Naslov (eng)

SustainableWireworm Control in Wheat via Selected Bacillus thuringiensis Strains: A Biocontrol Perspective

Autor

Dervišević Milenković, Marina
Knežević, Magdalena
Jovković, Marina
Maksimović, Jelena
Buzurović, Uroš
Pavlović, Jelena
Buntić, Aneta

Opis (eng)

Abstract: Wireworms are often referred as a hardly manageable group of pests due to their unstable lifestyle and uneven distribution in soils. The current strategy of wireworm control involves the heavy use of chemical pesticides. To find an effective and eco-friendly biological control agent against wireworms, evaluation of bacterial properties and insecticidal effects of six Bacillus thuringiensis (Bt) strains against Agriotes lineatus was performed under laboratory conditions. The presence of cry11, cyt2 and krsA gene was detected in Bt strain BHC 2.4, while the same strain had the ability to produce siderophores, protease, amylase and cellulase. Single inoculums of Bt strains (BHC 2.4; BHC 4.5; BHC 4.7; 1.5; 4.3; 6.1) showed mortality against Agriotes lineatus larvae in the range of 6.67–72.22%. However, the compatible Bt dual cultures showed significantly higher efficiency in comparison with the single inoculums, with the highest efficiency of 79.63% recorded for Bt strain BHC 2.4 + Bt strain 1.5. The efficiency of applied Bt strains might be associated with the presence of genes coding for antibiotics and toxins. Therefore, the use of selected Bt strains applied in a form of compatible mixes could offer a sustainable solution for wireworm management in wheat.

Jezik

engleski

Datum

2025

Licenca

© All rights reserved

Predmet

Agriotes lineatus; entomopathogenic bacteria; biocontrol; microbial inoculant; wheat protection

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Institut za zemljište