• Aphis
  • The aphid, Aphis gossypii Glover, is found in the majority of cucumber producing areas in China and is a serious pest, often causing severe yield loss and reduced quality in cucumber production. (frontiersin.org)
  • Corn
  • A maize inbred exhibits resistance against western corn rootwoorm, Diabrotica virgifera virgifera. (psu.edu)
  • Researchers at North Carolina State University have found a specific gene in corn that appears to be associated with resistance to two and possibly three different plant leaf diseases. (phys.org)
  • In the US, by 2014, 94% of the planted area of soybeans, 96% of cotton and 93% of corn were genetically modified varieties. (wikipedia.org)
  • This has led to their use as insecticides, and more recently to genetically modified crops using Bt genes, such as Bt corn. (wikipedia.org)
  • populations
  • In addition, farmers should closely monitor aphid populations in their fields and spray when populations reach the economic threshold level, approximately 250 aphids per plant. (innovations-report.com)
  • Plants in both natural and cultivated populations carry inherent disease resistance, but there are numerous examples of devastating plant disease impacts (see Irish potato famine, chestnut blight), as well as recurrent severe plant diseases (see rice blast, soybean cyst nematode, citrus canker). (wikipedia.org)
  • insecticides
  • Ultimately, this new tool will help reduce production costs by reducing the number of foliar insecticides being applied to soybean. (blogspot.com)
  • crops
  • Crops are increasingly grown in monoculture, meaning that if, as in the historic Irish Potato Famine, a single disease overcomes a variety's resistance, it may destroy an entire harvest, or as in the case of the 'Gros Michel' banana, may cause the commercial extinction of an entire variety. (wikipedia.org)
  • The key areas of controversy related to genetically modified food (GM food or GMO food) are whether such food should be labeled, the role of government regulators, the objectivity of scientific research and publication, the effect of genetically modified crops on health and the environment, the effect on pesticide resistance, the impact of such crops for farmers, and the role of the crops in feeding the world population. (wikipedia.org)
  • plants
  • They can feed on other plants, but they only readily reproduce during the summer months on soybean. (innovations-report.com)
  • Reduction in photosynthetic capacity of soybean may occur before plants begin to display symptoms of injury. (wikipedia.org)
  • During this stage, small colonies of soybean aphids appear patchy, occurring on single plants scattered throughout a field. (wikipedia.org)
  • In these early colonies, soybean aphids are typically grouped on tender, young leaves of soybean plants. (wikipedia.org)
  • She previously was director of bioinformatics at the Clemson University Genomics Institute, a research and training facility focusing on the discovery and analysis of important genes from plants, animals and microbes. (bio-medicine.org)
  • Researchers at Umeå University and Wageningen University have discovered how plants can defend themselves against aphids. (phys.org)
  • For example, golden rice contains three genes that allow plants to produce compounds that are converted to vitamin A in the human body. (wikipedia.org)
  • Disease control is achieved by use of plants that have been bred for good resistance to many diseases, and by plant cultivation approaches such as crop rotation, use of pathogen-free seed, appropriate planting date and plant density, control of field moisture, and pesticide use. (wikipedia.org)
  • temperate
  • Typically wooly aphids in sub temperate climates precede and are an indicator of various infections, including Powdery mildew. (wikipedia.org)
  • Aphids are distributed worldwide, but are most common in temperate zones. (wikipedia.org)
  • insecticidal
  • Insecticidal seed treatments and host plant resistance are two commercially available management tools. (iastate.edu)
  • Upon sporulation, B. thuringiensis forms crystals of proteinaceous insecticidal δ-endotoxins (called crystal proteins or Cry proteins), which are encoded by cry genes. (wikipedia.org)
  • genome
  • The research goal is to establish the peach as a model tree genome for identifying and understanding genes that are critical for deciduous tree growth and development. (bio-medicine.org)
  • This publication has formed the basis of the recent resurgence and discussion in holobionts and hologenomes, namely by equating interactions between hosts and microbes as part of a conceptual continuum to interactions between genes in the same genome. (wikipedia.org)
  • 2000
  • Hartman said aphids are thought to have entered the United States from China in 2000. (sj-r.com)
  • Feeding
  • Damage to a soybean plant during this initial stage is a result of stylet-feeding and can include curling and stunting of leaves and twigs, physiological delays, and underdevelopment of root tissue. (wikipedia.org)
  • They recorded aphid behavior on video, and identified a plant protein that keeps aphids from feeding. (phys.org)
  • microbes
  • At the CSH Symposium and earlier, the unsettling number and diversity of microbes that were being discovered through the powerful tool of PCR-amplification of 16S ribosomal RNA genes was exciting, but confusing interpretations in diverse studies. (wikipedia.org)