Monitoring was carried out in 2014 in apple orchards Starý Lístovec (Brno-venkov). The effectiveness of environmentally friendly (Quassia amara, Spruzit-Flussig, SpinTor), synthetic insecticide Calypso 480 SC (thiacloprid) in combination with orange oil PREV-B2 on hibernating adults were compared. The results were inconclusive due to inclement weather conditions. The most attractive variety were triploid variety Jonagold and second Champion. The influence of selected products (Quassia amara Spruzit-Flussig, SpinTor, Calypso 480 SC) on mortality and activity of apple blossom weevil was investigated in laboratory 24, 48, and 120 hours after application. Degree of leaf damage (%) 120 hours after application was evaluated. The highest efficiency (88% mortality) reached SpinTor (spinosad) 120 hours after application, other products only temporary paralyzed adults. Spruzit-Flussig, SpinTor and Calypso 480 SC inhibit the activity of apple blossom weevil, they may reduce damage by pests, and therefore they can be recommended for application in the spring during feeding of adults.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:250338 |
| Date | January 2015 |
| Creators | Vaverková, Jana |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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