Mingotti Dias Pamella, de Souza Loureiro Elisângela, Amorim Pessoa Luis Gustavo, Reis Devoz Gabriel Luiz, Bárbaro Barbosa Junior Gilson, Macali Werner Allan, Navarrete Acacio Aparecido, Teodoro Paulo Eduardo
Graduate Program in Entomology and Biodiversity Conservation, Federal University of Grande Dourados, Dourados 79804-970, Brazil.
Agronomy, Federal University of Mato Grosso do Sul, Chapadão do Sul 79560-000, Brazil.
Insects. 2020 Oct 19;11(10):716. doi: 10.3390/insects11100716.
We aimed to evaluate the selectivity of entomopathogenic fungi to larvae of (Neuroptera: Chrysopidae). For this purpose, (strain ESALQ PL63), (strain ESALQ E9) and (strain UFMS 03) were assessed at different concentrations (1 × 10, 1 × 10 and 1 × 10 conidia mL). The control treatment consisted of distilled water and Tween80 0.01. The treatments were applied with a Potter spray tower using two different methodologies: direct application (DA) and dry film (DF). Up to 96 h after application, no treatment provided a larval mortality above 3%. After 120 h, only induced significant mortality in all instars, with rates of 26%, 17% and 10% for first, second and third instar larval periods, respectively. There was no difference regarding to the application method or concentration of conidia. The percentage of individuals that revealed changes in the length of the larval and pupal periods varied among different treatments with entomopathogenic fungi and control treatments, application methodologies and concentrations. Despite revealing a higher mortality than and on larvae of , these three entomopathogenic fungi may be used in association with for sustainable pest management.
我们旨在评估昆虫病原真菌对(脉翅目:草蛉科)幼虫的选择性。为此,对球孢白僵菌(菌株ESALQ PL63)、布氏白僵菌(菌株ESALQ E9)和绿僵菌(菌株UFMS 03)在不同浓度(1×10⁶、1×10⁷和1×10⁸分生孢子/毫升)下进行了评估。对照处理包括蒸馏水和0.01%的吐温80。使用波特喷雾塔采用两种不同方法进行处理:直接施用(DA)和干膜(DF)。施用后长达96小时,没有任何处理使幼虫死亡率超过3%。120小时后,只有球孢白僵菌(菌株ESALQ PL63)在所有龄期均引起显著死亡,一龄、二龄和三龄幼虫期的死亡率分别为26%、17%和10%。分生孢子的施用方法或浓度没有差异。在不同的昆虫病原真菌处理、对照处理、施用方法和浓度中,显示幼虫和蛹期长度发生变化的个体百分比各不相同。尽管球孢白僵菌(菌株ESALQ PL63)对草蛉幼虫的死亡率高于布氏白僵菌(菌株ESALQ E9)和绿僵菌(菌株UFMS 03),但这三种昆虫病原真菌可与草蛉联合用于可持续害虫管理。