scholarly journals Efficacy of Beauveria bassiana and Beauveria pseudobassiana isolates against the pine processionary moth, Thaumetopoea wilkinsoni Tams, 1926 (Lepidoptera/Notodontidae)

2022 ◽  
Vol 32 (1) ◽  
Author(s):  
Elif Fatma Topkara ◽  
Oğuzhan Yanar ◽  
Celal Tuncer ◽  
Ismail Oguz Ozdemir ◽  
Elif Yildirim
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
Chemical Control ◽  
Fourth Instar ◽  
Control Methods ◽  
Skin Reactions ◽  
Pine Processionary Moth ◽  
Processionary Moth ◽  
Fungal Isolates ◽  
Thaumetopoea Wilkinsoni

Abstract Background The pine processionary moth, Thaumetopoea wilkinsoni Tams, 1926 (Lepidoptera/Notodontidae) is one of the most harmful insects that destroys pine ecosystems by feeding on pine leaves at its larval stage. Because of its urticating setae, the insect also causes severe skin reactions to animals and humans. Instead of chemical control, eco-friendly biological control methods are preferred to combat this species. Results The purpose of this study was to evaluate the efficacy of five different Beauveria bassiana Vuill, 1912 (Hypocreales/Cordycipitaceae) isolates (TR-SM-10, TR-SM-11, TR-SM-2, TR-SK-1 and TR-D-1) and one B. pseudobassiana Rehner & Humber (Hypocreales/Cordycipitaceae) isolate (TR-SM-1) against the fourth instar larvae of T. wilkinsoni under laboratory conditions. T. wilkinsoni larvae were collected from the Ondokuz Mayıs University Kurupelit Campus in Samsun, Turkey, in 2021, and the fourth instar larvae were used in the experiment. Two ml of spray of the six fungal isolates were applied to every ten larvae at each concentration (1 × 107 and 1 × 108 conidia ml−1). The experiment was carried out in five replicates per group, and the larvae were observed for 10 days. As a result, all isolates of B. bassiana caused 100% mortality at 1 × 108 conidia ml−1 concentration. B. pseudobassiana isolate also caused 100% mortality at both concentrations. At 1 × 107 conidia ml−1 concentration, the larvae treated with the B. pseudobassiana isolate (TR-SM-1) had the lowest LT50 (2.89 days) and LT90 values (4.79 days), while the larvae treated with TR-SM-10 isolate had the highest LT50 (5.65 days) and LT90 values (9.39 days). At 1 × 108 conidia ml−1 concentration, the larvae treated with TR-SK-1 isolate had the lowest LT50 (2.89 days) and LT90 values (4.79 days), while those treated with TR-SM-10 isolate had the highest LT50 (3.95 days) and LT90 values (8.15 days). Conclusion It has been recommended that the five different isolates of B. bassiana and B. pseudobassiana isolates were virulent to T. wilkinsoni larvae and can be used for biological control of T. wilkinsoni.

Integrated Pest Management for Crops and Pastures

2008 ◽  
Author(s):  
Paul Horne ◽  
Jessica Page
Keyword(s):  
Biological Control ◽  
Genetic Engineering ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Introduced Species ◽  
Chemical Control ◽  
Effective Control ◽  
Control Methods ◽  
Biological Control Agents ◽  
Cultural Changes

Integrated Pest Management for Crops and Pastures describes in straightforward language what is required for farmers to successfully implement Integrated Pest Management (IPM) in cropping and grazing operations. It explains the differences between conventional pesticide-based controls and IPM, and demonstrates the advantages of IPM. Effective control of pests depends on a number of approaches, not just chemical or genetic engineering. The opening chapters cover the different approaches to pest management, and the importance of identification and monitoring of pests and beneficials. Most farmers and advisors can identify major pests but would struggle to recognise a range of beneficial species. Without this information it is impossible to make appropriate decisions on which control methods to use, especially where pests are resistant to insecticides. The book goes on to deal with the control methods: biological, cultural and chemical. The biological control agents discussed include both native and introduced species that attack pests. Cultural changes that have led to an increase in the incidence or severity of pest attack are also examined. The chapter on chemical control describes the different ways chemicals can affect beneficial species, also detailing acute, sub-lethal and transient toxicities of pesticides, drawing on examples from horticulture where necessary. Finally, the authors bring all the components of integrated pest management together and show farmers how to put their IPM plan into action.

Skin reactions induced by experimental exposure to setae from larvae of the northern pine processionary moth (Thaumetopoea pinivora)

2008 ◽  
Vol 59 (5) ◽  
pp. 290-295 ◽  
Author(s):  
Bengt Fagrell ◽  
Gun Jörneskog ◽  
Ann-Christin Salomonsson ◽  
Stig Larsson ◽  
Go¨ran Holm
Keyword(s):  
Experimental Exposure ◽  
Skin Reactions ◽  
Pine Processionary Moth ◽  
Processionary Moth

scholarly journals Entomopathogenic fungi of soils of freshwater swamps, tidal lowlands, peatlands, and highlands of South Sumatra, Indonesia

2018 ◽  
Vol 19 (6) ◽  
pp. 2365-2373 ◽  
Author(s):  
AYU SAFITRI ◽  
SITI HERLINDA ◽  
ARUM SETIAWAN
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
Entomopathogenic Fungi ◽  
Metarhizium Anisopliae ◽  
Insect Pests ◽  
Vegetation Type ◽  
Tenebrio Molitor ◽  
Soil Samples ◽  
Fungal Isolates

Safitri A, Herlinda S, Setiawan A. 2018. Entomopathogenic fungi of soils of freshwater swamps, tidal lowlands, peatlands, and highlands of South Sumatra, Indonesia. Biodiversitas 19: 2365-2373. Ecosystems of lowlands and highlands in South Sumatra have specific characteristics of soils and vegetations that can affect the availability of entomopathogenic fungi. This study aimed to explore and identify species and to determine inoculum potentials of the entomopathogenic fungi from soils of freshwater swamps, tidal lowlands, peatlands, and highlands. Baiting of entomopathogenic fungi on soil samples used the larvae of Tenebrio molitor. The entomopathogenic fungi species found in this research were Beauveria bassiana and Metarhizium anisopliae. The number of the fungal isolates were 30 isolates consisting of nine isolates of B. bassiana and 21 isolates of M. anisopliae.The highest number of isolates was found in the highland ecosystem (11 isolates) and the lowest was found in peatland ecosystem (4 isolates). The highest percentage average of inoculum potentials of the fungi was found in the high land ecosystem (4.04%) and the lowest one was found in freshwater swamps ecosystem (2.11%). Based on the vegetation type, the soil planted with mustard in Talang Patai-Pagaralam (highland ecosystem) had the highest inoculum potentials (9.33%). These fungi will make an important contribution to the biological control for insect pests in lowland to highland ecosystems in Indonesia.

MICROBIAL CONTROL AND INTEGRATED PEST MANAGEMENT

1986 ◽  
Vol 21 (3) ◽  
pp. 206-213 ◽  
Author(s):  
Lawrence A. Lacey ◽  
James D. Harper
Keyword(s):  
Public Health ◽  
Biological Control ◽  
Chemical Control ◽  
Microbial Control ◽  
Health Programs ◽  
Control Methods ◽  
Agricultural Systems ◽  
Public Health Programs ◽  
Insect Pathogens ◽  
Chemical Pesticides

Although chemical pesticides are still the principle component of pest control efforts, microbial control agents are increasingly becoming useful in IPM programs. This paper reviews the mechanisms through which pathogens could be used in such programs. In general the strategies of introduction (inoculative or inundative), augmentation, and conservation, recognized for achieving biological control of pests with parasites and predators, are applicable to insect pathogens. Examples of these strategies for microbial control agents and their integration with cultural and chemical control methods in agricultural systems and public health programs are presented.

scholarly journals Selection of Beauveria bassiana and Metarhizium anisopliae isolates for the control of Blissus antillus (Hemiptera: Lygaeidae)

2004 ◽  
Vol 61 (3) ◽  
pp. 271-275 ◽  
Author(s):  
Richard Ian Samuels ◽  
Déborah Lucienne Araújo Coracini
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
Metarhizium Anisopliae ◽  
Control Program ◽  
Virulent Isolate ◽  
Pathogenicity Factor ◽  
Fungal Isolates ◽  
Selection Of

Chinch bugs of the genus Blissus (Hemiptera: Lygaeidae) are serious pests of maize, wheat, sorghum and various grasses. This study is the first to screen isolates of Beauveria bassiana and Metarhizium anisopliae against 4th instar and adult Blissus antillus aiming to develop a biological control program for this important pasture pest. Ten fungal isolates were initially screened and three isolates were chosen for further investigation. To determine virulence, insects were inoculated by immersion in concentrations of 5 ´ 10(8) conidia mL-1. Mortality was evaluated for 10 days. B. bassiana ARSEF 792 was the most virulent isolate to both nymphs and adults, causing 53 and 78% infection, respectively, and values for LT50 of 7.8 and 5.0 days, respectively. Germination studies were carried out to confirm viability and determine speed of germination as a pathogenicity factor. The production of conidia on the cadavers of insects infected with the three selected isolates was determined. The production of conidia on rice media was also evaluated. B. bassiana CG 24 produced the highest number of conidia on insects cadavers (14.9 ´ 10(7) conidia per insect) and also on rice media (10.6 ´ 10(9) conidia per g).

A review of the biology and control of the coffee berry borer, Hypothenemus hampei (Coleoptera: Scolytidae)

2000 ◽  
Vol 90 (6) ◽  
pp. 453-465 ◽  
Author(s):  
A. Damon
Keyword(s):  
Biological Control ◽  
Environmental Factors ◽  
Chemical Control ◽  
Organochlorine Insecticide ◽  
Control Methods ◽  
Hypothenemus Hampei ◽  
Coffee Berry ◽  
Coffee Berry Borer ◽  
Weak Points ◽  
And Control

AbstractThe coffee berry borer, Hypothenemus hampei Ferrari, is a serious problem for the majority of the world‘s coffee growers and has proved to be one of the most intractable of present day pests. Despite a great deal of research, control still depends largely on the application of the organochlorine insecticide endosulfan, which is damaging to the environment, or a series of cultural and biological control methods which give variable and unpredictable results. This review summarizes the most important aspects of the biology and ecology of H. hampei and its control and identifies weak points in the knowledge about this pest. Emphasis is placed upon an analysis of the non-chemical control methods available and suggestions are offered for novel ecological and environmental factors worthy of further research, in the search for viable and sustainable control methods.

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