A gall is an abnormal growth produced by a plant or other host under the influence of another organism. Most galls are caused by fungi or invertebrates. Prominent among the latter are aphids (Aphidae), mites (Acari), psyllids (Psyllidae), gall-midges (Cecidomyiidae), gall-flies (Tephritidae), gall-wasps (Cynipidae) and sawflies (Symphyta), but a wide range of other invertebrates are included. Galls can also be caused by viruses, bacteria and phytoplasmas. The British Plant Gall Society (BPGS), founded in 1985, aims to encourage and co-ordinate the study of plant galls, with particular reference to the British Isles. The society publishes the journal Cecidology. ... [Information of the supplier, modified]
This guide provides photographs and descriptions of biological control (or biocontrol) agents of insect, disease and weed pests in North America. It is also a tutorial on the concept and practice of biological control and integrated pest management (IPM). [Information of the supplier]
The Pest Information Wiki has a literature database where each publication page contains information on which pests, diseases, or weeds the publication deals with. Related information like which research topic, host plants or field location (country or part of a country) the article has been covering can also be included in a publication page. These data can then be retrieved on other pages. For example, a page on a pest can then display lists of literature which are relevant to this pest, like lists sorted by research topics (e.g. Bibliography:Leptinotarsa decemlineata) or lists of distribution records or host plant records (e.g. see the top left in the page Leptinotarsa decemlineata). ... [Information of the supplier]
Biological Control is the human use of beneficial organisms such as predators, parasites, or disease to regulate populations of harmful organisms such as insect pests. Click on topics to the left to find out more about biological control (biocontrol) and beneficial insects. [Information of the supplier]
Charles Valentine Riley pioneered the field of entomology in the United States. The Charles Valentine Riley Collection, part of the National Agricultural Library's (NAL) Special Collections, illustrates Riley's vision to enhance the success of agriculture through new scientific knowledge. The collection of papers and significant artifacts, also tells the story of Riley's love of nature, his keen ability to observe relationships in nature, and his devotion to recording his observations through drawing and writing. The collection complements a number of other significant manuscripts and rare books in Special Collections such as the USDA History Collection, manuscripts of Townend Glover and William Saunders, and early publications by Riley and others which provide historians and researchers a broad picture of the field of entomology in the 1800s. ... [Information of the supplier, modified]
The German Phytomedical Society (Deutsche Phytomedizinische Gesellschaft e.V., DPG) is the largest scientific association in plant production in Germany. The Society is membership-based, and its members are professionals within the entire field of phytomedicine. We define phytomedicine as the science of plant disorders (whether biotic or abiotic), their diagnosis, management and control. Phytomedicine deals with all infectious agents that attack plants, and also covers damage caused to crops by pests, diseases and weeds. Under our definition, we additionally include abiotic disorders such as drought, frost, flooding, poor drainage, nutrient deficiency, salt deposition and other soluble mineral excesses or wind, which may occur naturally or be man-made. Other examples of man-made ‘problems’ include soil compaction, pollution of air and soil, salt applications on roads in urban areas, overuse of pesticides, as well as poor education and poor training of people working with plants. ... [Information of the supplier]
A gall is an abnormal growth produced by the host organism in response to the presence of another living organism . If the host is a plant, we call it a plant gall. The galls can be caused by animals (zoocecidia) and also by plants (phytocecidia) or fungi. The most familiar galls are caused by midges, wasps, mites and fungi, but gall-inducing organisms can be found in many more groups of organisms. This website will show you some of them. ... [Information of the supplier]
Der aufmerksame Naturfreund findet an Pflanzen immer wieder auffällige Wachstumserscheinungen. Häufig handelt es sich hierbei um Gallen (Cecidien), d.h. um typische Wachstumsleistungen der Pflanze auf Grund der Einwirkung eines Gallenerzeugers tierischer oder pflanzlicher Natur. Für Deutschland fehlt eine leicht zugängliche systematische Zusammenstellung von Gallenfotos im Internet zur Information. Diese "Fotogalerie Pflanzengallen" möchte zu einer schnellen Orientierung auf diesem Gebiet beitragen. Insbesondere versteht sie sich als eine zusätzliche Illustration zu den Bestimmungstabellen der Gallen (Zoo- und Phytocecidien) an Pflanzen Mitteleuropas von Dr. Herbert Buhr ... [Information des Anbieters]
This private web site deals with aphids (Aphidina, Sternorrhyncha) and their impact on economic and ornamental plants. Therefore a short introduction, some notes on native predators, the image of diseases and hints on abatement efforts are available. [Editorial staff vifabio]
UTAH PESTS is a portal for learning more about pests (mainly insects) and their beneficial counterparts around the US-state of Utah and Integrated Pest Management (IPM) (minimizing costs and environmental degradation). Information are presented in several ways (e.g. sheets, pictures, videos, slideshows). Furthermore a periodical newsletter is available. ... [Editorial staff vifabio]
