scholarly journals Organic Management of Vegetable Diseases Part I: Soilborne Pathogens

EDIS ◽  
2008 ◽  
Vol 2008 (5) ◽  
Author(s):  
Gary Vallad ◽  
Amanda Gevens
Keyword(s):  
Plant Pathology ◽  
Disease Control ◽  
Plant Disease ◽  
Vegetable Production ◽  
Soilborne Pathogens ◽  
Organic Management ◽  
Fact Sheet ◽  
Plant Disease Control ◽  
Organic Vegetable Production ◽  
Certified Organic

PP-253, a 5-page fact sheet by Gary Vallad and Amanda Gevens, is an overview of six “REPEAT” principles of plant-disease control (Resistance, Eradication, Protection, Exclusion, Avoidance, and Therapy) with an emphasis on methods acceptable in certified organic vegetable production for controlling plant disease caused by soilborne pathogens. Published by the UF Department of Plant Pathology, June 2008. PP253/PP169: Organic Management of Vegetable Diseases Part I: Soilborne Pathogens (ufl.edu)

A century of fungicide evolution

2005 ◽  
Vol 143 (1) ◽  
pp. 11-25 ◽  
Author(s):  
P. E. RUSSELL
Keyword(s):  
Disease Control ◽  
Plant Disease ◽  
Integrated Control ◽  
Crop Protection ◽  
Vegetable Production ◽  
Legal Obligations ◽  
Plant Disease Control ◽  
Key Factor ◽  
Inorganic Chemical ◽  
The 1960S

Up until the 1940s chemical disease control relied upon inorganic chemical preparations, frequently prepared by the user. Key areas of use were horticulture and vegetable production with key targets being diseases that caused easily recognized damage. After this era and as the damaging effects of more crop diseases became obvious by the use of chemical control, the crop protection industry expanded rapidly and research to discover new active materials began in earnest. As new areas of chemistry were introduced, each one aiming to offer advantages over the previous ones, chemical families were born with research-based companies frequently adopting patent-busting strategies in order to capitalize on the developing fungicides market. Systemic fungicides offered new opportunities in disease control. The rise in Research and Development (R & D) and the increase in the number and quantity of chemicals being applied led to the introduction of regulation in the 1950s, initially on a voluntary basis, but now strictly controlled by legal obligations. In the 1960s, the market switched from horticulture and vegetables to one in which the main agricultural crops dominated. The cereal market, initially based on barley, moved to the current dominant market of wheat. The costs of R & D have risen dramatically in recent years and have become dominated not by the discovery process per se but by the provision of all the extra data needed to obtain registration. These rising costs happened at a time when markets showed little growth and are currently showing some decline. This has resulted in an industry that is continually striving to cut costs, normally by mergers and take-overs. As a consequence, many plant disease problems are not now being targeted by the industry and special measures have been introduced to ensure adequate disease control is available for these minor markets. Plant disease control will remain a necessity and fungicides will remain as a key factor in such control, although it is predicted that integrated control using chemicals, biological controls and biotechnology approaches will begin to dominate.

scholarly journals Chemical Control Guide For Diseases of Vegetables Revision No. 15

EDIS ◽  
1969 ◽  
Vol 2003 (3) ◽  
Author(s):  
Tom Kucharek
Keyword(s):  
Plant Pathology ◽  
Disease Control ◽  
Chemical Control ◽  
Plant Disease ◽  
Pathology Report ◽  
Plant Disease Control

Extension plant pathology report No. 6 Gainesville, Florida, November, 2002. The purpose of this listing is to guide you with legal use of sprayable plant disease control chemicals. 

2012–2016 On-Farm Evaluation of Fungicide Programs for Peanut Disease Control in Hamilton County, Florida

EDIS ◽  
2017 ◽  
Vol 2017 (4) ◽  
Author(s):  
Keith W. Wynn ◽  
Nicholas S. Dufault ◽  
Rebecca L. Barocco
Keyword(s):  
Plant Pathology ◽  
Disease Control ◽  
Leaf Spot ◽  
Fungal Disease ◽  
White Mold ◽  
Stem Rot ◽  
Late Leaf Spot ◽  
Fact Sheet ◽  
On Farm ◽  
Hamilton County

This ten-page fact sheet includes a summary of various fungicide spray programs for fungal disease control of early leaf spot, late leaf spot, and white mold/stem rot of peanut in 2012-2016 on-farm trials in Hamilton County. Written by K.W. Wynn, N.S. Dufault, and R.L. Barocco and published by the Plant Pathology Department.http://edis.ifas.ufl.edu/pp334

scholarly journals Precision agriculture and geospatial techniques for sustainable disease control

2021 ◽  
Author(s):  
Daniel P. Roberts ◽  
Nicholas M. Short ◽  
James Sill ◽  
Dilip K. Lakshman ◽  
Xiaojia Hu ◽  
...  
Keyword(s):  
Big Data ◽  
Disease Control ◽  
Crop Production ◽  
Plant Disease ◽  
Production Systems ◽  
Cropping Systems ◽  
Data Driven ◽  
Agricultural Community ◽  
Plant Disease Control ◽  
Crop Germplasm

AbstractThe agricultural community is confronted with dual challenges; increasing production of nutritionally dense food and decreasing the impacts of these crop production systems on the land, water, and climate. Control of plant pathogens will figure prominently in meeting these challenges as plant diseases cause significant yield and economic losses to crops responsible for feeding a large portion of the world population. New approaches and technologies to enhance sustainability of crop production systems and, importantly, plant disease control need to be developed and adopted. By leveraging advanced geoinformatic techniques, advances in computing and sensing infrastructure (e.g., cloud-based, big data-driven applications) will aid in the monitoring and management of pesticides and biologicals, such as cover crops and beneficial microbes, to reduce the impact of plant disease control and cropping systems on the environment. This includes geospatial tools being developed to aid the farmer in managing cropping system and disease management strategies that are more sustainable but increasingly complex. Geoinformatics and cloud-based, big data-driven applications are also being enlisted to speed up crop germplasm improvement; crop germplasm that has enhanced tolerance to pathogens and abiotic stress and is in tune with different cropping systems and environmental conditions is needed. Finally, advanced geoinformatic techniques and advances in computing infrastructure allow a more collaborative framework amongst scientists, policymakers, and the agricultural community to speed the development, transfer, and adoption of these sustainable technologies.

scholarly journals Plant Disease Control Efficacy of Platycladus orientalis and Its Antifungal Compounds

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1496
Author(s):  
Sohyun Bae ◽  
Jae Woo Han ◽  
Quang Le Dang ◽  
Hun Kim ◽  
Gyung Ja Choi
Keyword(s):  
Disease Control ◽  
Rice Blast ◽  
Plant Disease ◽  
Methanol Extract ◽  
Crop Protection ◽  
Ethyl Acetate Fraction ◽  
Antifungal Compounds ◽  
Control Efficacy ◽  
Platycladus Orientalis ◽  
Plant Disease Control

Plants contain a number of bioactive compounds that exhibit antimicrobial activity, which can be recognized as an important source of agrochemicals for plant disease control. In searching for natural alternatives to synthetic fungicides, we found that a methanol extract of the plant species Platycladus orientalis suppressed the disease development of rice blast caused by Magnaporthe oryzae. Through a series of chromatography procedures in combination with activity-guided fractionation, we isolated and identified a total of eleven compounds including four labdane-type diterpenes (1–4), six isopimarane-type diterpenes (5–10), and one sesquiterpene (11). Of the identified compounds, the MIC values of compounds 1, 2, 5 & 6 mixture, 9, and 11 ranged from 100 to 200 μg/mL against M. oryzae, whereas the other compounds were over 200 μg/mL. When rice plants were treated with the antifungal compounds, compounds 1, 2, and 9 effectively suppressed the development of rice blast at all concentrations tested by over 75% compared to the non-treatment control. In addition, a mixture of compounds 5 & 6 that constituted 66% of the P. orientalis ethyl acetate fraction also exhibited a moderate disease control efficacy. Together, our data suggest that the methanol extract of P. orientalis including terpenoid compounds has potential as a crop protection agent.

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