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Batkoa Major
''Batkoa major'' is a naturally occurring fungus that infects insects. Little is known about the pathogen. Found in the soil and belonging to the entomopathogenic fungi, the fungus spores attach to the insects' bodies upon contact. The fungus then enters the insect's body through weak spots in the outer cuticle or exoskeleton. The fungus then forms rhizoids to anchor its dying host to a tree, as spores start to develop on the insect's outer body and short-lived infective spores are ejected. The host insect dies between 4 – 7 days after being infected. Traces of the infective spores are hard to find in the environment. The fungus has been studied as an environmentally-friendly insecticide to control pests such as the invasive spotted lanternfly (''Lycorma delicatula'') in north-eastern North America. Other known targets include the pine beauty moth and the potato leafhopper. See also * ''Beauveria bassiana ''Beauveria bassiana'' is a fungus that grows naturally in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spores
In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa. Bacterial spores are not part of a sexual cycle, but are resistant structures used for survival under unfavourable conditions. Myxozoan spores release amoeboid infectious germs ("amoebulae") into their hosts for parasitic infection, but also reproduce within the hosts through the pairing of two nuclei within the plasmodium, which develops from the amoebula. In plants, spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Under favourable conditions the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes. Two gametes fuse to form a zygote which develops into a new spor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungal Pest Control Agents
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''true fungi' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Articles Needing Expert Attention
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beauveria Bassiana
''Beauveria bassiana'' is a fungus that grows naturally in soils throughout the world and acts as a parasite on various arthropod species, causing white muscardine disease; it thus belongs to the entomopathogenic fungi. It is used as a biological insecticide to control a number of pests, including termites, thrips, whiteflies, aphids and various beetles. Its use in the control of bedbugs and malaria-transmitting mosquitos is under investigation.Donald G. McNeil Jr.Fungus Fatal to Mosquito May Aid Global War on Malaria ''The New York Times'', 10 June 2005 Discovery and name The species is named after the Italian entomologist Agostino Bassi, who discovered it in 1835 as the cause of the muscardine disease which then led to carriers transmitting it by airborne means, and later the same year it was named ''Botrytis bassiana'' by Giuseppe Gabriel Balsamo-Crivelli. In 1911 Jean Beauverie did further study and the next year Jean Paul Vuillemin made it the type species of his new ''B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Empoasca Fabae
''Empoasca fabae'' belongs to family Cicadellidae and genus Empoasca within order Hemiptera.”Lamp, W., D., Miranda, L., Culler & Alexander, L. (2011) “Host Suitability and Gas Exchange Response of Grapevines to Potato Leafhopper (Hemiptera: Cicadellidae)”. ''Journal of Economic Entomology'' 104 (4): 1316–1322. They are more commonly referred to as the potato leafhopper. In North America they are a serious agricultural pest (organism), pest.”Delay, B., P, Mamidala, A, Wijeratne., S, Wijerante, O, Mittapalli, J, Wang., and Lamp, W. (2012). “Transcriptome analysis of the salivary glands of potato leafhopper, Empoasca fabae”. ''Journal of Insect Physiology'' 58 (12): 1626–1634. Every year millions of dollars are lost from reduced crop yields and on pest management. Crops that are impacted the most are potatoes, clover, beans, apples and alfalfa."Bland R.G., Jaques H.E. (2010). How to Know the Insects 3rd Edition. Waveland Press Inc. p. 163. Appearance Adults have pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pine Beauty
The pine beauty (''Panolis flammea'') is a moth of the family Noctuidae. It is a common species of pine woods in Europe. The distribution area extends from the west of Catalonia over southern France, central Italy, central Europe to western Siberia, the Caucasus and Asia Minor. In the north it extends to the Arctic Circle, in the south it is found on the northern Iberian Peninsula and southern Italy (including Sicily and Sardinia). The forewings are typically rich orange brown, but sometimes are dark grey, with two large pale stigmata and fine streaks along the termen. The hindwings are brown or blackish. Technical description and variation The wingspan is 32–40 mm. Forewing orange rufous with some ochreous admixture; the veins dotted grey and white; the inner and outer lines deeper rufous, conversely edged with white, and dentate lunulate; submarginal line pale, preceded by a dentate rufous shade; the terminal area often paler; stigmata large, irregular; the clavi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spotted Lanternfly
The spotted lanternfly (''Lycorma delicatula'') is a planthopper indigenous to parts of China. It has spread invasively to Japan, South Korea, and the United States. Its preferred host is tree of heaven (''Ailanthus altissima''), but it infests economically significant plants including soybean, grapes, stone fruits, and ''Malus'' spp. In its native habitat, ''L. delicatula'' populations are kept in check by parasitic wasps. The spotted lanternfly's life cycle is often centered on its preferred host ''Ailanthus altissima'' but ''L. delicatula'' can associate with more than 173 plants. Early life stages (instars) of the spotted lanternfly are characterized by spotted black and white nymphs that develop a red pigmentation and wings as they mature. Early life instars display a large host range that narrows with maturation. Adult spotted lanternflies display a black head, grey wings, and red hind wings. Adults do not display any specialized feeding associations with herba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insecticide
Insecticides are substances used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively. Insecticides are used in agriculture, medicine, industry and by consumers. Insecticides are claimed to be a major factor behind the increase in the 20th-century's agricultural productivity. Nearly all insecticides have the potential to significantly alter ecosystems; many are toxic to humans and/or animals; some become concentrated as they spread along the food chain. Insecticides can be classified into two major groups: systemic insecticides, which have residual or long term activity; and contact insecticides, which have no residual activity. The mode of action describes how the pesticide kills or inactivates a pest. It provides another way of classifying insecticides. Mode of action can be important in understanding whether an insecticide will be toxic to unrelated species, such as fish, birds and mammals. Insecticides may be repellent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizoids
Rhizoids are protuberances that extend from the lower epidermal cells of bryophytes and algae. They are similar in structure and function to the root hairs of vascular land plants. Similar structures are formed by some fungi. Rhizoids may be unicellular or multicellular. Evolutionary development Plants originated in aquatic environments and gradually migrated to land during their long course of evolution. In water or near it, plants could absorb water from their surroundings, with no need for any special absorbing organ or tissue. Additionally, in the primitive states of plant development, tissue differentiation and division of labor was minimal, thus specialized water absorbing tissue was not required. The development of specialized tissues to absorb water efficiently and anchor themselves to the ground enabled the spread of plants to the land. Description Rhizoids absorb water mainly by capillary action, in which water moves up between threads of rhizoids and not through ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomophthoromycota
Entomophthoromycota is a division of kingdom fungi. In 2007, it was placed at the taxonomic rank of subphylum in the most recent revision of the entire fungus kingdom. In 2012, it was raised to the rank of phylum as "Entomophthoromycota" in a scientific paper by Richard A. Humber 2012. Divided into three classes and six families (Ancylistaceae, Basidiobolaceae, Completoriaceae, Entomophthoraceae, Meristacraceae, and Neozygitaceae), it contains over 250 species that are mostly arthropod pathogens or soil- and litter-borne saprobes. Taxonomy Circumscribed by mycologist Richard Humber in 2012, it contains species formerly classified in the division Zygomycota. Humber's reorganization divides the division into three classes while retaining the previously defined family structure: Division Entomophthoromycota Humber 2012 [Entomophthoromycotina Humber 2007] :Class Basidiobolomycetes Humber 2012 [Bolomycetes Cavalier-Smith 1998; Bolomycetidae Cavalier-Smith 2012; Basidiobolomycota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomopathogenic Fungi
An entomopathogenic fungus is a fungus that can kill or seriously disable insects. Typical life cycle These fungi usually attach to the external body surface of insects in the form of microscopic spores (usually asexual, mitosporic spores also called conidia). Under the right conditions of temperature and (usually high) humidity, these spores germinate, grow as hyphae and colonize the insect's cuticle; which they bore through by way of enzymatic hydrolysis, reaching the insects' body cavity (hemocoel). Then, the fungal cells proliferate in the host body cavity, usually as walled hyphae or in the form of wall-less protoplasts (depending on the fungus involved). After some time the insect is usually killed (sometimes by fungal toxins), and new propagules (spores) are formed in or on the insect if environmental conditions are again right. High humidity is usually required for sporulation. Groups The entomopathogenic fungi include taxa from several of the main fungal groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
