disease suppression – Page 2

The Biological Product Agricultural Jiaosu Enhances Tomato Resistance to Botrytis cinerea

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Agricultural Jiaosu is a fermented product made from plant waste that effectively controls gray mold disease in tomatoes through two mechanisms: it directly kills the fungus with organic acids, and it strengthens the plant’s natural defenses. When applied as a spray to tomato leaves once a week, it reduced disease by 55%, made plants grow taller and stronger, and boosted the plants’ protective enzymes. This natural alternative to chemical fungicides offers a sustainable and safe way to protect tomato crops while maintaining environmental health.

Development and Transfer of Microbial Agrobiotechnologies in Contrasting Agrosystems: Experience of Kazakhstan and China

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Microbial consortia—communities of beneficial microorganisms—offer promising solutions to modern agriculture’s challenges by enhancing plant growth, improving stress tolerance, and restoring soil health. China has successfully integrated these microbial products into farming through strong government support and research infrastructure, while Kazakhstan has the scientific knowledge but faces funding and implementation challenges. This comparative study shows that adopting these technologies requires both scientific advancement and practical support systems tailored to each country’s specific needs.

Control effects and mechanisms of metabolites from Streptomyces ahygroscopicus var. gongzhulingensis strain 769 on sclerotinia rot in sunflowers

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Scientists discovered that a beneficial soil bacterium called Streptomyces can effectively control sunflower rot disease caused by a harmful fungus. When applied to soil or roots, this bacterium reduced disease severity by over 50% and improved plant root health and seed quality. The treatment works by both directly killing the pathogenic fungus and strengthening the plant’s natural defense systems.

Geographic variation in fungal diversity associated with leaf spot symptoms of Coffea arabica in Yunnan, China

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Researchers studied the different types of fungi found on coffee plant leaves in two regions of Yunnan, China. They discovered that the mountainous areas of Pu’er had more harmful fungi causing leaf spot disease, while the tropical lowlands of Xishuangbanna had more beneficial fungi that could naturally control pests. This information helps coffee farmers choose better disease management strategies based on their location’s unique environmental conditions.

Trichoderma brevicompactum 6311: Prevention and Control of Phytophthora capsici and Its Growth-Promoting Effect

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Researchers isolated a beneficial fungus called Trichoderma brevicompactum from pepper plant soil that can fight a serious disease affecting peppers worldwide. This fungus not only kills the disease-causing pathogen but also helps pepper plants grow better. The study shows this fungus works through multiple mechanisms including wrapping around harmful fungi and producing growth-promoting compounds. This offers farmers an environmentally friendly alternative to chemical pesticides for protecting their pepper crops.

Morphological and Molecular Characterization of Lasiodiplodia theobromae Causing Stem Gummosis Disease in Rubber Trees and Its Chemical Control Strategies

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Rubber trees in China experienced a serious stem gummosis disease that caused bark cracking and latex leakage in 2023. Scientists identified the fungus Lasiodiplodia theobromae as the cause through laboratory and molecular tests. They successfully treated the disease using a combination of copper-based fungicides applied to tree trunks and roots, preventing further damage to the trees.

Strains of Aureobasidium pullulans from Extreme Environments: New Potential Biocontrol Agents?

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Researchers studied yeast strains collected from extreme environments like deserts and cold coastlines to find natural solutions for protecting fruit crops. They found that Aureobasidium pullulans, a black yeast that thrives in harsh conditions, can effectively control brown rot disease on peaches. The strains showed remarkable ability to survive extreme temperatures and pH levels, making them promising candidates for environmentally friendly crop protection that could help agriculture adapt to climate change.

Biocontrol of Cercospora leaf spot in sugar beet by a novel Bacillus velezensis KT27 strain: Enhanced antifungal activity and growth promotion in laboratory and field conditions

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This research demonstrates that a beneficial bacteria called Bacillus velezensis KT27 can effectively control a common fungal disease in sugar beet crops. The bacteria fights the disease by producing natural antifungal compounds and can be further enhanced by exposure to inactivated fungal pathogens. Field trials showed the bacterial treatment provided disease protection almost as good as chemical fungicides while also promoting plant growth and increasing sugar beet yield by up to 15%.

Biocontrol Potential of Trichoderma Ghanense and Trichoderma Citrinoviride toward Pythium aphanidermatum

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Researchers identified two native Trichoderma fungi species that can protect cucumber plants from a destructive soil disease caused by Pythium. In laboratory and greenhouse tests, these beneficial fungi blocked pathogen growth and significantly improved plant survival and growth compared to untreated plants. These findings suggest these natural fungi could replace harmful chemical fungicides for protecting cucumbers and other crops.

Co-application of dazomet and azoxystrobin reconstructs soil microbial communities and suppresses the violet root rot of Codonopsis tangshen under a continuous cropping system

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Codonopsis tangshen is an important medicinal plant in China, but it suffers from a serious fungal disease called violet root rot when grown repeatedly in the same soil. Researchers found that treating soil with dazomet fumigant followed by azoxystrobin fungicide completely eliminated this disease while dramatically increasing plant yields. The treatment works by reducing the harmful fungus while promoting growth of beneficial soil microbes that naturally suppress disease.

therapeutic action: disease suppression