Occurrence of the Entomogenous Fungus Beauveria bassiana in Pecan Orchard Soils in Georgia

1991 ◽  
Vol 26 (3) ◽  
pp. 360-366 ◽  
Author(s):  
Ronald D. Harrison ◽  
Wayne A. Gardner
Keyword(s):  
Pest Management ◽  
Beauveria Bassiana ◽  
Environmental Conditions ◽  
Soil Type ◽  
Management Practices ◽  
Soil Samples ◽  
Entomogenous Fungus ◽  
Fungal Propagules ◽  
Fungus Beauveria Bassiana ◽  
Orchard Soils

Soils from 19 pecan orchards in ten Georgia counties were sampled for Beauveria bassiana (Balsamo) Vuillemin propagules utilizing a selective oatmeal-dodine agar. The 543 soil samples were collected at times corresponding to adult pecan weevil, Curculio caryae (Horn), emergence from the soil and larval penetration into the soil. Fungal propagules were detected in the soils of each of the 19 orchards on both sampling dates. Therefore, soils in pecan orchards in Georgia appear to contain B. bassiana propagules during periods of adult and larval activity of pecan weevils regardless of location, soil type, or pest management practices. Environmental conditions in these orchard soils are apparently conducive for B. bassiana stability and persistence and may enhance efforts to augment the natural inoculum.

Experimental parasitization of larvae of the gypsy moth, Porthetria dispar (L.), with the entomogenous fungus, Beauveria bassiana (Balsamo) Vuill

Parasitology ◽  
1975 ◽  
Vol 70 (3) ◽  
pp. 341-346 ◽  
Author(s):  
S. S. Wasti ◽  
G. C. Hartmann
Keyword(s):  
Beauveria Bassiana ◽  
Gypsy Moth ◽  
Post Inoculation ◽  
Entomogenous Fungus ◽  
Porthetria Dispar ◽  
Host Penetration ◽  
Fungus Beauveria Bassiana ◽  
Wax Moth

Second-instar larvae of the gypsy moth, Porthetria dispar (L.) were infected with Beauveria bassiana (Balsamo) Vuill. by allowing larvae to crawl over sporulating cultures of the fungus. Virulence of the pathogen was increased by inoculating larvae of the wax moth, Galleria melonella (L.), twice in serial succession. Observations were made on the infectivity and histopathology of the parasite in the host. Penetration of the cuticle occurred 24 h after inoculation and at 64 h post-inoculation the interior was completely filled with hyphae. Penetration of the gut wall was also observed.

Complete genome sequence of a novel partitivirus from the entomogenous fungus Beauveria bassiana in China

2019 ◽  
Vol 164 (12) ◽  
pp. 3141-3144 ◽  
Author(s):  
Najie Shi ◽  
Guogen Yang ◽  
Ping Wang ◽  
Yulong Wang ◽  
Deshui Yu ◽  
...  
Keyword(s):  
Beauveria Bassiana ◽  
Genome Sequence ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Entomogenous Fungus ◽  
Fungus Beauveria Bassiana

scholarly journals Investigating the potential of Beauveria bassiana as a biocontrol agent for Fullers rose weevil (Naupactus cervinus)

2013 ◽  
Vol 66 ◽  
pp. 379-379
Author(s):  
P.W. Shaw ◽  
D.R. Wallis ◽  
T.L. Nelson ◽  
T.A. Jackson
Keyword(s):  
Emerging Adults ◽  
Beauveria Bassiana ◽  
Entomopathogenic Fungus ◽  
Field Trial ◽  
Biocontrol Agent ◽  
Soil Samples ◽  
Preliminary Results ◽  
Broadcast Application ◽  
Fungus Beauveria Bassiana

Fullers rose weevil (FRW Naupactus cervinus) is a troublesome pest in pipfruit orchards since adult weevils often lay their eggs in irrigation sprinkler heads causing blockages throughout the season Adult weevils feed mainly on apple foliage and can damage and lay eggs on fruit The entomopathogenic fungus Beauveria bassiana was assessed as a biocontrol agent against Fullers rose weevil in a field trial at a Nelson pipfruit orchard with a large FRW population Larvae of the pest live in the soil and are susceptible to strains of the fungus The trial consisted of five randomised treated and untreated threetree apple plots (10 m2) A granular formulation of the fungus was applied by hand (50 g/m2) in May 2012 and irrigated into the soil Soil samples were collected in September 2012 and analysis showed the fungus had established in treated plots In treated plots average numbers of larvae were reduced by 70 and in four of the five plots emerging adults were reduced by an average of 80 These preliminary results indicate the potential for a granular formulation of Beauveria bassiana to be used as a broadcast application against FRW in orchards

scholarly journals Mixtures between Beauveria bassiana and potassium silicate to manage thrips in tomato plants for industrial processing

2020 ◽  
Vol 38 (4) ◽  
pp. 415-420
Author(s):  
Alexandre Igor A Pereira ◽  
Cide M da Silva ◽  
Carmen RS Curvêlo ◽  
Nadson de C Pontes ◽  
Jardel L Pereira ◽  
...  
Keyword(s):  
Pest Management ◽  
Beauveria Bassiana ◽  
Management Practices ◽  
Integrate Pest Management ◽  
Potassium Silicate ◽  
Chemical Insecticide ◽  
Tomato Plants ◽  
Industrial Processing ◽  
Wilt Virus ◽  
Solanaceae Family

ABSTRACT Thysanoptera species can transmit virus to Solanaceae family vegetables, including tomato plants for industrial processing, causing the disease known as Tomato Spotted Wilt Virus (TSWV). Thrips resistance to insecticides indicate the urgent need of techniques adequate for Integrate Pest Management practices. The objective was to evaluate the control efficiency (CE%) against Frankliniella schultzei (Thysanoptera: Thripidae) of the fungus Beauveria bassiana (Bb), the resistance inducer potassium silicate (KSil) and the chemical insecticide profenophos + cypermethrin (PC) isolated, or in binary mixtures. The treatments were foliar spraying on tomato plants with Bb (T1), KSil (T2) and PC (T3) isolated or in mixtures of Bb+KSil (T4), PC+KSil (T5) and Bb+PC (T6). Thrips were sampled with white plastic trays at 0, 1, 7, 14 and 21 days after application (daa). The CE% of each product (isolated or in mixtures) differed at all time intervals. The Bb+KSil treatment had highest CE% from 24 hours of application, until the end of the experiment, ranging from 95% (1 daa) to 41.5% (21 daa). The CE% decreased in all treatments with a quadratic curve behavior, throughout time. PC insecticide, isolated, showed a decreased CE% through a linear regression. Grouping analyzes indicated the Bb+KSil effect was more dissimilar than the other evaluated treatments. Synergism between Bb and KSil, in mixture, indicate its potential for Integrated Pest Management programs of F. schultzei in tomato plants for industrial processing.

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