About this article publisher scienceweb publishing j. It is a contact and stomach synthetic pyrethroid insecticide and a fastacting neurotoxin in insects 10. Farmers perception on the importance of variegated grasshopper. We recommend downloading the newest version of flash here, but we support all versions 10 and above. Article pdf available january 2012 with 1,989 reads. An zonocerus variegatus in nahilalakip ha genus nga zonocerus, ngan familia nga pyrgomorphidae. Pdf the grasshopper zonocerus variegatus has been consumed for. Pyrgomorphidae in southwestern nigeria in relation to the wet and dry seasons. Pyrgomorphidae is a pest of the staple food crop cassava in southern nigeria page e t al. Unlimited viewing of the articlechapter pdf and any associated supplements and figures. Effects of moringa oleifera leaf extract on morphological. The variegated grasshopper, zonocerus variegatus moves from one place to another in the field when disturbed and in search food and mates. Pyrgomorphidae is known as an agricultural pest in west and central africa. Control of the variegated grasshopper zonocerus variegatus.
Le criquet puant, zonocerus variegatus, chiffaud j. Microbial control of caged population of zonocerus. The variegated grasshopper zonocerus variegatus, like other insects, harbors microorganisms in its alimentary canal system. Dispersion activities in insects depend on many factors, including diet. Nymphal period and adulthood cover approximately 7 months. The dissection of the variegated grasshopper youdeowei, a. Development took 12 months longer in small cages than in a large cage, probably because the nymphs normally require a fairly large area for activity in nature. Other affected crops include cocoa, castor, cashew, coffee, cotton and sweet potato. Abstract mean body weights of male and female zonocerus variegatus varied with location.
Both species are significant agricultural pests, especially for african smallholder farmers. Continuing to use this website means you agree to our use of cookies. We do not use these to store personal information about you. Pathogenicity of entomopathogenic entomophthora grylli on. General information about zonocerus variegatus zoncva this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Observations on aggregation, migration, and feeding habits of. Glutathione transferase gst was purified from the hindgut of grasshopper zonocerus variegatus a polyphagous insect.
From the 1950s, increased agriculture has resulted in forest clearings for cassava, maize and leafy. Notes on the variegated grasshopper, zonocerus variegatus, l. Zonocerus is a genus of grasshoppers in the family pyrgomorphidae and the tribe phymateini. Structure of the repellent gland of zonocerus variegatus. The roles of food plants on the dispersion activities of the. Pyrrolizidine alkaloids sequestered and stored by the aposematic grasshopper, zonocerus variegatus. Glutathione stransferases gsts have been recognized as important metabolic detoxifying enzymes in many phytophagous insects. The biology and control of the grasshopper zonocerus. Studies on glutathione transferase from grasshopper. Chemical compounds were extracted with petroleum ether from the cuticular abdominal glands of grasshopper zonocerus variegatus l.
Zonocerus variegatus zoncvaoverview eppo global database. Therefore, we carried out an initial study on the induction and kinetics of gst in z. The potentials of zonocerus variegatus insects are widespread on earth demirel and cranshaw, 2006 and adapt to all manner of climate, weather and altitude conditions idris et al. Effects of moringa oleifera leaf extract on morphological and. In this study, we investigated the occurrence and distribution of microflora in the gut regions of z. Zonocerus variegatus is a species of insects with observations. The roles of food plants on the dispersion activities of. Featured picture candidatesvariegated grasshopper, where it ended up at 40.
The variegated grasshopper zonocerus variegatus linne, 1758. Pdf grasshoppers zonocerus variegatus as a potential. Assessment of nutritional quality and mineral composition of dried edible zonocerus variegatus grasshopper i sani, m haruna, a abdulhamid, aa warra, f bello, and im fakai. This was attenuated by the coadministration of the p. Introduction the grasshopper zonocetus variegatus l. An account is given of observations on the lifecycle of zonocerus variegatus, l. Nutritional value assessment of variegated grasshopper. Studies on glutathione transferase from grasshopper zonocerus variegatus author links. Assessment of nutritional quality and mineral composition. May 20, 2014 the grasshopper, zonocerus variegatus linn.
Activity of digestive enzymes in zonocerus variegatus orthoptera. The effect of diets on the tissues femoral and thoracic muscles responsible for dispersion in z. A study of the local population of the variegated grasshopper, z. In the male, the mean body weight vary significantly between owerri specimens 0. View the article pdf and any associated supplements and figures for a period of 48 hours. On the origin of the wetseason form of zonocerus variegatus l. The role of the grasshopper zonocerus variegatus as vector. The variegated grasshopperzonocerus variegatusare gregarious and always move in groups in search of linnaeus, 1758, is a polyphagous insect pest of food food while stages 46 larvae and adults are solitaries 6. Bionomics of the variegated grasshopper zonocerus variegatus in.
However, the contribution of gst to insecticide resistance in zonocerus variegatus l. Later instars will eat cassava, especially when deprived of food for some time, but the adults progressively lose weight when restricted to feeding on. Factors affecting the mortality of the grasshopper, zonocerus variegatus, in southern nigeria. The attractive properties of chromolena odorata can be used to trap the grasshopper which can then be treated with either an insecticide or an entomopathogenic fungus. Oviposition behaviour of the grasshopper zonocerus variegatus. Pdf composition and food properties of the variegated. The biology and control of the grasshopper zonocerus variegatus. The nutritive value of various stages of development of zonocerus variegatus l.
Occurrence and distribution of microflora in the gut. The highresolution crystal structure of the flavindependent monooxygenase fmo from the african locust zonocerus variegatus is presented and the kinetics of structurebased protein variants are discussed. However, its importance in the agricultural production system in cameroon has not been investigated. Therefore, the main objective of the study was to elucidate the role of the variegated grasshopper, zonocerus variegatus, an important pest of cassava, in the dissemination and transmission of bacterial blight. Pyrrolizidine alkaloids sequestered and stored by the. The role of herbivore insects as potential vectors of the disease has never been studied in detail. Studies on glutathione transferase from grasshopper zonocerus. The variegated grasshopper, zonocerus variegatus, had a high protein content, 54.
An zonocerus variegatus in uska species han orthoptera nga syahan ginhulagway ni linnaeus hadton 1758. It could make a useful contribution to improving protein nutrition. Therefore, the main objective of the study was to elucidate the role of the variegated grasshopper, zonocerus variegatus, an important pest of. Zonocerus variegatus is the main grasshopper pest of crops, notably cassava, in the humid lowland forest and savannas of west and central africa. Department of biochemistry, kebbi state university of science and technology, aliero, p. The highest crude protein content was recorded by the adult stage though was not significantly p 0. The temperature optima for germination, radial hyphal extension rate and sporulation were determined for two isolates of metarhizium flavoviride from acridoid hosts. Files are available under licenses specified on their description page.
Occurrence and distribution of microflora in the gut regions. Bionomics of the variegated grasshopper zonocerus variegatus. Preliminary evaluation of the nutritive value of the. Field and laboratory studies at ibadan, nigeria, showed that the young nymphs of zonocerus variegatus l. Dissfction activities in the gut of the variegated grasshopper zonocerus variegatus l activites osidasiques du tube digestif du criquet puant, zonocerus variegatus l. Original variegated grasshopper zonocerus variegatus, female, bobiri forest, ghana. To manage the insects in the interest of food security, they should be made better available throughout the year by inventing organized and controlled production of the. A preliminary feeding trial was conducted to evaluate the nutritive value of adult variegated grasshopper zonocerus variegatus meal vgm as a replacement for fish meal in the diets of clarias gariepinus fingerlings. This page was last edited on 6 december 2018, at 10.
Notes on the variegated grasshopper, zonocerus variegatus. Links zonocerus variegatus in the orthoptera species file database, accessed on 281020. The variegated grasshopper, zonocerus variegatus contains a protein with good amino acid composition. Insecticidal activities of piper guineense schum and thonn and capsicum species on the. This acridid is widespread in nigeria and in french west africa cf. Pyrgomorphidae gut homogenates during postembryonic development volume 31 issue. Pdf structure of the repellent gland of zonocerus variegatus. Fill out the form below to receive a free trial or learn more about access. Secondary metabolites of the cuticular abdominal glands of. Occurrence of the grasshopper pest zonocerus variegatus l. Host the variegated grasshopper is a pest of many crops in the seedling stage, especially cassava and finger millet. Abstract 1 thermal behaviour of the variegated grasshopper, zonocerus variegatus, was in vestigated in the humid tropical zone of southern benin, west africa.
Piper guineense has insecticidal activity against zonocerus variegatus which is. The average span of life, from nymph to adult of the individuals of either population is 910 months, while development from nymph to reproductive maturity in. Oviposition behaviour of the grasshopper zonocerus variegatus oviposition behaviour, aggregation, rainfall, attraction, movement, diurnal behaviour, zonocerus vuriegafus,grasshopper. I91609 exhibited lower temperature optima for hyphal extension 25. Effects of temperature on growth of metarhizium flavoviride. Journal of ethnobiology and ethnomedicine farmers perception on the importance of variegated grasshopper zonocerus variegatus l. The study assesses farmers perception on the importance of z. Assessment of nutritional quality and mineral composition of. Pdf the attraction of zonocerus variegatus orthoptera. Ang zonocerus variegatus sakop sa kahenera nga zonocerus sa kabanay nga pyrgomorphidae. The object of the present paper is to describe the results of some cage experiments with zonocerus variegatus, l. All structured data from the file and property namespaces is available under the creative commons cc0 license. It is polyphagous and damages cotton, cassava, maize, cacao, cola. I dont have a picture of the shiny green and black nymphs of phymateus leprosus which is said to be an occational pest on citrus trees in the eastern cape, south africa.
Effects of temperature on growth of metarhizium flavoviride and virulence to the variegated grasshopper, zonocerus variegatus. Defoliation and consequent crop loss in cassava caused by the. This paper presents the results of a study on the diet of zonocerus variegatus on cassava at kombe, near brazzaville in the. Effects of cypermethrin on the biochemical profile of the. Reason time to sneak through an insect now there are relatively less of those on the page. Variegated grasshopper zonocerus variegatus inaturalist. Evidence that it is becoming an increasing problem in southern nigeria prompted research into the biology, bionomics and control of this insect.
Bionomics of the variegated grasshopper zonocerus variegatus in west and. In parts of west africa, hatching is maximal at the start of the dry season late septemberearly november, with outbreaks in novemberapril. Farmers perception on the importance of variegated. Pdf zonocerus variegatus is a common grasshopper in parts of west and equtorial africa. Centre for overseas pest research, college house, wrights lane, london. Espesye sa alasiwsiw nga una nga gihulagway ni linnaeus ni adtong 1758 ang zonocerus variegatus. Lomer3 1environmental and biotechnology unit, department of botany and microbiology, university of ibadan, ibadan, nigeria. The role of the grasshopper zonocerus variegatus as vector of cassava bacterial blight in west. Later instars will eat cassava, especially when deprived of food for some time, but the adults progressively lose weight when restricted to feeding on growing cassava. This booklet provides information on the life cycle, population dynamics, behaviour, food preferences, natural enemies and control chemical, biological and mechanical methods of zonocerus variegatus. Control of the variegated grasshopper zonocerus variegatus l. The role of the grasshopper zonocerus variegatus as vector of. Observations on aggregation, migration, and feeding habits. Posts about zonocerus variegatus written by slakkelak.
General information about zonocerus variegatus zoncva. Media in category zonocerus variegatusthe following 12 files are in this category, out of 12 total. Microbial control of caged population of zonocerus variegatus. Tpc11 variegated grasshopper, zonocerus variegatus the variegated grasshopper is a widespread pest from west to east africa. Microbial control of caged population of zonocerus variegatus using beauveria bassiana and metarhizium sp. In the male, the mean body weight vary significantly between owerri.