Potential of low application rate combinations of three chitin synthesis inhibitor insecticides with spinosad for the control of Sitophilus oryzae on stored wheat

Gad, Hassan A.; Al-Anany, Mohamed S.; Atta, Ayman M.; Abdelgaleil, Samir A. M.

doi:10.1016/j.jspr.2021.101926

Cited by 19 publications

(9 citation statements)

References 28 publications

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“…The combinations of B. bassiana and DE Protect-It, as well as each formulation alone, provided significantly lower progeny production than controls, even 120 days post-application [14]. The suppression of insect offspring production is a crucial parameter because it reduces grain damage [61,62]. For instance, three insecticides that inhibit chitin synthesis and spinosad (alone and combined) applied on wheat caused the reduction of offspring production of S. oryzae and grain weight loss [61].…”

Section: Discussionmentioning

confidence: 99%

Entomopathogenic Fungus and Enhanced Diatomaceous Earth: The Sustainable Lethal Combination against Tribolium castaneum

et al. 2023

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This study determined the efficacy of the Beauveria bassiana (Balsamo-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae) alone or combined with the diatomaceous earth DEA (a mixture of DE + abamectin) against adults and larvae of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). DEA was evaluated at 50 ppm while the fungi at 1.6 × 105, 1.6 × 106, and 1.6 × 107 conidia/kg wheat). Mortalities were assessed after 7 or 14 days of exposure, while progeny reduction in adults after 30, 60, 90, or 120 days. The radial fungus growth was significantly affected by the dose of DEA. Mortalities were higher in the combined treatments compared to the application of DEA or B. bassiana alone for both larvae and adults. Larvae were more susceptible than adults in all treatments and exposure intervals. Insect survival and progeny production were recorded for four months. Significantly fewer progeny was noted on wheat treated with DEA + B. bassiana treatments compared with control. The maximum number of mycosed cadavers and the rate of sporulation were observed at the lowest dose of B. bassiana alone, followed by the higher doses gradually. These findings indicate that the DEA + B. bassiana combinations can efficiently control T. castaneum, providing long-term protection of wheat.

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Section: Discussionmentioning

confidence: 99%

Entomopathogenic Fungus and Enhanced Diatomaceous Earth: The Sustainable Lethal Combination against Tribolium castaneum

et al. 2023

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“…The seed protective e cacy of the tested insecticides on cowpea seeds may be due to the mortality rate of parental adults of two insect species after treatments as well as the effect of tested insecticides on fecundity, fertility and immature stages. Similarly, the tested insecticides have been described as effective protectants against several insect pests of stored grains 23,24,25,35,38 .…”

Section: Discussionmentioning

confidence: 97%

“…Awais et al 40 stated that lufenuron induced 66.4% larval mortality of Trogoderma granarium (Everts) (Coleoptera: Dermestidae) after 21 days. Gad et al 23 showed that wheat grains treated with 1.0 mg/kg of chlor uazuron and hexa umuron induced adult mortality of S. oryzae (33.6 and 35.2%), respectively, after 21 days. The same insecticides at 2.0 mg/kg induced adult mortality of C. maculatus (44.6 and 54.2%) and C. chinensis (42.9% and 45.2%) after 7 days on cowpea seeds 24 .…”

Section: Discussionmentioning

confidence: 99%

“…Dokki 331 and 9.7% m.c.) were treated separately with CSIs or oxymatrine at application rate 5.0 mg/kg 23,33,48 . The stocks of tested CSIs were prepared in acetone while distilled water was used for preparation stock of oxymatrine.…”

Section: Bioassaysmentioning

confidence: 99%

“…Several studies have been widely proved that CSIs impair development and reproduction of stored product insects [19][20][21][22][23][24][25] .…”

Section: Introductionmentioning

confidence: 99%

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Long term efficacy of three chitin synthesis inhibitors and oxymatrine as cowpea seed protectants against Callosobruchus maculatus and Callosobruchus chinensis

Gad

Al-Ayat

Mohamed

et al. 2023

Preprint

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The residual efficacy of three chitin synthesis inhibitors (CSIs) (chlorfluazuron, hexaflumuron and lufenuron) and oxymatrine at an application rate of 5.0 mg/kg was evaluated against Callosobruchus maculatus and Callosobruchus chinensis monthly for 5 consecutive months (6 bioassays). In each bioassay, the mortality of two insect adults was counted after 7 days, progeny reduction and cowpea weight loss percentages were recorded after 45 days. Our results revealed that CSIs caused high level of adult mortality of both insects and oxymatrine caused a complete adult mortality (100%) for five months storage. The tested CSIs produced a significant progeny reduction of C. maculatus and C. chinensis but did not achieve a complete reduction of F1 progeny during all storage periods. A complete progeny suppression of two insects and full cowpea seed protection were observed in all oxymatrine treatments during the entire storage periods. A remarkable protection of cowpea seeds was also achieved in the treatments with CSIs particularly chlorfluazuron during the first 3 months. These findings indicate CSIs and oxymatrine could be implemented in IPM of these insects.

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A winning formula: sustainable control of three stored-product insects through paired combinations of entomopathogenic fungus, diatomaceous earth, and lambda-cyhalothrin

Wakil,

Kavallieratos,

Eleftheriadou

et al. 2024

Environ Sci Pollut Res

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This research aimed to assess the effectiveness of Metarhizium robertsii, diatomaceous earth (Protect-It), and lambda-cyhalothrin, for the long-term protection of stored wheat against three destructive grain insect pests, Rhyzopertha dominica, Tribolium castaneum, and Trogoderma granarium. Different treatments were applied, both alone and in paired combinations in laboratory and persistence trials. Single treatments exhibited significantly lower mortality rates in comparison to the paired treatments for all tested insect species. Among the single treatments, lambda-cyhalothrin (Lamb) resulted in significantly higher mortality rates in laboratory trials, followed by diatomaceous earth (DE) and M. robertsii (Mr), with insignificant differences between Mr and DE. Evidently, DE exhibited the highest persistence after 120 days of storage for all insect species and initial exposures, although variations in mortality rates among treatments were mostly insignificant. Overall, the most effective treatment in terms of mortality in laboratory, and persistence trials, and progeny production was DE + Lamb, followed by Mr + Lamb, and Mr + DE for all tested insect species. In general, the most susceptible insect species was R. dominica, followed by T. castaneum and T. granarium. This research highlights the effectiveness of M. robertsii, DE, and lambda-cyhalothrin in providing prolonged protection of stored wheat against all the examined grain insect species.

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Potential of low application rate combinations of three chitin synthesis inhibitor insecticides with spinosad for the control of Sitophilus oryzae on stored wheat

Cited by 19 publications

References 28 publications

Entomopathogenic Fungus and Enhanced Diatomaceous Earth: The Sustainable Lethal Combination against Tribolium castaneum

Entomopathogenic Fungus and Enhanced Diatomaceous Earth: The Sustainable Lethal Combination against Tribolium castaneum

Long term efficacy of three chitin synthesis inhibitors and oxymatrine as cowpea seed protectants against Callosobruchus maculatus and Callosobruchus chinensis

A winning formula: sustainable control of three stored-product insects through paired combinations of entomopathogenic fungus, diatomaceous earth, and lambda-cyhalothrin

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