pheromone Articles
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An ant colony optimisation approach considering jointly scheduling and preventive maintenance in the flowshop sequencing problem
This paper presents INTACO, a hybrid Ant Colony Optimisation (ACO) algorithm coupled with a local search applied to the joint production and preventive maintenance scheduling problem in the flowshop sequencing problem. INTACO uses pheromone trail information to perform modifications on complete joint production and preventive maintenance solutions unlike more traditional ant systems that use ...
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Response to host plant odors and aggregation pheromone by larvae of the Colorado potato beetle on a servosphere
Using a servosphere (locomotion compensator), locomotory behavior of Colorado potato beetle Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae) larvae was measured in detail in response to pulsed and non-pulsed odors of hostplant and conspecific pheromone. Second instars showed decreased straightness of movement, and all larvae showed decreased speed, in response to potato odor. Change in ...
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Pheromone Release Technology: A Powerful Tool in the Field of Chemical Communication
Introduction of Pheromone Release Technology Pheromone release technology refers to the use of chemicals known as pheromones for communication purposes in various industries. Pheromones are chemical substances that are secreted by an organism and are capable of triggering a response in another organism of the same species. They are often used as a means of signaling in the animal kingdom and have ...
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Pheromone Solid-phase Synthesis: A Revolutionary Advancement in the Synthesis of Pheromones
Introduction of Pheromone Solid-phase Synthesis Pheromones are a fascinating class of molecules that are used by many organisms, including insects and mammals, to communicate with one another. They are chemical signals that convey information about an individual's identity, reproductive status, and location, among other things. The synthesis of pheromones is a complex process that requires a deep ...
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A Brief Introduction to Insect Pheromone
Insect pheromones are compounds used to express various information such as aggregation, foraging, mating, and vigilance. Insect pheromones exist in insects in nature, and all insects produce and recognize pheromones. Insect pheromones have been widely used in pest management internationally in recent years as they are green and environmentally friendly, making fruit and vegetable safer. What are ...
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Unlocking the Power of Oleyl Alcohol: The Secret Pheromone for Pest Management
What is oleyl alcohol? Oleyl alcohol (CAS 143-28-2) is a fatty alcohol with a chemical formula of C18H36O. It is a colorless liquid that is soluble in both water and most organic solvents. Oleyl alcohol is also known as cis-9-octadecen-1-ol or 9-octadecenol. It is derived from fatty acids and is commonly found in natural sources such as fish oils, vegetable oils, and animal fats. Oleyl alcohol ...
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Semios Receives US EPA Approval for 3 New Pheromones To Target the Most Destructive Pests in the Apple & Pear Industry
Vancouver, BC, November 24, 2014 – Semios, provider of real-time agricultural information and precision pest management tools, has been given US EPA approval for three aerosol pheromone products that disrupt the mating of codling moth and oriental fruit moth. “Our new formula performs extremely well at lower temperatures, emitting a drier mist that disperses quickly across an ...
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Beyond Chemistry: Discover the Power of Pheromone Activity Screening
Pheromones are chemicals produced by animals, including humans that have the ability to influence the physiology or behavior of other individuals of the same species. They are widely used in many areas, such as agriculture, pest management, and reproduction strategy. The identification and characterization of pheromones can be a challenging task, requiring a combination of analytical and ...
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Mastrus ridibundus parasitoids eavesdrop on cocoon-spinning codling moth, Cydia pomonella, larvae
Cocoon-spinning larvae of the codling moth, Cydia pomonella L. (Lepidoptera: Olethreutidae) employ a pheromone that attracts or arrests conspecifics seeking pupation sites. Such intraspecific communication signals are important cues for illicit receivers such as parasitoids to exploit. We tested the hypothesis that the prepupal C. pomonella parasitoid Mastrus ridibundus Gravenhorst (Hymenoptera: ...
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Mitogen-activated protein kinase hog1 mediates adaptation to g1 checkpoint arrest during arsenite and hyperosmotic stress
Cells slow down cell cycle progression in order to adapt to unfavorable stress conditions. Yeast (Saccharomyces cerevisiae) responds to osmotic stress by triggering G1 and G2 checkpoint delays that are dependent on the mitogen-activated protein kinase (MAPK) Hog1. The high-osmolarity glycerol (HOG) pathway is also activated by arsenite, and the hog1 mutant is highly sensitive to arsenite, partly ...
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Mitogen-activated protein kinase hog1 mediates adaptation to g1 checkpoint arrest during arsenite and hyperosmotic stress
Cells slow down cell cycle progression in order to adapt to unfavorable stress conditions. Yeast (Saccharomyces cerevisiae) responds to osmotic stress by triggering G1 and G2 checkpoint delays that are dependent on the mitogen-activated protein kinase (MAPK) Hog1. The high-osmolarity glycerol (HOG) pathway is also activated by arsenite, and the hog1 mutant is highly sensitive to arsenite, partly ...
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Modeling flight activity and population dynamics of the pine engraver, Ips pini, in the Great Lakes region: effects of weather and predators over short time scales
Ascertaining the relative effects of factors such as weather and predation on population dynamics, and determining the time scales on which they operate, is important to our understanding of basic ecology and pest management. In this study, we sampled the pine engraver Ips pini (Say) (Coleoptera: Scolytidae) and its predominant predators Thanasimus dubius (F.) (Coleoptera: Cleridae) and Platysoma ...
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Controls morphogenesis, pheromone response, and pathogenicity in the fungal pathogen ustilago maydis
Ustilago maydis, a pathogen of maize, is a useful model for the analysis of mating, pathogenicity, and the morphological transition between budding and filamentous growth in fungi. As in other fungi, these processes are regulated by conserved signaling mechanisms, including the cyclic AMP (cAMP)/protein kinase A (PKA) pathway and at least one mitogen-activated protein kinase (MAP kinase) pathway. ...
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Regulation of sexual development in the basal termite Cryptotermes secundus: mutilation, pheromonal manipulation or honest signal?
Social insect colonies are not the harmonious entities they were once considered. Considerable conflicts exist between colony members, as has been shown for Hymenoptera. For termites, similar studies are lacking, but aggressive manipulations have been claimed to regulate sexual development, and even to account for the evolution of workers. This study on a basal termite, Cryptotermes secundus ...
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2020 Navel Orangeworm Trap Catch Update
Recent reports show that 2020 degree day accumulations are shaping up to be similar to that of 2015. “Traps have been going up early this year because it has been so warm. Heat unit accumulations since January 1 this year are similar to what we recorded in 2015, which was the earliest navel orangeworm biofix in many decades at the Nickels Soil Lab.” Franz Niederholzer, UC Farm ...
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The DNA of the U.S. Regulatory System: Are We Getting It Right For Synthetic Biology?
U.S. regulatory oversight of synthetic biology across the board needs to be modernized to reflect and address the promising technologies routinely entering the market. From a statutory perspective, the pertinent laws appear sufficiently broad to empower federal agencies to address potential risks and promote the potential benefits of synthetic biology. The regulatory infrastructure, however, is ...
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Insecticides and Metabolite Standards
Introduction to Insecticides Insecticides are a class of chemicals mainly used to control agricultural pests and urban sanitation pests. The use of insecticides has a long history, a large amount and a variety of varieties, which have played an extremely important role in increasing agricultural production. 1. Classification of Insecticides 1.1 Source According to the source classification, ...
By BOC Sciences
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Can bats reduce nut farmers’ pesticide use?
Ecologist Katherine Ingram is on a quest to quantify the economic value of insect-eating bats in walnut groves. For the past three years, Katherine Ingram has had a most unusual summer job: catching bats and studying their droppings to see what they eat. A doctoral student in ecology at the University of California, Davis, Ingram is exploring the role bats can play as winged soldiers in the ...
By Ensia
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The developing world is awash in pesticides. Does it have to be?
Herbicides, insecticides and fungicides threaten the environment and human health in many parts of the world. But research is pointing to a better approach. In today’s globalized world, it is not inconceivable that one might drink coffee from Colombia in the morning, munch cashews from Vietnam for lunch and gobble grains from Ethiopia for dinner. That we can enjoy these products is thanks, ...
By Ensia
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Why a Leading Central Coast Vineyard is Transitioning to Organic Production
The transition to organic wine grape growing can be seen as a high-risk process, and growers often wonder if positive results published by academic researchers will actually translate to their bottom lines once implemented in their vineyards. In order to address the concerns about the perceived gap between research and economic success, telling stories which share the lessons learned by people ...
By UAV-IQ, LLC.
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