Soil application of Beauveria bassiana JEF-350 granules to control melon thrips, thrips palmi Karny (Thysanoptera: Thripidae)
| Autor: | Jae Su Kim, Se Jin Lee, Mi Rong Lee, Dongwei Li, Jong Cheol Kim, So Eun Park |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine education.field_of_study biology Thrips Melon fungi Population food and beverages Beauveria bassiana Bassiana Thripidae biology.organism_classification 01 natural sciences Fungicide 010602 entomology 03 medical and health sciences Horticulture 030104 developmental biology Insect Science Thrips palmi education |
| Zdroj: | Journal of Asia-Pacific Entomology. 24:636-644 |
| ISSN: | 1226-8615 |
| Popis: | The melon thrip, Thrips palmi Karny, is a worldwide pest that causes severe damage to a wide range of host plants. Current management mainly relies on sprayable synthetic chemicals that target adult, egg, and larval stages. However, these chemicals have adverse effects on the environment and induce resistance in thrips. An alternative environmentally sound management method with a different mode of action, targeting the soil-dwelling stage of thrips, was considered in this work. Bioassay of seven Beauveria bassiana isolates under laboratory conditions revealed that two isolates, JEF-350 and JEF-341, were highly virulent against melon thrips. Conidial production and thermotolerance of JEF-341 and JEF-350 were compared with those of the commercial isolate B. bassiana ERL836 (Chongchaesak GR). B. bassiana JEF-350 showed similar conidial production to ERL836 but had significantly higher thermotolerance than JEF-341 and ERL836. Dose-dependent virulence of JEF-350 was tested in pot and field conditions, and JEF-350 millet-based fungal granules were applied to the soil surface to target the pupal stage of melon thrips. In the pot and field trials, JEF-350 granules significantly reduced thrip population with greater efficacy than JEF-341 and ERL836 granules. In application, JEF-350 needs to be carefully applied when in combination with chemical fungicides to ensure survival. Our results suggest that B. bassiana JEF-350 could be effectively used to control the pupal stage of melon thrips in soil. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect