Natural enemies associated with Maconellicoccus hirsutus (Hemiptera: Pseudococcidae) in the state of São Paulo, Brazil
Keywords:
invasive species, geographical distribution, biological control, parasitoid, predatorAbstract
The pink hibiscus mealybug, Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae), occurs widely in Brazil, causing damage to some crops. However, information on beneficial insects acting to control populations of this pest in Brazil is practically non-existent. A survey was conducted in the state of São Paulo. The insect associates of M. hirsutus recorded on Hibiscus rosa-sinensis L. (Malvales: Malvaceae) were the parasitoid Gyranusoidea indica Shafee, Alam & Agarwal (Hymenoptera: Encyrtidae) and the predators Cycloneda sanguinea (L.), Cryptolaemus montrouzieri Mulsant, Chilocorus nigrita (F.), Exoplectra sp., Harmonia axyridis (Pallas), Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae), and Ceraeochrysa sp. (Neuroptera: Chrysopidae). Cryptolaemus montrouzieri was the most commonly collected species on populations of M. hirsutus infesting plants of H. rosa-sinensis. Chilocorus nigrita, Exoplectra sp., H. axyridis, T. notata, and Ceraeochrysa sp. were associated for the first time with M. hirsutus, and G. indica was recorded for the first time in Brazil.
Resumo
A cochonilha rosada do hibisco, Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae), atualmente difundida de Norte a Sul do Brasil, vem causando danos a algumas plantas cultivadas. Entretanto informações sobre insetos atuando sobre o controle das populações dessa praga no país são praticamente inexistentes. Um levantamento foi realizado no Estado de São Paulo, e os inimigos naturais associados à M. hirsutus sobre Hibiscus rosa-sinensis L. (Malvales: Malvaceae) foram o parasitoide Gyranusoidea indica Shafee, Alam & Agarwal (Hymenoptera: Encyrtidae) e os predadores Cycloneda sanguinea (L.), Cryptolaemus montrouzieri Mulsant, Chilocorus nigrita (F.), Exoplectra sp., Harmonia axyridis (Pallas), Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae), e Ceraeochrysa sp. (Neuroptera: Chrysopidae). Cryptolaemus montrouzieri foi a espécie mais comumente coletada sobre populações de M. hirsutus infestando plantas de H. rosa-sinensis. Chilocorus nigrita, Exoplectra sp., H. axyridis, T. notata e Ceraeochrysa sp. foram registradas pela primeira vez associadas com M. hirsutus e G. indica é registrada pela primeira vez no Brasil.
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