scholarly journals Biological Control in Capsicum with Microbial Agents

Capsicum ◽  
2020 ◽  
Author(s):  
Lorena Barra-Bucarei ◽  
Javiera Ortiz
Keyword(s):  
Biological Control ◽  
Microbial Agents

scholarly journals Omics sciences potential on bioprospecting of biological control microbial agents: the case of the Mexican agro-biotechnology

2020 ◽  
Vol 39 (1) ◽  
Author(s):  
Liliana Carolina Córdova-Albores ◽  
Lily Xochilt Zelaya-Molina ◽  
Norma Ávila-Alistac ◽  
Valeria Valenzuela-Ruíz ◽  
Nelly Ethel Cortés-Martínez ◽  
...  
Keyword(s):  
Biological Control ◽  
Microbial Agents

<p>Actualmente, los estudios sobre agentes de control biológico de origen microbiano (ACB-M) generalmente están enfocados en la caracterización taxonómica mediante el uso de marcadores moleculares convencionales y en evaluar la capacidad antagónica/mecanismos de acción <em>in vitro</em>, en invernadero y eventualmente bajo condiciones de campo. Los ACB-M se centran principalmente en cepas de <em>Trichoderma</em>, <em>Paecilomyces, Beauveria</em>, <em>Pseudomonas</em> y <em>Bacillus</em>. Aunque la investigación en México en este campo ha sido muy activa en los últimos años, el desarrollo e innovación de una mayor diversidad de bioplaguicidas registrados y comercializados puede ser potenciada. En este contexto, el uso de técnicas vanguardistas en la era de las ciencias ómicas (genómica, transcriptómica, y metabolómica) enfocadas a la correcta afiliación taxonómica de los ACB-M y en el estudio de mecanismos de acción y comportamiento agroecológico es determinante para la bioprospección y uso extensivo de estos ACB-M de manera eficaz, biosegura y costo-efectiva. En el marco de la celebración internacional de la sanidad vegetal, la presente revisión analiza críticamente el estado del conocimiento y de aquellos aspectos que limitan la bioprospección y el uso extensivo de ACB-M con énfasis en México, desde la aplicación de las ciencias ómicas para la identificación, selección y estudio de los mecanismos de acción de dichos agentes hasta la difusión y socialización del conocimiento científico generado. Se pretende promover la reflexión sobre este campo del conocimiento e incentivar la nueva generación ACB-M con una visión holística y sistémica en beneficio de una agricultura sustentable y resiliente.</p>

Differential Susceptibility of Bagrada hilaris (Hemiptera: Pentatomidae) to Different Species of Fungal Pathogens

2019 ◽  
Author(s):  
Anahi A Barrera-López ◽  
Ariel W Guzmán-Franco ◽  
Materesa Santillán-Galicia ◽  
Fernando Tamayo-Mejía ◽  
Rafael Bujanos-Muñiz ◽  
...  
Keyword(s):  
Biological Control ◽  
Fungal Pathogens ◽  
Microbial Control ◽  
Differential Susceptibility ◽  
Field Studies ◽  
The United States ◽  
Fungal Species ◽  
Biological Control Agents ◽  
Percent Mortality ◽  
Microbial Agents

Abstract Bagrada hilaris Burmeister (Hemiptera: Pentatomidae) is a pest of Palearctic origin. Its presence in the United States was first reported in 2008 and in Mexico in 2014; it affects brassica crops. There are practically no reports of natural enemies of B. hilaris in America. Entomopathogenic fungi are strong candidates for microbial control of this pest. Evaluating the susceptibility of this pest to fungi that are native to the region where they will be used is a sensible first step to finding candidate biological control agents. The aim of our research was to select potential microbial agents to control B. hilaris. Eleven isolates of Beauveria bassiana, Beauveria pseudobassiana, Metarhizium anisopliae, and Isaria fumosorosea were evaluated to determine the susceptibility of B. hilaris. Isolates of B. bassiana caused the highest mortality due to infection (100%) compared with the other isolates. The I. fumosorosea isolate caused the lowest percent mortality (56%). The two B. bassiana isolates Bb88 and AP3 were more virulent than M. anisopliae isolate Ma129. The sex of the insect had no effect on infection levels achieved by B. bassiana isolates Bb88 and AP3. The results of our study contribute valuable information for the development of fungal species with potential to manage B. hilaris populations. Field studies are the next step in order to develop these isolates as biological control agents of B. hilaris.

scholarly journals Biological Control of Citrus Postharvest Phytopathogens

Toxins ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 460 ◽  
Author(s):  
Jaqueline Moraes Bazioli ◽  
João Raul Belinato ◽  
Jonas Henrique Costa ◽  
Daniel Yuri Akiyama ◽  
João Guilherme de Moraes Pontes ◽  
...  
Keyword(s):  
Biological Control ◽  
Control Strategies ◽  
Economic Losses ◽  
Postharvest Diseases ◽  
Green Mold ◽  
Low Toxicity ◽  
Shelf Stable ◽  
Microbial Agents ◽  
Harmful Effects ◽  
Post Harvest Disease

Citrus are vulnerable to the postharvest decay caused by Penicillium digitatum, Penicillium italicum, and Geotrichum citri-aurantii, which are responsible for the green mold, blue mold, and sour rot post-harvest disease, respectively. The widespread economic losses in citriculture caused by these phytopathogens are minimized with the use of synthetic fungicides such as imazalil, thiabendazole, pyrimethanil, and fludioxonil, which are mainly employed as control agents and may have harmful effects on human health and environment. To date, numerous non-chemical postharvest treatments have been investigated for the control of these pathogens. Several studies demonstrated that biological control using microbial antagonists and natural products can be effective in controlling postharvest diseases in citrus, as well as the most used commercial fungicides. Therefore, microbial agents represent a considerably safer and low toxicity alternative to synthetic fungicides. In the present review, these biological control strategies as alternative to the chemical fungicides are summarized here and new challenges regarding the development of shelf-stable formulated biocontrol products are also discussed.

scholarly journals Biopolymers for Biological Control of Plant Pathogens: Advances in Microencapsulation of Beneficial Microorganisms

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1938
Author(s):  
Roohallah Saberi-Riseh ◽  
Mojde Moradi-Pour ◽  
Reza Mohammadinejad ◽  
Vijay Kumar Thakur
Keyword(s):  
Biological Control ◽  
Controlled Release ◽  
Shelf Life ◽  
Plant Pathogens ◽  
Mineral Fertilizer ◽  
Polymeric Materials ◽  
Soil Characteristics ◽  
Biocontrol Agents ◽  
Biological Control Agents ◽  
Microbial Agents

The use of biofertilizers, including biocontrol agents such as Pseudomonas and Bacillus in agriculture can increase soil characteristics and plant acquisition of nutrients and enhancement the efficiency of manure and mineral fertilizer. Despite the problems that liquid and solid formulations have in maintaining the viability of microbial agents, encapsulation can improve their application with extended shelf-life, and controlled release from formulations. Research into novel formulation methods especially encapsulation techniques has increased in recent years due to the mounting demand for microbial biological control. The application of polymeric materials in agriculture has developed recently as a replacement for traditional materials and considered an improvement in technological processes in the growing of crops. This study aims to overview of types of biopolymers and methods used for encapsulation of living biological control agents, especially microbial organisms.

Electron investigations of rhabdovirus-like particles in mexican bean beetles and crickets

1978 ◽  
Vol 36 (2) ◽  
pp. 378-379
Author(s):  
J. R. Adams ◽  
G. J Tompkins ◽  
A. M. Heimpel ◽  
E. Dougherty
Keyword(s):  
Biological Control ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Developmental Stages ◽  
Management Program ◽  
Acheta Domesticus ◽  
Epilachna Varivestis ◽  
House Cricket ◽  
Similar Morphology ◽  
Bean Beetle

As part of a continual search for potential pathogens of insects for use in biological control or on an integrated pest management program, two bacilliform virus-like particles (VLP) of similar morphology have been found in the Mexican bean beetle Epilachna varivestis Mulsant and the house cricket, Acheta domesticus (L. ).Tissues of diseased larvae and adults of E. varivestis and all developmental stages of A. domesticus were fixed according to procedures previously described. While the bean beetles displayed no external symptoms, the diseased crickets displayed a twitching and shaking of the metathoracic legs and a lowered rate of activity.Examinations of larvae and adult Mexican bean beetles collected in the field in 1976 and 1977 in Maryland and field collected specimens brought into the lab in the fall and reared through several generations revealed that specimens from each collection contained vesicles in the cytoplasm of the midgut filled with hundreds of these VLP's which were enveloped and measured approximately 16-25 nm x 55-110 nm, the shorter VLP's generally having the greater width (Fig. 1).

Cost-Benefit Reasoning About Biological Control

2007 ◽  
Author(s):  
Andrew E. Monroe ◽  
Corinne Zimmerman
Keyword(s):  
Biological Control ◽  
Cost Benefit
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