Articles tagged with Crops
A new study suggests up to 13% of US beekeepers are in danger of losing their colonies due to pesticides sprayed to contain the Zika virus. The researchers calculated the percentage of colonies that could be affected by comparing data on bee densities with areas at risk from Zika.
Researchers at UC Davis will use genomics to combat downy mildew in lettuce, a pathogen causing $3 billion industry losses annually. The project aims to reduce crop losses and improve profitability for farmers, while providing consumers with produce using fewer chemicals.
A US defense agency program aims to genetically modify crops using infectious viruses, sparking concerns about its potential military applications and the risk of creating new biological weapons. The approach, known as HEGAAs, would deliver the viruses through insects, raising questions about transparency and public deliberation.
A recent study found that a new bacterial pathogen, Erwinia tracheiphila, emerged from the introduction of foreign crop plants to North America. The pathogen's genome shows dramatic changes, suggesting it has recently evolved as a pathogen, primarily affecting cucurbits grown in intensive monocultures.
The study reveals that botanic soil amendments with popular weeds like black nightshade and jimsonweed can effectively control nematodes. Researchers report a significant reduction in female nematode populations when treated with weed extracts, making these natural alternatives a promising eco-friendly solution.
Scientists have identified a crucial gene controlling stem juiciness in sorghum, which could enhance drought tolerance but also increase disease susceptibility. The discovery has significant implications for breeding and improving crop yields.
Researchers use CRISPR to tame the wild groundcherry, increasing fruit size and weight, and reducing weed growth habit. The modified plant also exhibits fewer instances of fruit drop, addressing food safety concerns.
The importance of plant genetic resources cannot be overstated, as they provide the building blocks for crop breeding and research. Crop wild relatives, in particular, offer valuable traits like drought tolerance that can help ensure global food security.
Bicyclopyrone, a corn herbicide, shows potential as an alternative for extended residual weed control in watermelon crops. The herbicide was found to be safe and effective against common weeds, reducing yield losses by up to 82%.
A team of MIT researchers has found a way to balance the size of droplets used in spraying pesticides, making them stick to targets more effectively. The new method uses a fine mesh screen to break up larger drops into tiny ones, reducing waste and pollution.
Agricultural irrigation accounts for 70% of water use in some regions, and increased efficiency can lead to more water extraction, not less. Higher irrigation efficiency may even increase on-farm water use and groundwater extraction, argues a recent study by the American Association for the Advancement of Science.
Researchers at the University of Illinois have developed a model to identify cities that can benefit from re-circulating human-waste-derived nutrients into farm fields. This approach could promote agricultural sustainability and economic independence in developing countries.
Studies of ancient plant remains from a medieval archaeological site in Uzbekistan have shown that fruits like apples, peaches, and melons were cultivated in Central Asia roughly a thousand years ago. The Silk Road played a significant role in the spread of these crops across Eurasia, contributing to their popularity in cuisines today.
A study published in PLOS ONE suggests that southwest Amazonia was a key region for early crop cultivation, with evidence of manioc, squash, and other crops dating back over 8,000 years. The findings indicate that people in the region transitioned to agriculture before 6,000 years ago, leading to landscape modification.
A new research collection targets insect pests of pulse crops, providing guidance on integrated pest management. The collection features nine articles covering major pests, microbial control methods, and economic threshold levels.
A study conducted at Kruger park in South Africa found that honeybee pheromones safely repel elephants, showing promise for a safe elephant management tool. The pheromone-laden socks were effective in deterring elephants from approaching water holes, with 25 of 29 elephants moving away after getting close enough to smell the formulation.
Researchers have developed a low-cost, open-source field imaging system that enables real-time tracking of plant movement and lodging resistance. The system uses commercial hardware and electronics to capture high-quality videos of plant movement under windy conditions.
Researchers at the University of Illinois developed a robot called TerraSentia to count corn plants with high accuracy. The robot uses a suite of sensors, algorithms, and deep learning to capture each plant from top to bottom, overcoming challenges such as varying inter-plant spacing.
A new study from the American Association for the Advancement of Science found that mandatory labeling of genetically engineered (GE) foods in Vermont led to a 19% reduction in opposition to these products. By providing transparency, labels may alleviate public concerns about GE food safety.
Lancaster County corn production may face significant declines due to projected climate change impacts. Rising temperatures and extreme heat stress threaten corn yields, forcing farmers to reconsider their growing strategies.
A new defensive feedback control system has been developed to enable plants to strengthen their defenses against deadly pathogens, reducing crop waste globally. The system mimics an aircraft autopilot, detecting pathogen attacks and preventing weakening of the plant's immune response.
Researchers at the University of Nebraska-Lincoln have developed a 360-degree LiDAR technique to automatically collect millions of 3-D coordinates about plant traits. This approach improves accuracy and speed in collecting phenotypic data, which is essential for breeding crops that produce more food.
Researchers used citizen science to analyze slug appearances and complex weather patterns, revealing correlations between humidity, precipitation, and windspeed. This prediction method could inform targeted eradication policies against invasive species like the giant slug.
Researchers found that projected changes in temperature and humidity will not lead to greater water use in corn, allowing crop yields to thrive. This optimism is based on calculations of energy balance and evapotranspiration, which show a slight decrease in evaporation loss due to warmer temperatures.
A new study reveals that optimal timing of cultural management techniques such as careful rotary hoeing, delayed planting, and diverse crop rotations can significantly impact organic weed control. By reducing weed emergence and promoting soil fertility, these methods help crops become more competitive against weeds.
Researchers evaluated aquaculture feed and land use requirements in a simulation-based study, finding that future aquaculture production needs to be four times higher than current levels. An aquaculture-dominant diet reduces feed-crop requirements and land use compared to meat-based agriculture.
Researchers at UC San Diego have developed a gene drive system targeting the invasive spotted-wing drosophila, a fruit fly causing millions of dollars in damage. The Medea system dramatically biases inheritance rates with near-perfect efficiency, allowing for potential control of populations.
Researchers found that faba bean cover crops can add a significant amount of nitrogen to the soil, reducing the need for commercial fertilizer by up to half. The timing and management of faba bean residues also play a crucial role in maximizing the benefits of this practice.
Researchers investigated the role of alcohol in ambrosia beetles' fungal farming, finding that increased enzyme activity allows optimal fungus growth in alcohol-rich wood. The beetles' sophisticated social care system ensures optimal symbiosis between beetle and fungus.
A new study reveals that organic fertilizers from biowaste fermentation contain microplastic particles, which enter the terrestrial environment and may end up in human food. The amount of microplastic particles differs based on pre-treatment methods and plant type.
Researchers aim to develop a new type of weed control system using genetic modification techniques. The goal is to introduce specific genetic controls that could change the sex ratio of waterhemp and Palmer amaranth populations, leading to population crashes.
The USDA is funding a four-year research project to investigate the environmental benefits of woody polyculture systems for crop production. Led by University of Illinois scientists, the study aims to compare different farming practices and estimate their impact on soil health, insect diversity, pollination, and carbon sequestration.
A team of researchers has developed an algorithm that uses GPS tracking and data analytics to optimize the harvesting of hand-picked crops. By analyzing the movement of each worker in real-time, the algorithm can predict the amount of completed boxes and improve overall efficiency.
A 40-year study quantifies Bt corn's benefits for offsite crops like sweet corn, peppers, and green beans, showing 90% European corn borer population suppression. The adoption of Bt corn reduces spraying regimens and overall crop damage by up to 90%.
The TerraSentia crop phenotyping robot, developed by the University of Illinois, measures plant traits using various sensors and transmits data in real-time to operators' phones or laptops. This allows for more objective and efficient data collection, enabling better breeding pipeline outcomes.
A new study reveals that collared peccaries, red brocket deer, paca, and agoutis are the most damaging crop-raiding animals in the Amazon. Crop raiding damages farmers' livelihoods by reducing crop yields and requiring costly protection.
Washington State University researchers are working on developing resistant spinach varieties against Fusarium wilt, a devastating disease that has been crippling farmers' crops in the Pacific Northwest. The team is testing over 600 varieties of spinach and studying their DNA to find genetic markers that reveal natural resistance.
A study published in Food Chemistry shows that reducing water usage for cherry tomato crops by 50% maintains quality and increases carotenoid levels. This technique can be applied to other crops, offering a sustainable solution for farmers and consumers.
High crop intensification occurred in 28 countries, including Asia and Latin America, resulting in a 137% increase in energy use per hectare. Despite a 10% increase in land use, energy efficiency improved globally during later decades of the study period.
A Rutgers University study confirms that an abundance of wild bees is essential for efficient pollination in agricultural settings. The research found that over half of the observed species were necessary for pollination at one or more farms, highlighting the importance of biodiversity in maintaining ecosystem services.
Higher temperatures accelerate seed dispersal in key culinary crops like oilseed rape and mustard plants, limiting reproductive success. Researchers suggest new strategies for preparing crops for global warming, including developing temperature-resilient varieties and using gene-editing tools to delay seed release.
A new study reveals that increasing temperature enhances 'pod shatter' in oilseed rape, a major issue for farmers worldwide. The research establishes a genetic link between temperature and the problem, bringing closer the prospect of creating crops better adapted to warmer temperatures.
A Brazilian startup has developed an AI-powered pest control system that uses IoT technology to help farmers apply agrochemicals at the right time and in the right amount. The system, which integrates integrated pest management techniques with machine learning algorithms, is expected to increase efficiency and reduce environmental impact.
Research classifies olive varieties by their susceptibility to anthracnose, with Picual variety found to be highly resistant. Almost all Spanish cultivars are classified as susceptible or moderately susceptible, highlighting the need for farmers to choose resistant varieties.
Domesticated honeybees contribute to wild bee declines through resource competition and disease spread. Researchers recommend policies to limit managed honeybee impact, including hive size limits and controls on hives in protected areas.
A study by Marty Williams found that workhorse sweet corn hybrids consistently perform well across ideal and less-than-ideal growing conditions, making them a better choice for processors. The research suggests that the 'workhorse' hybrid is preferred over the 'racehorse' due to its stability in variable weather conditions.
A new multi-institution report offers agronomic data for five cellulosic feedstocks, including switchgrass, Miscanthus, and sorghum. The study provides yield potential maps across the US, highlighting areas with high yield potential, but also notes limitations due to droughts and fertilizer application.
A new study from WCS, Duke University, and the Centre for Wildlife Studies in India found that communities near Rajasthan wildlife reserves show a high tolerance for wildlife. Despite experiencing losses, 85% of respondents believed protecting wildlife was important.
Engineers at Iowa State University have developed a new type of wearable sensor for plants, using graphene technology to measure water use in crops. The sensors are made by patterning and transferring graphene-based nanomaterials onto tape, allowing for precise measurements of transpiration from leaves.
Researchers identified annual ryegrass as the most economically viable option to provide early season forage after alfalfa winterkill. This forage crop offers high yields and nutrient content, making it an effective way for farmers to offset losses.
The University of Tennessee is studying hops production in others states and developing educational materials to aid in the evaluation of hops production in Tennessee. The goal is to help Tennessee farmers capitalize on a new market opportunity for locally-grown specialty crops like hops.
Researchers have developed a new crop imaging system that detects chlorophyll fluorescence to monitor plant health and growth. The system can image larger areas than existing technology, providing more accurate assessments of crop health and potential applications for precision agriculture and high-throughput phenotyping.
A new study proposes a generic methodological framework to accurately quantify the greenhouse gas footprints of crop cultivation systems. The framework takes into account direct and indirect contributors, providing example values of emission factors and emphasizing the combination of measurements and model simulations.
Researchers found that high temperatures weaken plant defenses while strengthening bacterial attacks, making plants more vulnerable to infection. However, treatment with a chemical that mimics salicylic acid can effectively protect plants from infection at elevated temperatures.
Researchers found that a multi-spectral camera mounted on a quad-copter provided more accurate results than a digital camera, with over 93% accuracy in estimating plant populations. The study aims to improve crop monitoring efficiency and profitability for farmers.
Scientists at the University of Liverpool have discovered the molecular processes behind crassulacean acid metabolism (CAM) photosynthesis in succulents. They found that the PPCK enzyme is essential for optimizing CO2 capture and storage, and that alterations in the circadian clock can affect CAM function.
MIT researchers have developed sensors that can be printed onto plant leaves to reveal when they are experiencing a water shortage. These sensors take advantage of plants' stomata and can detect even slight changes in water pressure, allowing for early warnings in agricultural settings.
The University of California, Santa Cruz, has developed solar greenhouses that can generate electricity while promoting plant growth. Eighty percent of plants showed no impact, while 20% grew better under the magenta windows.
A UC-led genomic study suggests that humans gathered wild grapes for centuries before cultivating them as a crop. The research found evidence of human consumption of grapes dating back approximately 22,000 years, prior to the traditional domestication period of around 7,000-10,000 years ago.
Scientists at the University of Georgia developed an efficient living mulch system that benefits both corn production and soil health. By removing portions of clover after each harvest, farmers can reap cost savings from reduced herbicide and nitrogen fertilizer usage.