Chemical Control of Corythucha arcuata (Say, 1832), an Invasive Alien Species, in Oak Forests
Autor: | Constantin Nețoiu, Ion Cătălin Petrițan, Romica Tomescu, Andrei Buzatu, Flavius Bălăcenoiu, Dragoș Toma, Dieter Carol Simon |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
0106 biological sciences
forest pests Population Climate change Context (language use) 010603 evolutionary biology 01 natural sciences Tingidae oak lace bug chemical control Forest ecology parasitic diseases QK900-989 forest health education Nymph Plant ecology Abiotic component education.field_of_study invasive alien species biology Ecology Heteroptera Forestry biology.organism_classification 010602 entomology |
Zdroj: | Forests Volume 12 Issue 6 Forests, Vol 12, Iss 770, p 770 (2021) |
ISSN: | 1999-4907 |
DOI: | 10.3390/f12060770 |
Popis: | In addition to the classic biotic and abiotic factors that have disrupted the health of forests throughout history, lately, the balance of forest ecosystems has been disturbed by different phenomena such as climate change, pollution, and, especially, biological invasions of invasive alien species. One of the alien species that has invaded Europe relatively quickly is an insect species of North American origin, the oak lace bug (Corythucha arcuata Say, 1832 Heteroptera: Tingidae). In the context of the rapid spread of infestations and the severity of attacks on oak trees in infested forests, this paper aims to assess measures to manage this species in the future. Namely, the effect of aerial chemical treatments on oak lace bug has been investigated with two influencing factors: the mode of insecticide action (contact and systemic) and the treatment volume (low volume and ultra-low volume). The experiment was conducted in two forests over a total area of 350 hectares. The results show that the reduction of the nymph population varied from 91% to 96%. However, the residual population was sufficient to allow differentiated re-infestations over time, more quickly after contact insecticide sprays (22 days after treatment) and slowly after systemic insecticide sprays (more than a month after treatment). This re-infestation time difference had implications on attack intensity as well, with stronger leaf discoloration observed in areas treated with a contact insecticide compared with those treated with a systemic insecticide. |
Databáze: | OpenAIRE |
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