Pure Camphor and a Thujone‐Camphor Mixture as Eco‐Friendly Antifeedants against Larvae and Adults of the Colorado Potato Beetle
2022
Аутори:
Lazarević, JelicaKostić, Igor
Šešlija Jovanović, Darka
Ćalić, Dušica
Milanović, Slobodan
Kostić, Miroslav
Тип документа:
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
The Colorado potato beetle (CPB) is a serious pest of economically important Solanaceae
species. The use of essential oil compounds in pest management has been proposed as an alternative
to harmful chemical insecticides that disturb human health and ecosystem functioning. We examined
the antifeedant activity of three concentrations (0.125%, 0.25% and 0.5%) of pure camphor and
a thujone‐camphor mixture against 3rd instar larvae and adults. Their efficacy was evaluated according
to the degree of leaf damage and avoidance of treated leaves by the CPB. Treatment of
potato leaves significantly reduced leaf damage compared to the control. Leaf protection increased
at higher concentrations of the examined compounds. Camphor was more effective against larvae
and the thujone‐camphor mixture was more effective against adults. Additionally, adults moved
faster towards the control leaf disc in the two‐choice olfactometer assay if an alternative disc was
treated with a thujone‐camphor mixture, whereas larvae responded similarly to the two potential
repellents. However, after contact with the leaf disc treated with the highest compound concentration,
the larvae escaped faster from the thujone‐camphor mixture than from pure camphor. In conclusion,
both examined compounds are promising eco‐friendly antifeedants, but their efficacy depends
on the developmental stage of the beetle, compound type and applied concentration.
Кључне речи:
Leptinotarsa decemlineata;; botanicals;; monoterpene ketone;; deterrent;; repellent;; irritantИзвор:
Plants, 2022, 11, 24, 3587-Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200007 (Универзитет у Београду, Институт за биолошка истраживања 'Синиша Станковић') (RS-MESTD-inst-2020-200007)
DOI: 10.3390/plants11243587
ISSN: 2223-7747