Efficacy of some bioinsecticides against the Colorado potato beetle Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) under laboratory conditions
| dc.contributor.author | Atanasova, Daniela | |
| dc.contributor.author | Vasilev, Pavlin | |
| dc.date.accessioned | 2024-11-20T11:54:17Z | |
| dc.date.available | 2024-11-20T11:54:17Z | |
| dc.date.issued | 2020-07-22 | |
| dc.description.abstract | The efficacy of three bioinsecticides: the microbial Naturalis (Beauveria bassiana), the botanical Pyrethrum FS EC (pyrethrin + sesame oil + soft potassium soap) and NeemAzal T/S (azadirachtin), allowed for application in organic farming in Bulgaria, against larvae and adults of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) was studied under laboratory conditions. The best results from the tested products showed microbial insecticide Naturalis (Beauveria bassiana). At a concentration of 0.2%, the efficacy reached 78.4% and 68.4% on the 5-th day for larvae and adults, respectively, and 100% on the 7-th day after the treatment for both larvae and adults. The preparation showed very good action in its low concentration (0.1%) – efficacy was 88.5% and 68.5% on the 7-th day after the treatment for larvae and adults, respectively. Insecticides based on plant extracts showed very good results. The botanical insecticide Pyrethrum FS EC showed a fast initial action and good effectiveness. At a concentration of 0.1%, the efficacy reached 96.5% and 86.5% on the 5-th day for larvae and adults, respectively, and 100% on the 7-th day after the treatment for both. The botanical insecticide NeemAzal T/S at a concentration of 0.3% the efficacy was 81.8% and 63.7% for larvae and adults, respectively on the 7-th day after the treatment. At its low concentration of 0.1%, the NeemAzal T/S had insufficient effect and efficacy was only was 59.3% and 29.8% on the 7-th day after the treatment for larvae and adults, respectively. | |
| dc.identifier.issn | 1314-6246 | |
| dc.identifier.uri | https://doi.uni-plovdiv.bg/handle/store/390 | |
| dc.language.iso | en | |
| dc.publisher | Plovdiv University Press “Paisii Hilendarski” | |
| dc.subject | bioinsecticides | |
| dc.subject | Beauveria bassiana | |
| dc.subject | Naturalis | |
| dc.subject | Pyrethrum FS EC | |
| dc.subject | NeemAzal T/C | |
| dc.subject | Leptinotarsa decemlineata | |
| dc.title | Efficacy of some bioinsecticides against the Colorado potato beetle Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) under laboratory conditions | |
| dc.type | Article |