phenacoccus manihoti cabi

phenacoccus manihoti cabi

Cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) is an invasive pest native to South America. Niche models, such as CLIMEX, are useful tools to indicate where and when such threats may extend, and can assist with planning for biosecurity and the management of pest invasions. 1. Phenacoccus madeirensis has a grey oval body covered by thin, white, mealy wax, with red legs and dark dorso-submedial bare spots on intersegmental areas of the thorax and abdomen. Areas in Argentina, Bolivia, Brazil and Paraguay were searched for the cassava mealybug, Phenacoccus manihoti. Hosts. Asia, Africa, South America. Damage intensity is influenced by cassava mealybug population 15% and other factors 85%. J Appl Ecol 25:921–940 CrossRef Google Scholar Phenacoccus manihoti (cassava mealybug), an invasive pest of South American origin, devastated cassava production in equatorial Africa following its accidental introduction in the 1980s (Neuenschwander 2003, Williams & Granara de Willink 1992). Phenacoccus manihoti, known as cassava mealybug, originated from central South America (Neuenschwander 2003) and it is infamous for the devastation it caused to cassava when it was accidentally introduced to equatorial Africa in the 1980s (Williams & Granara de Willink 1992). On cassava and relatives. ISBN: 0-85199-639-6. Causes loss of leaves (in Africa, cassava used as leafy vegetable), low root yields, and poor cuttings for next crop. The effectiveness of the exotic South American hymenopterous parasitoid Epidinocarsis lopezi in controlling Phenacoccus manihoti, which was accidentally introduced from South America to Africa in the early 1970s, was assessed using emergence samples. Cassava is an important crop to many local smallholder farmers in Thailand, so this pest outbreak had significant negative impacts on farmers’ incomes and their rural livelihoods. It is grown by many low income farmers and provides both food security and income. Jun. Sustained biological control of the cassava mealybug Phenacoccus manihoti (Hom. Phenacoccus parvus Morrison Dec. 1990 518. P. manihoti was accidentally introduced into Africa in the 1970s, and became a major pest in most cassava growing regions causing yield losses as high as 80%. The impact of Phenacoccus manihoti on growth and tuber yield of cassava, and the results of its biological control by the exotic parasitoid Epidinocarsis lopezi were investigated in a survey of 60 farmers' fields in Ghana and Ivory Coast over an area of 180 000 km2 of the savanna and forest ecosystems. In 1973, P. manihoti was reported as an introduced arthropod species on cassava in Congo (Sylvestre, 1973; Matile-Ferrero, 1978) and Congo Democratic Republic (Hahn and Williams, 1973).Within a few years after these first reports, the insect became the major cassava pest and spread rapidly through most of the African cassava belt. The mealybug was located in the Paraguay River basin in the Santa Cruz de la Sierra area of eastern Bolivia, the Mato Grosso do Sul state in south-western Brazil and in Paraguay east of the Paraguay River. Spread trajectories of Phenacoccus manihoti in Thailand, during its 2008–2011 invasion. To support management decisions, this article reports recent distribution records, and estimates the climatic suitability for its regional spread using a CLIMEX … 18 University of Goettingen, Goettingen, Germany. Phenacoccus madeirensis Guangdong, China Open field Bidens pilosa Aug. 2012 15 Phenacoccus manihoti Tây Ninh, Vietnam Indoor rearing M. esculenta Nov. 2013 16 Phenacoccus solani Beijing, China Greenhouse Eupatorium adenophorum Jan. 2014 17 Phenacoccus solenopsis Hainan, China Open field H. rosa-sinensis Nov. 2012 18 Kutu putih bukan merupakan hama asli dari Indonesia. Tanzania Share . Symptoms & Life Cycle Phenacoccus manihoti Matile-Ferrero in Africa (CABI, 2005). Biological Control of the Cassava Mealybug, Phenacoccus manihoti, by the Exotic Parasitoid Epidinocarsis lopezi in Africa February 1988 Philosophical Transactions of … Phenacoccus manihoti. They are tiny insects, less than ½ cm in size. Journal of Biological Control, 26 (1): 18-22, 2012. The cassava mealybug is a clear and present threat to the food security and livelihoods of some of the world's most impoverished citizens. Twenty-nine variables associated with plant growth, agronomic and environmental … Laboratory experiments have indicated that its killing power at higher temperatures is 2-3 times higher than the percentage mummy formation suggests. Distribution. Salah satu serangga yang berperan sebagai hama penting dalam kegiatan budi daya ubi kayu (Manihot esculenta Crantz) adalah kutu putih Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) atau mealybug. Morfologi dan siklus hidup Phenacoccus manihoti menurut CABI, 2013. Southeast Asia, not Oceania. 2009 721* Phoracantha semipunctata (Fabricius) rev. Telur berbentuk lonjong berwarna kuning keemasan tertutup ovisacs wol berwarna putih panjang 0,30 – 0,75mm, lebar 0,15 –0,30 mm. The impact of a biological control program against Phenacoccus manihoti on cassava was assessed by surveys carried out in Zambia twice yearly from 1986 to 1990. CABI Publishing in association with the ACP-EU Technical Centre for Agricultural and Rural Cooperation (CTA) and the Swiss Agency for Development and Cooperation (SDC). ... ©CAB International. Pathway Cause / Pathway Vector datasheets. Maconellicoccus) Dec. 2007 699* Phenacoccus madeirensis Green Jun. Phenacoccus manihoti. The eggs may hatch as soon as they are laid, giving the impression that young are born rather than hatched. Only solitary parasitism was permitted. Qualitative estimates of infestation pressure are reflected in the color-coding, with green-colored dots (or the associated contour-lines) representing absence of P. manihoti and red-colored dots or contour-lines showing severe field-level infestation. Cassava mealybug Phenacoccus manihoti. Summary. Cassava, and wild relative, Manihot glaziovii (tree cassava), and some weeds. Phenacoccus manihoti. The Madeira mealybug Phenacoccus madeirensis Green (Hemiptera: Pseudococcidae) is a highly invasive pest species and is spreading and invading new areas globally. Epidinocarsis lopezi has proved to be an efficient biological control agent of the cassava pest Phenacoccus manihoti despite apparently low rates of parasitism. Kutu putih berasal dari kawasan Amerika Selatan. They are soft- bodied, wingless, and covered by white wax and hairs. The life cycle of Epidinocarsis lopezi, a parasitoid of the cassava pest Phenacoccus manihoti, was studied at 26±1°C, 80±10% RH and LH 12:12. 17 CABI, Wallingford, United Kingdom. It has been reported from most West African countries, but this is the first published report from Mali. Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae), one of the most serious pests of cassava worldwide, has recently reached Asia, raising significant concern over its potential spread throughout the region. Gutierrez AP, Neuenschwander P, Schulthess F, Herren HR, Baumgaertner JU, Wermelinger B, Loehr B, Ellis CK (1988) Analysis of biological control of cassava pests in Africa. 2017). Phenacoccus manihoti poses a threat to the food security and livelihood of the poor farmers (Yonow et al. 1993 466. This pest attacked African cassava crops, causing crop losses of up to 80%. From 1984 onward, the introduced parasitoid Epidinocarsis lopezi and some introduced coccinellid predators were released on 54 occasions along the spreading front of the infestation. Tanzania Share . Jun. Introduction. ... CABI … II. It is a generalist in diet and habitat and has been found on more than 130 genera of host plants from 51 families (ScaleNet, 2016).It is considered one of the most economically significant pests of many … The mean durations of the developmental stages were: embryogenesis 42 h; 1st instar 15 h; 2nd instar 34 h; 3rd instar 31 h; 4th instar 43 h; pre-nymphal stage 91 h; nymphal stage 145 h. It has not yet been recorded in the Pacific islands, including Papua New Guinea. The cassava mealybug is whitish, soft-bodied and only about 1 to 3 mm long. Phenacoccus hirsutus Green (see. Cassava mealybug (Phenacoccus manihoti ) Eggs are oblong, golden-yellow, and enclosed in woolly ovisacs located at the posterior end of the adult females. Extremely important in Africa until effective biocontrol. Share this with Facebook: Twitter: Email: Recognize the problem Cassava mealybug (Vidung’ata in Swahili) is a pest of cassava which can reduce yields by half. 2000 607* Phenacoccus manihoti Matile-Ferrero rev. Phenacoccus manihoti. Hammond, W. N. O., and P. Neuenschwander 1990. One of the advantages of the relational nature of the database of datasheets in the ISC is the way in which it enables lists to be created of datasheets associated with other datasheets. Lebar 0,15 –0,30 mm higher temperatures is 2-3 times higher than the percentage formation... 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