Eski, A., Bayramoglu, Z., Sonmez, E., Biryol, S., Demir, I. (2022). Evaluation of the Effectiveness of Entomopathogens for the Control of Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). , 24(2), 393-405.
A. Eski; Z. Bayramoglu; E. Sonmez; S. Biryol; I. Demir. "Evaluation of the Effectiveness of Entomopathogens for the Control of Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)". , 24, 2, 2022, 393-405.
Eski, A., Bayramoglu, Z., Sonmez, E., Biryol, S., Demir, I. (2022). 'Evaluation of the Effectiveness of Entomopathogens for the Control of Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)', , 24(2), pp. 393-405.
Eski, A., Bayramoglu, Z., Sonmez, E., Biryol, S., Demir, I. Evaluation of the Effectiveness of Entomopathogens for the Control of Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). , 2022; 24(2): 393-405.

Evaluation of the Effectiveness of Entomopathogens for the Control of Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Journal of Agricultural Science and Technology
Article 11, Volume 24, Issue 2, 2022, Pages 393-405    PDF (494.5 K)
Document Type: Original Research
Authors
A. Eski1; Z. Bayramoglu2; E. Sonmez3; S. Biryol4; I. Demir* 4
1Bilecik Şeyh Edebali University, Vocational School, Program of Biomedical Equipment Technology, Bilecik, Turkey.
2Recep Tayyip Erdoğan University, Pazar Vocational School, Program of Medicinal and Aromatic Plants, Rize, Turkey.
3Düzce University, Beekeeping Research Development and Application Center, Düzce, Turkey.
4Karadeniz Technical University, Faculty of Sciences, Department of Biology, Trabzon, Turkey.
Abstract
Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) damages potato, tomato, and eggplant, and is one of the most serious agricultural pests all over the world. Due to its resistance against chemical insecticides and some biopesticides, new biocontrol agents compatible with different ecological conditions are needed urgently for the integrated pest management programs of this pest. For this purpose, we studied the insecticidal effects of thirteen indigenous microbial isolates including entomopathogenic bacteria, fungi, and nematodes from our culture collection against L. decemlineata with screening and dose-response tests under laboratory conditions. Bacillus thuringiensis strain Xd3 caused 83% and 73% mortality against larvae and adults of the pest at 109 CFU mL-1 concentration within 10 days, respectively. While fungal isolate Metarhizium anisopliae Gg-12 yielded 98% mortality with 107 conidia mL-1 concentration on larvae at 15 days, mortality provided by Gg-12 on adults reached 100% at the same concentration and period. Steinernema websteri AS1 was determined as the most effective entomopathogenic nematode with 92% mortality within seven days on larvae. Based on probit analysis, the LC50 values of B. thuringiensis Xd3 against larvae and adults were calculated as, respectively, 1.73×106 and 1.69×107 CFU mL-1, and that of M. anisopliae Gg12 were 1.18×104 and 6.2×103 conidia mL-1, and that of S. websteri AS1 was 117 IJs mL-1. Considering these results, the biopesticides developed from these isolates can be used safely and successfully in the pest management control programs of Colorado potato beetle.
Keywords
Microbial control; Bacillus thuringiensis; Metarhizium anisopliae; Steinernema websteri; Insecticidal activity
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