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Locusta Migratoria Manilensis
''Locusta migratoria manilensis'', commonly known as the Oriental migratory locust, is a subspecies of the migratory locust (''L. migratoria'') in the family Acrididae. It is sufficiently different in size and structure from the African migratory locust to be considered a distinct subspecies of the migratory locust. It is found in southeastern Asia and is an important agricultural pest in the region. It is normally a solitary insect but when conditions are suitable, it enters into a gregarious phase when the young form into bands which move together and the adults into swarms. Although outbreaks may have recently been fewer in number and size because of changes in agricultural practices and better locust detection, the insects remain active as crop pests and the potential for outbreaks is still present. Description The Oriental migratory locust is slightly smaller than the African migratory locust. It can exist in two phases, solitary and gregarious. The solitary adults are ei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Meyen
Franz Julius Ferdinand Meyen (28 June 1804 – 2 September 1840) was a Prussian physician and botanist. Meyen was born in Tilsit, East Prussia. In 1830 he wrote ''Phytotomie'', the first major study of plant anatomy. Between 1830 and 1832, he took part in an expedition to South America on board the ''Prinzess Luise'', visiting Peru and Bolivia, describing species then new to science such as the Humboldt penguin. From 1823 to 1826, he studied medicine at the University of Berlin, followed by service as a military surgeon at the Charité in Berlin. In 1834 he became an associate professor of botany in Berlin. With Heinrich Friedrich Link, he was co-editor of the journal ''Jahresberichte über die Arbeiten für physiologische Botanik'' (1837–1839).Max Planck Institute for the History of Science, Berlin< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice
Rice is the seed of the grass species '' Oryza sativa'' (Asian rice) or less commonly ''Oryza glaberrima'' (African rice). The name wild rice is usually used for species of the genera '' Zizania'' and '' Porteresia'', both wild and domesticated, although the term may also be used for primitive or uncultivated varieties of '' Oryza''. As a cereal grain, domesticated rice is the most widely consumed staple food for over half of the world's human population,Abstract, "Rice feeds more than half the world's population." especially in Asia and Africa. It is the agricultural commodity with the third-highest worldwide production, after sugarcane and maize. Since sizable portions of sugarcane and maize crops are used for purposes other than human consumption, rice is the most important food crop with regard to human nutrition and caloric intake, providing more than one-fifth of the calories consumed worldwide by humans. There are many varieties of rice and culinary preferences tend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locusts
Locusts (derived from the Vulgar Latin ''locusta'', meaning grasshopper) are various species of short-horned grasshoppers in the family Acrididae that have a swarming phase. These insects are usually solitary, but under certain circumstances they become more abundant and change their behaviour and habits, becoming gregarious. No taxonomic distinction is made between locust and grasshopper species; the basis for the definition is whether a species forms swarms under intermittently suitable conditions; this has evolved independently in multiple lineages, comprising at least 18 genera in 5 different acridid subfamilies. Normally, these grasshoppers are innocuous, their numbers are low, and they do not pose a major economic threat to agriculture. However, under suitable conditions of drought followed by rapid vegetation growth, serotonin in their brains triggers dramatic changes: they start to breed abundantly, becoming gregarious and nomadic (loosely described as migratory) w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg (biology)
An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches. Most arthropods such as insects, vertebrates (excluding live-bearing mammals), and mollusks lay eggs, although some, such as scorpions, do not. Reptile eggs, bird eggs, and monotreme eggs are laid out of water and are surrounded by a protective shell, either flexible or inflexible. Eggs laid on land or in nests are usually kept within a warm and favorable temperature range while the embryo grows. When the embryo is adequately developed it hatches, i.e., breaks out of the egg's shell. Some embryos have a temporary egg tooth they use to crack, pip, or break the eggshell or covering. The largest recorded egg is from a whale shark and was in size. Whale shark eggs typically hatch within the mother. At and up to , the ost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wildfire
A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a bushfire( in Australia), desert fire, grass fire, hill fire, peat fire, prairie fire, vegetation fire, or veld fire. Some natural forest ecosystems depend on wildfire. Wildfires are distinct from beneficial human usage of wildland fire, called controlled burning, although controlled burns can turn into wildfires. Fossil charcoal indicates that wildfires began soon after the appearance of terrestrial plants approximately 419 million years ago during the Silurian period. Earth's carbon-rich vegetation, seasonally dry climates, atmospheric oxygen, and widespread lightning and volcanic ignitions create favorable conditions for fires. The occurrence of wildfires throughout the history of terrestrial life invites conjecture that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarangani Bay
Sarangani Bay is a bay located on the southern tip of Mindanao in the Philippines. It opens up to the Celebes Sea on the Pacific Ocean. General Santos City General Santos, officially the City of General Santos,; hil, Dakbanwa sang Heneral Santos; Maguindanao: ''Ingud nu Heneral Santos''; Blaan: ''Banwe Dadiangas''; Tboli: ''Benwu Dadiangas''; Filipino: ''Lungsod ng Heneral Santos'' and abbre ..., one of the Philippines most important cities and ports, is located at the head of the bay, making the bay one of the busiest and often the site of shipping accidents. The province of Sarangani, created in 1992, is named after the bay. Gallery Aerial shot of General Santos City Port in South Cotabato.jpg, An aerial view of the bay showing the port of General Santos File:Sarangani Bay protected seascape 3.jpg, Sarangani Bay is one of the protected seascapes in the Philippines. File:Sarangani bay protected seascape 2.jpg, Another view of the bay References Bays of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mindanao
Mindanao ( ) ( Jawi: مينداناو) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of the same name that also includes its adjacent islands, notably the Sulu Archipelago. According to the 2020 census, Mindanao has a population of 26,252,442 people, while the entire island group has an estimated population of 27,021,036 according to the 2021 census. Mindanao is divided into six administrative regions: the Zamboanga Peninsula, Northern Mindanao, the Caraga region, the Davao region, Soccsksargen, and the autonomous region of Bangsamoro. According to the 2020 census, Davao City is the most populous city on the island, with 1,776,949 people, followed by Zamboanga City (pop. 977,234), Cagayan de Oro (pop. 728,402), General Santos (pop. 697,315), Butuan (pop. 372,910), Iligan (pop. 363,115) and Cotabato City (pop. 325,079). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metarhizium Acridum
''Metarhizium acridum'' is the new name given to a group of fungal isolates that are known to be virulent and specific to the Acrididea (grasshoppers). Previously, this species has had variety status in ''Metarhizium anisopliae'' (var. ''acridum'' ); before that, reference had been made to '' M. flavoviride'' or ''Metarhizium sp.'' describing an "apparently homologous and distinctive group" of isolates that were most virulent against ''Schistocerca gregaria'' (desert locust) in early screening bioassays. Biology ''M. acridum'' almost exclusively infects grasshoppers in the order Orthoptera. ''M. acridum'' infects only grasshoppers and locusts. Researchers believe that this has to do with the ''Mest1'' gene which is not present in ''M. acridum''. By taking a strain of '' M. robertsii'' that has a nonfunctioning ''Mest1 gene'', researchers found that the mutant was only able to infect ''Melanoplus femurrubrum'', which is consistent with ''M. acridum'' activity. This allows t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Pest Control
Biological control or biocontrol is a method of controlling pests, such as insects, mites, weeds, and plant diseases, using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also involves an active human management role. It can be an important component of integrated pest management (IPM) programs. There are three basic strategies for biological pest control: classical (importation), where a natural enemy of a pest is introduced in the hope of achieving control; inductive (augmentation), in which a large population of natural enemies are administered for quick pest control; and inoculative (conservation), in which measures are taken to maintain natural enemies through regular reestablishment. Natural enemies of insect pests, also known as biological control agents, include predators, parasitoids, pathogens, and competitors. Biological control agents of plant diseases are most often referred to as antagonists. Biolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow River
The Yellow River or Huang He (Chinese: , Mandarin: ''Huáng hé'' ) is the second-longest river in China, after the Yangtze River, and the sixth-longest river system in the world at the estimated length of . Originating in the Bayan Har Mountains in Qinghai province of Western China, it flows through nine provinces, and it empties into the Bohai Sea near the city of Dongying in Shandong province. The Yellow River basin has an east–west extent of about and a north–south extent of about . Its total drainage area is about . The Yellow River's basin was the birthplace of ancient Chinese, and, by extension, Far Eastern civilization, and it was the most prosperous region in early Chinese history. There are frequent devastating floods and course changes produced by the continual elevation of the river bed, sometimes above the level of its surrounding farm fields. Etymology Early Chinese literature including the '' Yu Gong'' or ''Tribute of Yu'' dating to the Warrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maize
Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. The leafy stalk of the plant produces pollen inflorescences (or "tassels") and separate ovuliferous inflorescences called ears that when fertilized yield kernels or seeds, which are fruits. The term ''maize'' is preferred in formal, scientific, and international usage as a common name because it refers specifically to this one grain, unlike ''corn'', which has a complex variety of meanings that vary by context and geographic region. Maize has become a staple food in many parts of the world, with the total production of maize surpassing that of wheat or rice. In addition to being consumed directly by humans (often in the form of masa), maize is also used for corn ethanol, animal feed and other maize products, such as corn starch and corn sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bengkulu
Bengkulu is a province of Indonesia. It is located on the southwest coast of Sumatra. It was formed on 18 November 1968 by separating out the former Bencoolen Residency area from the province of South Sumatra under Law No. 9 of 1967 and was finalized by Government Regulation No. 20 of 1968. Spread over 19,813 km2, it is bordered by the provinces of West Sumatra to the north, Jambi to the northeast, Lampung to the southeast, and South Sumatra to the east, and by the Indian Ocean to the northwest, south, southwest, and west. Bengkulu is the 25th largest province by area; it is divided into nine regencies and the city of Bengkulu, the capital and the only independent city. Bengkulu is also the 26th largest province by population in Indonesia, with 1,715,518 inhabitants at the 2010 Census and 2,010,670 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2021 was 2,032,941.Badan Pusat Statistik, Jakarta, 2022. According to a release by Bad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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