Falsa broca aumenta disseminação de Beauveria bassiana em populações de campo da broca-do-rizoma da bananeira

Pauli, Giuliano; Lopes, Rogério Biaggioni; Alves, Sérgio Batista; Damatto, Erval Rafael; Mascarin, Gabriel Moura

doi:10.1590/s0103-84782011001100002

Cited by 7 publications

(6 citation statements)

References 5 publications

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“…For M. hemipterus , the values observed were from 1.4 to 2.1 insects/trap. M. hemipterus is not considered a main banana pest [15], but some records show that it enhances B. bassiana in banana crops [7, 16]. However, in the present case, this might have not occurred as the number of insects collected was low (averages of 0.4 and 2.0 insects/trap in Mutuípe and Wenceslau Guimarães, resp.).…”

Section: Resultsmentioning

confidence: 63%

Beauveria bassianaStrains for Biological Control ofCosmopolites sordidus(Germ.) (Coleoptera: Curculionidae) in Plantain

Fancelli

Dias²,

Delalibera³

et al. 2013

BioMed Research International

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The objective of this study was to select strains of Beauveria bassiana for controlling Cosmopolites sordidus (Germ.) in plantain farms (cv. Terra) of the “Recôncavo” and southern regions in the state of Bahia, Brazil. The virulence of 32 B. bassiana isolates against C. sordidus was determined under laboratory conditions. Three isolates (CNPMF 407, CNPMF 218, and CNPMF 416) were selected for evaluation under field conditions in plantations located in the counties of Mutuípe and Wenceslau Guimarães. Population of C. sordidus was estimated every 15 days by using pseudostem traps. The efficiency of the three strains of B. bassiana was compared to chemical control (carbofuran, 4g/trap) and absence of control. Carbofuran caused around 90% of adult mortality after 12 months, with a reduction in the population of C. sordidus since the first evaluation. A low number of trapped insects was observed in the fungus-treated plots, suggesting the efficiency of the isolates in controlling the C. sordidus population. The strain CNPMF 218 was the most efficient in controlling C. sordidus adults in both locations, causing around 20% mortality, leading to 40% population size reduction after 12 months.

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Section: Resultsmentioning

confidence: 63%

Beauveria bassianaStrains for Biological Control ofCosmopolites sordidus(Germ.) (Coleoptera: Curculionidae) in Plantain

Fancelli

Dias²,

Delalibera³

et al. 2013

BioMed Research International

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“…The management of banana weevil was performed using B. bassiana , an entomopathogenic fungus widely used to control banana weevils and false weevils [ 30 , 31 , 32 , 33 , 34 ]. The entomopathogen enters the insect through the spiracles, digestive system, or insect cuticle and grows in hemocoel and muscle tissues, destroying tracheal taenidia and fat bodies [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

Weevil Borers Affect the Spatio-Temporal Dynamics of Banana Fusarium Wilt

Heck

Alves

Mizubuti

2021

JoF

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Dispersal of propagules of a pathogen has remarkable effects on the development of epidemics. Previous studies suggested that insect pests play a role in the development of Fusarium wilt (FW) epidemics in banana fields. We provided complementary evidence for the involvement of two insect pests of banana, the weevil borer (Cosmopolites sordidus L., WB) and the false weevil borer (Metamasius hemipterus L., FWB), in the dispersal of Fusarium oxysporum f. sp. cubense (Foc) using a comparative epidemiology approach under field conditions. Two banana plots located in a field with historical records of FW epidemics were used; one was managed with Beauveria bassiana to reduce the population of weevils, and the other was left without B. bassiana applications. The number of WB and FWB was monitored biweekly and the FW incidence was quantified bimonthly during two years. The population of WB and the incidence (6.7%) of FW in the plot managed with B. bassiana were lower than in the plot left unmanaged (13%). The monomolecular model best fitted the FW disease progress data, and as expected, the average estimated disease progress rate was lower in the plot managed with the entomopathogenic fungus (r = 0.002) compared to the unmanaged plot (r = 0.006). Aggregation of FW was higher in the field with WB management. WB affected the spatial and temporal dynamics of FW epidemics under field conditions. Management of the insects may reduce yield loss due to FW.

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“…The management of banana weevil was performed using B. bassiana, an entomopathogenic fungus widely used to control banana weevils and false weevils (Kaaya et al 1993;Akello et al 2008;Pauli et al 2011;Mesquita et al 1981). The entomopathogen enters the insect through the spiracles, digestive system, or insect cuticle and grows in hemocoel and muscle tissues, destroying tracheal taenidia and fat bodies (Kaaya et al 1993).…”

Section: Discussionmentioning

confidence: 99%

Weevil borers affect the spatio-temporal dynamics of banana Fusarium wilt

Heck

Alves

Mizubuti

2021

Preprint

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Dispersal of propagules of a pathogen has remarkable effects on the development of epidemics. Previous studies suggested that insect pests play a role in the development of Fusarium wilt (FW) epidemics in banana fields. We provided complementary evidence for the involvement of two insect pests of banana, the weevil borer (Cosmopolites sordidus L. - WB) and the false weevil borer (Metamasius hemipterus L. - FWB), in the dispersal of Fusarium oxysporum f. sp. cubense (Foc) using a comparative epidemiology approach under field conditions. Two banana plots located in a field with historical records of FW epidemics were used, one was managed with Beauveria bassiana to reduce the population of weevils, and the other was left without B. bassiana applications. The number of WB and FWB was monitored biweekly and the FW incidence was quantified bimonthly during two years. The population of WB and the incidence (6.7%) of FW in the plot managed with B. bassiana were lower than in the plot left unmanaged (13%). The monomolecular model best fitted the FW disease progress data and, as expected, the average estimated disease progress rate was lower in the plot managed with the entomopathogenic fungus (r = 0.0024) compared to the unmanaged plot (r = 0.0056). Aggregation of FW was higher in the field with WB management. WB affected the spatial and temporal dynamics of FW epidemics under field conditions and brought evidence that managing the insects may reduce FW of bananas intensity.

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Falsa broca aumenta disseminação de Beauveria bassiana em populações de campo da broca-do-rizoma da bananeira

Abstract: Horizontal transmission of entomopathogenic fungi plays an important role in the epizootiology

Cited by 7 publications

References 5 publications

Beauveria bassianaStrains for Biological Control ofCosmopolites sordidus(Germ.) (Coleoptera: Curculionidae) in Plantain

Beauveria bassianaStrains for Biological Control ofCosmopolites sordidus(Germ.) (Coleoptera: Curculionidae) in Plantain

Weevil Borers Affect the Spatio-Temporal Dynamics of Banana Fusarium Wilt

Weevil borers affect the spatio-temporal dynamics of banana Fusarium wilt

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