The study reveals distinct responses of Arabidopsis thaliana to two generalist caterpillar species, the cabbage looper and beet armyworm. Researchers found that plant defense mechanisms differ in response to these caterpillars, suggesting potential strategies for coping with herbivory.
Scientists have identified a novel R gene in a diploid wild potato that confers high resistance to the oomycete Phytophthora infestans, the causative agent of late blight. This discovery provides new resources for breeding improved potato varieties and offers insights into the mechanisms underlying plant immunity.
A new study has identified 37 genes, including 10 new ones, that show resistance to stripe rust in spring wheat varieties. This discovery could lead to the development of more resistant varieties, reducing chemical application and damage to crops.
Cotton growers can improve efficiency by using models to correlate development milestones, estimate crop status, and optimize input use. Thermal models, such as heat units, predict crop maturity, informing applications of plant growth regulators and end-of-season management.
Foliar fertilization improves efficiency and corrects deficiencies in cotton yields. The 4Rs approach to nutrient management is essential for economic, environmental, and social factors.
University of Tennessee Extension specialists share perspectives on integrating cover crops into cotton systems, highlighting benefits and drawbacks. Earlier termination of the cover crop and moving residue away from rows can improve stand establishment, according to research.
Planting cover crops is a key strategy for effective integrated weed management in cotton, offering benefits like improved Palmer amaranth control and reduced herbicide input. Research shows that cover crops can also mitigate wind and water erosion, while minimizing labor and improving cotton stand.
Harvest aids accelerate natural processes to minimize trash, improve quality, and expedite harvesting. The timing of application is crucial, considering factors like labor availability, weather, and regional preferences.
Researchers discovered that plant pathogens like Phytophthora infestans reorder the physical structures of effectors to escape plant recognition. This allows them to persist in plants and evade integrated resistance strategies.
Researchers discovered that biological control agents can substantially reduce SDS pathogen growth and promote soybean defense. Trichoderma isolates interact with roots and activate plant genes to fend off pathogens, providing a sustainable tool for managing yield losses.
The study reveals that chitin oligosaccharides trigger cytosolic calcium oscillations, which propagate across the whole plant and synchronize cell responses. This synchronized signal affects transcription of defense-related genes, allowing plants to mount a uniform defense response.
Scientists have developed a new genetic approach to improve biological nitrogen fixation in soybeans by leveraging wild ancestors' genetic diversity. They found that specific genes interact with beneficial microbes to alter the number of nodules a root system forms.
Researchers at Mississippi State University recommend using an integrated approach that combines seed-applied nematicides with in-furrow nematicides to manage reniform nematodes in cotton. This approach can improve cotton yields while reducing production costs, making it a economically viable option for farmers.
Researchers found that adjusting planter depth and downforce according to environmental conditions can improve crop emergence and yield. Studies showed that larger seeds produce a slight increase in emergence, while hill-drop planting overcomes inadequate field conditions.
Using a weather-based decision support system can significantly improve Cercospora leaf spot control in table beet by reducing unnecessary fungicide applications. The approach also helps minimize the risk of resistance development due to single-site modes of action.
Emerging disease has spread to ten US states and South America, infecting over 80% of corn plants in some fields. Research reveals global spread, host range, and potential DNA transfers among strains.
Researchers used HTS to analyze viral genomes, tracing the evolutionary history of two emerging viruses, GPGV and GINV. They found that these viruses likely originated in Asia before spreading globally through trade and human activity.
Plant pathologists at Auburn University conducted a field trial to assess the economic damage of reniform nematodes on cotton yields. The study found that cotton yields were 50% lower in fields infested with the nematode compared to clean fields.
Researchers have identified a link between yield decline and soilborne disease symptoms in winter squash, including stunting and root rot. The study's findings suggest that rotating out of winter squash production for at least 3-4 years can help prevent disease symptoms.
Scientists have found that cell wall extracts from immune-active plants can trigger plant immunity and disease resistance, providing a new approach to protecting crops against pathogens and pests. This breakthrough discovery could lead to the development of simple, sustainable, and effective treatments to reduce crop losses.
Researchers surveyed commercial and residential citrus trees in Texas from 2007 to 2017, finding that the proportion of infected trees and psyllids increased exponentially over time. The study suggests that a flatter progression of citrus greening disease epidemics could be achieved through targeted protection and management strategies.
Researchers paired hyperspectral sensors with machine learning and molecular assays to differentiate between late blight clonal lineages. They found that accuracy increased at early stages of infection before symptoms appeared, suggesting a link to pre-symptomatic effector expression differences.
Research provides basic recommendations for creating pollinator-friendly gardens in urban areas, considering factors such as plant selection and landscape complexity. Key findings highlight the potential of human-managed green spaces to support declining pollinator populations.
Researchers identified a new gain-of-function mutation in the PHYTOALEXIN DEFICIENT4 (PAD4) gene, which enhances cell death during fungal infection and strengthens plant resistance to pathogens. The discovery sheds light on how plants control stress responses and provides insights into potential strategies for enhancing crop yields.
Research shows that fungicides Prothioconazole and pydiflumetofen provide effective control of Fusarium wilt in watermelon, regardless of application rate or method. These findings suggest that pydiflumetofen could be used as an additional mode of action for growers, reducing selection for fungicide resistance.
A new dataset and diagnostic platform have been developed to help tomato growers detect and prevent bacterial canker, a disease caused by Clavibacter michiganensis. The platform uses genetic regions specific to the pathogen, reducing false positives and making it easier for growers to screen infected plant and seed materials.
A meta-analysis of biotrophs, hemibiotrophs, and necrotrophs found a significant relationship between trophic type and latent period. Hemibiotrophic pathogens have the longest latent periods, while necrotrophic pathogens have the shortest.
A study found 26 bacterial and 31 fungal species in coffee roots, indicating beneficial relationships and improving management practices for climate change predictions.
The sweet potato microbiome research is a vital step towards increasing crop yields and disease resistance, particularly in sub-Saharan Africa. The study found that the microbiome follows a two-step model of development, with variability across farms but commonalities within fields.
Scientists discover how wild tomatoes resist bacterial canker by colonizing protoxylem vessels. The pathogen's inability to spread through the xylem in wild tomatoes holds promise for future breeding efforts.
Researchers at Texas A&M University discovered that a majority of fungi associated with cotton can reduce galling caused by the Southern root knot nematode. The study found highly repeatable reductions in gall formation across independent trials, suggesting these fungi may have previously unappreciated positive effects on plant health.
Research by plant pathologist Gary Stacey aims to develop effective inoculation protocols for biological nitrogen fixation in non-leguminous crops. The study found that bacterial colonization leads to significant shifts in plant metabolism, with some metabolites more abundant in inoculated plants.
The development of agricultural microbiome metadata standards aims to standardize recording and sharing practices, enabling researchers to integrate data across studies. By establishing a shared consensus on what needs to be reported about microbiome samples, the long-term value of microbiome data can increase.
Researchers identified peptides that trigger immune responses in multiple plant species, including citrus, potentially preventing or reducing yield loss from citrus greening. This discovery offers a new hope for the devastated citrus industry, where no resistant varieties are available and limited disease control measures exist.
A new aflatoxin biocontrol product has been developed for use in Senegal, reducing contamination in groundnut and maize crops. The product, Aflasafe SN01, includes four atoxigenic isolates native to Senegal and is highly effective in hot, drought-prone areas.
A study found that fall precipitation is linked to increased curly top disease in New Mexico crops, allowing farmers to predict and manage the disease. The research also shows that good weed control methods can reduce beet leafhopper numbers, leading to improved crop yields.
Researchers discovered that potato plants are most susceptible to infection during the first three weeks of the growing season, leading to reduced tuber yield and quality. This age-related resistance mechanism suggests that management programs should focus on early stages of potato development to protect crops.
A rapid DNA extraction and diagnostic method has been developed, allowing for same-day management decisions in insect-transmitted plant diseases. This technique reduced the identification time from two weeks to less than one hour.
A new study reveals how symbiotic viruses in aphid saliva suppress plants' defense mechanisms, allowing aphids to thrive on new hosts. This unique relationship has potential applications for controlling aphid dispersal and improving crop yields.
Researchers have identified chickpea genes that offer robust non-host resistance to Alternaria blight, a devastating fungal disease affecting Brassica crops. The study reveals these genes can suppress fungal development and colonization in mustard plants, paving the way for blight-resistant crop varieties.
Researchers discovered that nitrogen fertilizers shape the composition of individual members of the tomato microbiota, with Actinobacteria colonizing root tissues. The diet represented by different nitrogen treatments determines the plant microbiota, highlighting potential targets for optimizing plant nutrition and global food security.
Researchers discovered diverse fungal communities associated with camas seeds and roots, which may support its establishment in restored habitats. These findings could help scientists restore native prairie and wetland ecosystems in the Pacific Northwest.
Crop residues serve as a key microbial ecosystem, contributing to both crop health and disease susceptibility. The microbiomes of crop residues may play a crucial role in innovative disease management strategies.
Researchers at UC Davis have identified novel inhibitors that can disrupt redox signaling to prevent haustorium initiation in parasitic plants. This breakthrough could lead to new control methods against economically damaging agricultural pests.
The Fundamental Aspects of Plant Viruses focus issue in New Phytopathology emphasizes recent breakthroughs in understanding plant viruses and their impact on agriculture. The issue features studies on virus-host and vector interactions, replication, and pathogenicity, shedding light on disease development and horizontal transmission.
A recent focus issue explores the cell biology of virus-host and virus-vector interactions to improve crop management. Research reveals insights into plasmodesmatal connections, cell-cell signaling, and biotechnological approaches for host resistance.
A study evaluated various commercial products to recover cotton plants from reduced dicamba and 2,4-D rates. No recovery treatments regained yields compared to untreated plots for either herbicide, with inconsistent trends from year to year.
Integrating a cover crop with broiler litter in no-till dryland cotton systems increases plant residue, cotton yield, and infiltration while improving soil health indicators. This approach helps reduce fertilizer costs and protect the environment.
A collaboration between growers and scientists has identified practices increasing soil health in West Texas cotton production, including crop rotation, cover crops, and residue management. These regenerative practices improve soil resiliency to climate extremes.
Stemphylium leaf blight has emerged as the most dominant foliar disease in New York onion crops, causing lesions that lead to loss of green leaf area and potentially affecting bulb size and quality. The re-emergence of SLB is attributed to fungicide resistance, leading to its removal from commercial production.