scholarly journals Talaromyces–Insect Relationships

2021 ◽  
Vol 10 (1) ◽  
pp. 45
Author(s):  
Rosario Nicoletti ◽  
Andrea Becchimanzi
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Crop Production ◽  
Ecological Impact ◽  
Crop Protection ◽  
Pathogenic Fungi ◽  
Plant Pathogenic Fungi ◽  
Ecological Relationships ◽  
New Findings ◽  
Increasing Trend

Facing the urgent need to reduce the input of agrochemicals, in recent years, the ecological relationships between plants and their associated microorganisms have been increasingly considered as an essential tool for improving crop production. New findings and data have been accumulated showing that the application of fungi can go beyond the specific role that has been traditionally assigned to the species, employed in integrated pest management as entomopathogens or mycoparasites, and that strains combining both aptitudes can be identified and possibly used as multipurpose biocontrol agents. Mainly considered for their antagonistic relationships with plant pathogenic fungi, species in the genus Talaromyces have been more and more widely reported as insect associates in investigations carried out in various agricultural and non-agricultural contexts. Out of a total of over 170 species currently accepted in this genus, so far, 27 have been found to have an association with insects from 9 orders, with an evident increasing trend. The nature of their mutualistic and antagonistic relationships with insects, and their ability to synthesize bioactive compounds possibly involved in the expression of the latter kind of interactions, are analyzed in this paper with reference to the ecological impact and applicative perspectives in crop protection.

Comparison of Spray Configurations in a Spray Cabin Design for Ornamental Potted Plants: A Proof-of-Concept Study

2017 ◽  
Vol 60 (3) ◽  
pp. 647-656 ◽  
Author(s):  
Ingrid Zwertvaegher ◽  
Dieter Foqué ◽  
Donald Dekeyser ◽  
Stephanie Van Weyenberg ◽  
David Nuyttens
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Plant Protection ◽  
Spray Deposition ◽  
Crop Protection ◽  
Plant Protection Products ◽  
Proof Of Concept ◽  
Spray Application ◽  
Concept Study ◽  
Potted Plants

Abstract. With the implementation of integrated pest management in the European Union, growers are obliged to manage pests in a manner that minimizes health and environmental risks due to the use of plant protection products. Among other approaches, this goal can be achieved by optimizing spray application techniques. As an alternative to the predominantly used handheld equipment, such as spray guns, spray boom systems might substantially improve spray application, and thus crop protection management, in greenhouses. The aim of this proof-of-concept study was to compare different spray configurations in a spray cabin designed to spray ornamental potted plants that are moving on a conveyor belt. Seven different spray configurations were examined for optimal spray deposition in two crops (azalea and ivy) using mineral chelate tracers. The deposition tests showed that the presented prototype can satisfactorily spray potted plants up to a height of 25 cm including the pot height. The best spray deposition was found with two flat-fan nozzles oriented 35° upward, spraying at 1.0 bar and an application rate of 1047 L ha-1. This configuration increased deposition on the underside of the leaves and at the middle foliage layer compared to the other configurations that were evaluated. The spray cabin with a band spray setting has potential to mitigate the use of plant protection products and achieve a more efficient spray application compared to traditional handheld techniques and broadcast spray boom techniques. Keywords: Crop protection, Integrated pest management, Nozzle type, Spray deposition.

scholarly journals Proteomics of Plant Pathogenic Fungi

2010 ◽  
Vol 2010 ◽  
pp. 1-36 ◽  
Author(s):  
Raquel González-Fernández ◽  
Elena Prats ◽  
Jesús V. Jorrín-Novo
Keyword(s):  
Virulence Factors ◽  
Cell Biology ◽  
Crop Protection ◽  
Pathogenic Fungi ◽  
Disease Diagnosis ◽  
Plant Pathogenic Fungi ◽  
Proteomics Analysis ◽  
Protection Strategies ◽  
Crop Disease ◽  
Opening Up

Plant pathogenic fungi cause important yield losses in crops. In order to develop efficient and environmental friendly crop protection strategies, molecular studies of the fungal biological cycle, virulence factors, and interaction with its host are necessary. For that reason, several approaches have been performed using both classical genetic, cell biology, and biochemistry and the modern, holistic, and high-throughput, omic techniques. This work briefly overviews the tools available for studying Plant Pathogenic Fungi and is amply focused on MS-based Proteomics analysis, based on original papers published up to December 2009. At a methodological level, different steps in a proteomic workflow experiment are discussed. Separate sections are devoted to fungal descriptive (intracellular, subcellular, extracellular) and differential expression proteomics and interactomics. From the work published we can conclude that Proteomics, in combination with other techniques, constitutes a powerful tool for providing important information about pathogenicity and virulence factors, thus opening up new possibilities for crop disease diagnosis and crop protection.

scholarly journals Effect of Potassium Silicate Application on Populations of Asian Citrus Psyllid in Tahiti Lime

2018 ◽  
Vol 28 (5) ◽  
pp. 684-691
Author(s):  
Augusto Ramírez-Godoy ◽  
María del Pilar Vera-Hoyos ◽  
Natalia Jiménez-Beltrán ◽  
Hermann Restrepo-Díaz
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Crop Production ◽  
Resistance Mechanisms ◽  
Potassium Silicate ◽  
The Other ◽  
Asian Citrus Psyllid ◽  
Diaphorina Citri ◽  
Old Trees ◽  
Foliar Concentration

Asian citrus psyllid [ACP (Diaphorina citri)] is one of the most serious threats to the global citrus (Citrus sp.) culture, and management of ACP has depended primarily on the application of chemical insecticides. The expression of resistance mechanisms to herbivory is a key component in integrated pest management in crop production in which silicon (Si) applications can play an important role in plant–insect relationships. The objective of the current study was to evaluate the application of Si to tahiti lime (Citrus latifolia) plants under natural infestations of ACP. Two experiments were conducted using 15-month-old seedlings and 2-year-old trees, respectively. Treatments were 1) foliar Si sprays (potassium silicate) at a dose of 2 mL·L–1, 2) soil Si application at a dose of 1 kg commercial product per plant, 3) combined soil and foliar applications of Si at the doses just listed, and 4) untreated plants (control). The application of Si treatments to both seedlings and trees affected ACP oviposition, causing a reduction of 60%. Applications of Si did not affect the nutritional status (macronutrients and micronutrients) of plants in either test, except that the foliar concentration of Si tended to be greater in the soil and soil + foliar treatments than in the other treatment in both seedlings and trees. Based on these results, we suggest that Si can be added as a component of ACP integrated pest management programs.

scholarly journals The Good, the Bad, and the Risky: Can Birds Be Incorporated as Biological Control Agents into Integrated Pest Management Programs?

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Karina Garcia ◽  
Elissa M Olimpi ◽  
Daniel S Karp ◽  
David J Gonthier
Keyword(s):  
Biological Control ◽  
Food Safety ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Intraguild Predation ◽  
Crop Production ◽  
Bird Species ◽  
Crop Damage ◽  
Agricultural Systems ◽  
Biological Control Agents

Abstract Some bird species often benefit farmers by suppressing invertebrate crop pests, yet birds are rarely considered in integrated pest management (IPM) strategies. This is likely because some bird species pose risks to farmers through crop damage, intraguild predation, and food safety concerns. Nonetheless, the benefits of some bird species on crop production are often substantial. Therefore, understanding when birds are most likely to enhance crop production (and when they are most likely to depress it) is crucial for designing effective IPM strategies. Here, we briefly review the literature on birds in agricultural systems, discuss examples of how birds can provide services and disservices to crops, examine factors that influence the net effects of birds, and discuss emerging tools that will help fill key knowledge gaps surrounding the complex roles of birds in agricultural systems.

Cotton growing in West Africa.

2022 ◽  
pp. 185-215
Author(s):  
Germain Ochou Ochou ◽  
S. W. Avicor ◽  
G. A. Matthews
Keyword(s):  
West Africa ◽  
Burkina Faso ◽  
Pest Management ◽  
Crop Production ◽  
Crop Protection

Abstract This chapter focuses on the cotton growing countries in West Africa, including Cote d' Ivore, Burkina Faso, Cameroon, Chad, Niger, Senegal, Benin, Togo, Francophone West Africa, and Ghana. Crop protection, pest management, and crop production of cotton are discussed.

Pest management in cotton: a global perspective

2022 ◽  
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Management Strategies ◽  
Crop Protection ◽  
Global Perspective ◽  
High Quality ◽  
Current State

Abstract This book contains 14 chapters presenting a global overview of the background to, and the current state of crop protection and pest management in cotton crops. It shows the need for more research to select cotton cultivars with high quality fibres suitable for different cotton growing areas and develop integrated pest management strategies to minimize the use of pesticides.

Integrated pest management of plant sucking bugs (Hemiptera: Miridae) in Australian cotton: back to the future

2018 ◽  
Vol 109 (05) ◽  
pp. 561-573 ◽  
Author(s):  
Richard V. Sequeira
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Crop Protection ◽  
Ecological Factors ◽  
Bt Cotton ◽  
Feeding Damage ◽  
Related Factors ◽  
Economic Thresholds ◽  
Technological Constraints ◽  
Pest Density

AbstractCreontiades dilutus (green mirid) and C. pacificus (brown mirid) are major hemipteran pests of transgenic (Bt) cotton in Australia. Current integrated pest management (IPM) guidelines for mirids in Australian cotton, based on economic thresholds and sampling recommendations, were developed and disseminated to industry at the start of the 2005–06 growing season and have remained largely unchanged since then. However, adoption of mirid IPM guidelines by industry has been highly variable and generally well below expectation. Annual surveys of crop protection practices across the Australian cotton industry, from 2010 to 2017, indicate that a third of all mirid sprays are applied below the recommended thresholds each year. More than half of all survey respondents in the 2017 survey indicated lack of confidence in the mirid thresholds due to highly variable and disproportionate damage, a phenomenon best described as the ‘mirid enigma’. A critical review of RD&E outputs since 1998 shows that potential contributors to the mirid enigma include but are not limited to biological, ecological and methodological factors. Mirid feeding damage is likely to vary with developmental stage, gender and reproductive status. Ecological factors including trophic effects and multiple host plant usage are potential modifiers of mirid feeding damage. Methodological and technological constraints and shortcomings are evident in the threshold research done to date. Inadequate commercial sampling that results in unreliable estimates of pest density in the crop is a major contributor to the mirid enigma. Failure to account for the complexity of factors that can influence the nature and severity of mirid damage to cotton often results in fruit loss due to non-mirid related factors being incorrectly attributed to mirids. An alternative approach to mirid management based on modelling the dynamics of net fruit load (production–loss) proposed over 15 years ago is discussed.

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