species known worldwide. In this study, the ethanol extracts from different plant parts (flower, leaf and stem) of three Hypericum perforatum, Hypericum heterophyllum, Hypericum scabrum were screened for their toxicity against adults of Rhyzopertha dominica (Coleoptera: Bostrichidae), an important insect of stored grains in many regions of the world. Insecticidal activity was analysed at 10 % concentration of ethanol extracts, and measurements were taken at three different exposure times (24, 48 and 72 hours). Considering the factors analyzed on this insect, Hypericum species, plant part, exposure time as well as the interaction of Hypericum species and plant part displayed a statistically significant effect. The mortality values of extracts from H. perforatum, H. heterophyllum and H. scabrum varied from 44.8 % to 88.9 %, 26.0 to 78.8 %, 26.1 % to 50.3 % for adult of R. dominca, respectively, after 72 h. H. perforatum showed a stronger effect than other species. Among plant parts, the leaf showed superior mortality on this insect. In addition, the mortality rate increased with increasing exposure time. According to the interaction between Hypericum species and the plant part, the leaf of H. perforatum (79.4 %) displayed the strongest mortality, followed by the leaf of H. heterophyllum (70.6 %). After 72 hours, the highest mortality was recorded in the leaf parts of H. perforatum. The current results showed that the extracts, in particular, the leaf extracts of H. perforatum and H. heterophyllum, may be evaluated as a new natural potential product of plant-derived insecticide because of its high mortality impact against R. dominica.

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Residual efficacy of spinosad and spinetoram on traditional and new improved rice varieties on the mortality of Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae)

Cited by 15 publications

References 50 publications

Evaluation of Spinosad Applied to Grain Commodities for the Control of Stored Product Insect Pests

Evaluation of Spinosad Applied to Grain Commodities for the Control of Stored Product Insect Pests

Environmental Safety and Ecotoxicity of Biopesticides

Contact Toxicity of Hypericum Extracts against Rhyzopertha dominica (Fab.) (Coleoptera: Bostrichidae)

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