Your browser doesn't support javascript.
loading
Virulence of entomopathogenic nematodes and their symbiotic bacteria, under laboratory conditions, aiming controlling Saccharicoccus sacchari (Cockerell, 1895) (Hemiptera: Pseudococcidae) on sugarcane.
Monteiro, G G; Paulo, H H; Nascimento, D D; Pelegrini, G; Lacerda, L M; Chacon-Orozco, J; Leite, L G; Polanczyk, R A.
Afiliación
  • Monteiro GG; Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Câmpus de Jaboticabal, Jaboticabal, SP, Brasil.
  • Paulo HH; Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Câmpus de Jaboticabal, Jaboticabal, SP, Brasil.
  • Nascimento DD; Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Câmpus de Jaboticabal, Jaboticabal, SP, Brasil.
  • Pelegrini G; Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Câmpus de Jaboticabal, Jaboticabal, SP, Brasil.
  • Lacerda LM; Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Câmpus de Jaboticabal, Jaboticabal, SP, Brasil.
  • Chacon-Orozco J; Instituto Biológico, Campinas, SP, Brasil.
  • Leite LG; Instituto Biológico, Campinas, SP, Brasil.
  • Polanczyk RA; Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Câmpus de Jaboticabal, Jaboticabal, SP, Brasil.
Braz J Biol ; 84: e253780, 2022.
Article en En | MEDLINE | ID: mdl-35137847
Sugarcane crops Saccharum spp. (Poales: Poaceae) produces different derivatives to the world: sugar, ethanol and bioenergy. Despite the application of pesticides, insect pests still cause economic losses, among these the pink sugarcane mealybug Saccharicoccus sacchari (Cockerell, 1895) (Hemiptera: Pseudococcidae) causing direct and indirect damage to the plant. This study assess the virulence of three entomopathogenic nematodes (EPNs) species and their symbiont bacteria against the pink sugarcane mealybug, under laboratory conditions. Fourteen treatments represented by control (distilled water), Heterorhabditis bacteriophora Poinar, 1976 (HB EN01) (Rhabditida: Heterorhabditidae), Steinernema rarum (Doucet, 1986) (PAM25) and Steinernema carpocapsae Weiser, 1955 (All) (Rhabditida: Steinermatidae) at concentrations of 25, 50, 75 and 100 infective juveniles (IJs)/insect, and the standard chemical product, thiamethoxam, were assayed. In a second experiment, the bacteria Photorhabdus luminescens (Thomas and Poinar, 1979), Xenorhabdus szentirmaii Lengyel, 2005 and Xenorhabdus nematophila (Poinar and Thomas, 1965) (Enterobacterales: Morganellaceae) at 3.0 x 109 cells/ml were assessed for each treatment. Ten replications were stablished, each one counting ten females/mealybugs inside a 10 cm Petri dish, amounting 100 individuals/treatment. All treatments were kept under stable conditions (25±1 ºC, H 70±10%, in the dark). All nematodes species infected S. sacchari. Steinerma rarum (PAM25) provided the highest mortality against the pink sugarcane mealybug (79.25%), followed by H. bacteriophora (HB EN01) (58.25%) and S. carpocapsae (All) (42.50%) (P<0.001). The mortality rate caused by X. szentirmaii, P. luminescens and X. nematophila were 40, 45 and 20%, respectively. Steinerma rarum (PAM25) has conditions to be a potential agent to be incorporate into the integrated pest management in sugarcane.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rabdítidos / Saccharum / Hemípteros Límite: Animals / Female / Humans Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rabdítidos / Saccharum / Hemípteros Límite: Animals / Female / Humans Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil