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CONTROLE DE DOENÇAS DO MORANGUEIRO COM ÓLEOS ESSENCIAIS E Trichoderma spp.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lorenzetti, Emi Rainildes |
| Copyright Year | 2012 |
| Abstract | The strawberry crop is severely affected by various diseases, like anthracnose and gray mold. A serious problem in this crop is pesticide residues. The aim of this work was evaluate the use of different controls to the biggest strawberry diseases, gray mold (Botrytis cinerea) and anthracnose (Colletotrichium sp.). Twelve essential oils were tested, rosemary (Rosmarinus officinalis), peppermint (Mentha piperita) lavandim (Lavandula hybrida), tea tree (Melaleuca alternifolia), cinnamon (Cinnamomum zeilanicum), clove (Syzigium aromaticum), eucalyptus (Corymbia citriodora), citronella (Cymbopogon nardus), lemongrass (Cymbopogon citratus), palmarosa (Cymbopogon martini), orange (Citrus sinensis var. dulcis) and tangerine (Citrus nobilis var. tangerinae), which were analyzed for chemical composition in the gas chromatograph. After, experiments were performed in vitro conditions to analyze the effect of essential oils and the antagonist Trichoderma. The oils that showed the best results in this experiments were selected and performed in vivo experiments in laboratory (cut leaves test), field and post-harvest (with three different methodologies, immersion, starch coating and vaporization). Using in vitro tests and cut leaves test, 1000 ppm concentration was selected, as well as cinnamon, lemon grass and mint essential oils; for field testing. Some of antagonists employed were favorable to pathogens control. For field tests were used Oso Grande and Aromas strawberry cultivars. For Aromas, production was influenced by essential oils applications, likely due the flowering and/ or pollination has been affected. To Oso Grande there were no differences in the production. The chemical characteristics variables analyzed for fruits and decay presence were not affected by oils applications. For post-harvest treatment just immersion with eucalyptus essential oil decreased fruit rots. There was fruit discoloration with incidence increase for cinnamon and lemon grass oils. Treatments with volatilization and starch coating were not efficient. Treatments with essential oils showed potential in vitro, in vivo require further research, then, they can be effectively employed in the field. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://repositorio.ufla.br/jspui/bitstream/1/451/1/TESE%20Controle%20de%20doen%C3%A7as%20do%20morangueiro%20com%20%C3%B3leos%20essenciais%20e%20Trichoderma%20spp..pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
