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Tiny crop-health sensors could help cut the cost of groceries

Researchers developed a compact sensor system with infrared imaging capabilities that can be fitted to drones for remote crop monitoring. The system can rapidly switch between edge detection and detailed infrared imaging, allowing farmers to pinpoint specific crop needs and boost harvests.

SourceRMIT University·JournalNature Communications·TypeExperimental study·DateJun 5, 2024

A greener, more effective way to kill termites

Researchers at the University of California - Riverside have discovered a highly effective and nontoxic way to kill western drywood termites using a pleasant-smelling chemical called pinene. The method involves releasing the scent of pinene, which attracts termites and guides them to a spot where insecticide is injected into wood.

SourceUniversity of California - Riverside·JournalJournal of Economic Entomology·DateMay 31, 2024

Biodiversity in the margins: Merging farmlands affects natural pest control

A new study found that removing hedgerows and field margins decreases the diversity and abundance of arthropods, which can lead to reduced natural pest control. The research suggests that using flowering plants in field margins and implementing agri-environmental measures can be effective ways to increase farmland biodiversity.

SourceXi'an Jiaotong-Liverpool University·JournalJournal of Applied Ecology·TypeExperimental study·DateMay 28, 2024

Regional differences in bird diversity in agroforestry systems

A study by the University of Göttingen investigated regional differences in bird diversity within cocoa agroforestry systems in Peru. The research team found that biodiversity decreases with increasing distance from natural forests, with greater richness of species found in humid subtropical forests than in dry tropical forests.

SourceUniversity of Göttingen·JournalConservation Science and Practice·TypeObservational study·DateMay 21, 2024

Genetics provide key to fight crown-of-thorns starfish

Researchers have identified over 2000 protein-coding genes that change significantly between summer and winter in the starfish's reproductive process. This study provides a promising breakthrough in understanding how crown-of-thorns starfish communicate during reproduction, which could lead to the development of natural pest control me...

SourceUniversity of Queensland·JournalPLOS Biology·DateMay 14, 2024

Gene seekers discover atypical two genes that control multiple valuable soybean traits

A team of researchers has identified two long noncoding RNA genes that control multiple traits in wild soybeans, including insect resistance and leaf growth. These findings can aid in the development of new domesticated soybean varieties with improved seed composition and nutritional traits.

SourcePurdue University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 28, 2024

Study explains how a fungus can control the Corn leafhopper, an extremely harmful pest

The study found that the fungus begins affecting the insect's behavior two days after spraying bioinsecticides, reducing its feeding activity and pathogen transmission. The fungus is a natural, wild species that does not pose a hazard to human or animal consumption, making it a potential alternative for organic crop control.

Scientists develop novel RNA- or DNA-based substances to protect plants from viruses

Researchers at Martin-Luther-Universität Halle-Wittenberg developed novel RNA- or DNA-based substances that reliably fight off viral infections in plants. The new approach uses antisense oligonucleotides to target specific viral RNA molecules, achieving an impressive up to 90% success rate against a common virus.

SourceMartin-Luther-Universität Halle-Wittenberg·JournalInternational Journal of Molecular Sciences·TypeExperimental study·DateFeb 29, 2024

Biodiversity appears to strongly suppress pathogens and pests in many plant and animal systems, but this “dilution effect” can vary strikingly in magnitude

A study using forest inventory data from over 25,000 plots found that biodiversity strongly suppresses pathogens and pests in many plant and animal systems. The 'dilution effect' of biodiversity on forest pests is jointly controlled by diversity and phylogenetic composition.

SourcePLOS·JournalPLOS Biology·TypeData/statistical analysis·DateFeb 27, 2024

Biodegradable sensor monitors levels of pesticides via direct contact with surface of fruit and vegetables

The biodegradable sensor, made from plant-based material, can detect pesticide levels in minutes and has the potential to help assure food safety. The study showed that washing and immersion were insufficient to remove residues of pesticides, highlighting the need for reliable detection methods.

Study: Wild pig populations in U.S. can be managed

Researchers found a 70% reduction in wild pig populations and a corresponding decline in environmental rooting damage within 24 months of control efforts. The study suggests that management efforts exceeding 40-60% population removal per year can significantly reduce populations, but unknown is the rate of recovery if efforts cease.

SourceUniversity of Georgia·JournalPest Management Science·DateOct 10, 2023

Invertebrate decline reduces natural pest control and decomposition of organic matter

A recent study published in Current Biology found that invertebrate decline affects aboveground pest control and belowground decomposition of organic matter. The loss of invertebrates leads to a reduction in important ecosystem services and decoupling of ecosystem processes, making immediate protection measures necessary.

SourceGerman Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig·JournalCurrent Biology·TypeExperimental study·DateSep 26, 2023

ARS scientists and research partners work on developing field diagnostic kit for Lebbeck mealybug with a safer alternative

Researchers found a 5% sodium hydroxide solution successfully turns live Lebbeck mealybug specimens green, identical to the 10% potassium hydroxide solution. The new alternative is less corrosive, more water soluble and less expensive.

SourceUS Department of Agriculture - Agricultural Research Service·JournalJournal of Applied Entomology·TypeExperimental study·DateSep 6, 2023

When a rat smells a rat

Scientists at the University of Tokyo have discovered a pheromone that reduces fear in rats, which could lead to more humane methods of pest control. The researchers found that this pheromone, 2-methylbutyric acid, can calm both lab and wild rats, reducing their fear responses.

SourceUniversity of Tokyo·JournaliScience·TypeExperimental study·DateJun 20, 2023

Building a blueprint for zero-emissions agriculture

The article discusses the challenges of reducing agricultural greenhouse gas emissions to zero, but found that technology can help farmers lower pollution by up to 45 percent. The study proposes using carbon-free energy sources, sustainably produced bioenergy, and techniques to capture emissions from these energy sources.

SourceCarnegie Institution for Science·JournalEnvironmental Research Letters·TypeData/statistical analysis·DateJun 14, 2023

Perfume component helps lure male moth pests

Researchers at North Carolina State University found that adding nonanal, a chemical used in perfumes, to a pheromone blend increases its effectiveness in mimicking female fall armyworm calls. The discovery could help farmers detect and control fall armyworm populations more effectively.

SourceNorth Carolina State University·JournalPest Management Science·TypeExperimental study·DateApr 11, 2023

Get help with integrated weed management

A new digital tool, IWM Tool, has been developed to help farmers design and implement integrated weed management strategies, reducing pesticide use by 50% by 2030. The tool provides a user-friendly approach to diversify weed management strategies, fitting specific needs.

SourceAarhus University·JournalEuropean Journal of Agronomy·DateMar 24, 2023

Researchers get to the “bottom” of how beetles use their butts to stay hydrated

Researchers have shed light on the molecular mechanisms allowing beetles to absorb water rectally, a property enabling them to survive in extremely dry environments. This knowledge could be used to develop more targeted and eco-friendly methods to combat beetle species that destroy food production.

SourceUniversity of Copenhagen - Faculty of Science·JournalProceedings of the National Academy of Sciences·DateMar 21, 2023

Two fungi work together to kill fig trees

Researchers at Nagoya University discovered that when Ceratocystis ficicola and Fusarium kuroshium fungi are combined, fig saplings experience rapid wilting. The two fungi work together to cause more damage than either one alone, highlighting the importance of considering co-occurring microorganisms in disease control strategies.

SourceNagoya University·JournalMicroorganisms·DateDec 15, 2022

How selfish genes succeed

A study published in PLoS Genetics reveals the mechanism by which a selfish gene in yeast, wtf4, enables its function using a poison-antidote strategy. This strategy involves the production of poison protein that can kill spores, but is countered by an antidote protein produced only by those spores that inherit the drive allele.

SourceStowers Institute for Medical Research·JournalPLOS Genetics·TypeExperimental study·DateDec 8, 2022

Understanding the cryptic role fungi play in ecosystems

Researchers analyzed over 4,500 documents to understand fungal dispersal across spatial scales. They identified four scales of movement, from microscopic to landscape, and found that climate change affects where fungi reside. More data is needed to understand the biodiversity of fungi and their movement in ecosystems.

SourceDartmouth College·JournalAnnual Review of Ecology Evolution and Systematics·TypeLiterature review·DateDec 5, 2022