Evaluation of the insecticidal potential of two medicinal plants and an entomopathogenic fungi against Tribolium confusum Jacquelin du Val. (Coleoptera: Tenebrionidae), a pest of stored foods

Harmful insect species were investigated in soybean and sunflower seed samples mixed with weed seeds and stored for a short time in the open field in the Çukurova Region (Türkiye) including Adana, Mersin and Osmaniye Provinces in 2020. A total of 8 harmful insect species were found in the samples of stored soybean and sunflower seeds. Seeds of 12 weed species were detected in both soybean and sunflower seed samples. The red flour beetle, Tribolium castaneum (Herbsts, 1797) (Coleoptera: Tenebrionidae) was the major pest insect in both sunflower and soybean seeds. A few species of the rice weevil, Sitophilus oryzae (L. 1763) (Coleoptera: Curculionidae), which are the primary pest of stored cereals, were recorded under outdoor conditions. No insect feeding damage was observed on the seeds of both crops and also on the seeds of the weeds. Finally, the seeds of soybean and sunflower crops which were harvested and kept outside the warehouses, for a short time, were attacked by some stored pest insects particularly Tribolium spp. This issue may create a problem, in the case that harvested crops with insects are moved into the warehouse,which has suitable temperature and moisture for the pest insects to develop and multiply.

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Insect species and their abundance in sunflower and soybean seeds in warehouses in the Çukurova Region, Türkiye

Atakan

Tünk

Pehlivan

et al. 2023

Mediterranean Agricultural Sciences

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The effect of two isolates of Beauveria bassiana (Bals.) Vull. on the larvae of confused flour beetle [Tribolium confusum du Val., 1863 (Coleoptera: Tenebrionidae)]

BAYINDIR EROL,

ERDOĞAN,

KARACA

2023

International Journal of Agriculture Environment and Food Sciences

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The confused flour beetle cause economic losses in stored products, especially in products obtained from wheat. Although using insecticides against storage pests is an effective method, their frequent and continuous use can lead to resistance and toxicity issues in non-target organisms. In this study, the effect of local Beauveria bassiana isolates (BMAUM LD.2016 and BMAUM M6-4) on the 3rd instar larvae of confused flour beetle (Tribolium confusum) was determined under laboratory conditions. As a result of the experiment, both isolates of B. bassiana were found to be more effective on the larvae in the spraying method compared to the dipping method. In the spraying method, mortality rates on the 9th day were 72% in BMAUM LD.2016 isolate, 34% in the dipping method, respectively. Mortality rates of BMAUM M6-4 isolate were recorded as 96% in the spraying method and 8% in the dipping method. In the spraying method, the mortality date (LT50) was determined as 6.09 days for BMAUM LD.2016 isolate and 3.90 days for BMAUM M6-4 isolate. The LT50 value could not be calculated in the dipping method, since the mortality rates were below 50% for both isolates. BMAUM M6-4 isolate caused higher mortality in larvae than BMAUM LD.2016 isolate. As a result, B. bassiana isolates have shown a high level of effectiveness against T. confusum, demonstrating that they can be used as isolates for insect control.

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Evaluation of the insecticidal potential of two medicinal plants and an entomopathogenic fungi against Tribolium confusum Jacquelin du Val. (Coleoptera: Tenebrionidae), a pest of stored foods

Cited by 2 publications

References 18 publications

Insect species and their abundance in sunflower and soybean seeds in warehouses in the Çukurova Region, Türkiye

Insect species and their abundance in sunflower and soybean seeds in warehouses in the Çukurova Region, Türkiye

The effect of two isolates of Beauveria bassiana (Bals.) Vull. on the larvae of confused flour beetle [Tribolium confusum du Val., 1863 (Coleoptera: Tenebrionidae)]

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