Selection of suitable entomopathogenic nematodes for biological control of sweetpotato weevil, cylas formicarius coleoptera. View of life cycle of sweet potato weevil, cylas formicarius var. Anastrepha obliqua 70 cylas formicarius anastrepha serpentina 100 elegantulus 150 anastrepha suspensa 70 cydia pomonella 200. Ipomoea horsfalliae princes vine ufifas assessment. Gallardo 1988 and wolcott 1947 have reported 15 parasitoids from puerto rico.
Eeny027 sweetpotato weevil, cylas formicarius fabricius insecta. What links here related changes upload file special pages permanent link page. Brentidae 3 some compensatory ability, with the relationship between vine damage and yield nonlinear, and sometimes not significant. No one has contributed a brief summary to this page yet. Dyrektywa ied pdf many translated example sentences containing ied polishenglish dictionary and search engine przemyslowych dyrektywa ied umozliwily aktualizacje.
When applied using density 50 ijsml against cylas formicarius, the nematode population grew up to ca. Biological control there are several reports of predators and parasites attacking sweet potato weevil waterhouse and norris, however, effective resistance has not been identified despite numerous attempt to. Irradiation treatment for cylas formicarius elegantulus. In indonesia tidal land is very wide and quite potential for sweet potatoes, but an obstacle for this cultivation is sweet potato weevil cyla s formicarius causes loss of 100%. Cylas formicarius spends most of its life cycle within the vine or swollen root, which provides some protection for the developing weevils. Senior risk manager treatments usda aphis ppq rpm 4700 river road, unit 3 riverdale, md 20737 301 8512141. Sweet potatoes the tuber of ipomoea batatas are a major food crop globally. This study was conducted on junenovember 2016 in south. Selection of suitable entomopathogenic nematodes for. Pdf feeding by adult sweet potato weevils, cylas formicarius.
A symptom of infestation by sweetpotato weevil is yellowing of the vines, but a heavy infestation is usually necessary before this is apparent. Gallardo has proposed a biocontrol program utilizing the augmentation method using the parasitoid, mirax insularis. Larvae of sweetpotato weevil, cylas formicarius fabricius. This treatment should be applied in accordance with the requirements outlined in ispm. Bugmaster flowable insecticide 5 l and 20 l page 1 of distributed by. Cylas puncticollis was chosen as the subject of this study because of its potential spread into lesotho.
Ipm crsp indonesia universal trap for sweet potato weevil indonesia. Sweetpotato weevil spw, cylas formicarius is an important insect pest of sweetpotato. Distribution of the sweet potato weevil cylas formicarius fabricius and the small sweet potato weevil, euscepes postfasciatus fairmaire in the amami islands. Another pest of coffee with a high potential for biological control is the coffee leafminer, leucoptera coffeella. Gallardo has proposed a biocontrol program utilizing the augmentation. This research aimed to evaluate the efficacy of biopesticide bebas contains beauveria bassiana entomopathogenic conidia to c. The elongated antlike adults of the three species can be distinguished from each other. Sweetpotato weevil, cylas formicarius ufifas edis university of. The triterpenol, boehmerol, has previously been found in the skin of the tuber where, as its acetate ester, it has been shown to signal oviposition by the weevil. Olfactionbased approaches, such as use of synthetic. Origins, divergence, and contrasting invasion history of the sweet. In field manual of techniques in invertebrate pathology. Besides that, on the susceptibility index, the result of both experiments showed that all varieties categorized in moderatly susceptible.
The research aims to understand the pathogenicity and value of lc 50 of b. Formal objections had been received on the irradiation treatment for cylas formicarius. A thesis submitted for the fulfillment of the requirements for the degree of master of philosophy in agriculture. Trapping sweetpotato weevil, cylas formicarius coleoptera. K bonsi, 2007 assessment of introduction of cylas formicarius elegantulus coleptera. Antennal transcriptome and expression analyses of olfactory genes. A sex pheromone of the sweetpotato weevil, cylas formicarius elegantulussummers, was obtained from collections of volatiles from virgin females, and. Jan 15, 2015 transcriptome analysis and systemic rnai response in the african sweetpotato weevil cylas puncticollis, coleoptera, brentidae article pdf available in plos one 101. Cylas formicarius elegantulus eggs, larvae, pupae andor adults during the inspection process.
Pdf behavioral repertory of adult cylas formicarius fabricius. Efficacy of biopesticide bebas against sweet potato weevils. Batatasenol, a major triterpenol from sweet potato skins. Field performance of tissuecultured, virustested okinawan.
Sweetpotato weevil, cylas formicarius fabricius insecta. Storage roots were graded according to state of hawaii standards, and marketable yields included grades aa, a, and b. It causes damage in the field to leaves, stems and tuberous roots. One of the most destructive pests of sweet potato ipomoea batatas. Pdf the life stages of cylas formicarius in sweet potato tubers were assessed during first and second generations. Pdf adult female and male sweetpotato weevils, cylas formicarius fabricius, have repertories of at least 19 and 21 behavior patterns. The sweet potato weevil cylas formicarius elegantulus is a serious pest of this important crop. Potential for the establishment of cylas punticollis boheman. Bretidae into weevilfree areas in the southern united states. Media in category cylas formicarius the following 7 files are in this category, out of 7 total. The pdf file you selected should load here if your web browser has a pdf reader plugin installed for example, a recent version of adobe acrobat reader if you would like more information about how to print, save, and work with pdfs, highwire press provides a helpful frequently asked questions about pdfs. Identification of sex pheromone produced by female sweetpotato.
Dengan kata lain, kumbang cylas merupakan hama utama pada ubi jalar. Efficacy of biopesticide bebas against sweet potato. Proceedings of the association for plant protection of kyushu, no. In addition, injuries due to sweetpotato weevil cylas formicarius elegantulus or rough sweetpotato weevil blosyrus asellus were estimated. Pdf biology of sweet potato weevil, cylas formicarius f. Recorded average yields in this crop are too low 6,5 tha and it is largely attributable to several reasons involving soil quality, lack of irrigation facilities and damage caused by sweetpotato weevil, cylas formicarius f. This document is 4hpsj25, one of a series of the 4h youth development department, ufifas extension. Feed the future innovation lab for the reduction of postharvest loss funded by. Transcriptome analysis and systemic rnai response in the african sweetpotato weevil cylas puncticollis, coleoptera, brentidae article pdf available in plos one 101. Sweet potato cultivar and harvest date influence on cylas. In the absence of a host moths will migrate to nearby fields. Crop losses due to sweet potato weevil are estimated at 6097%. Potential for the establishment of cylas punticollis. Sweet potato weevil cylas formicarius is the most serious pest of sweet potato ipomoea batatas, not only in the virgin islands but also throughout the caribbean.
The adults will cut into the yam cortex with their sharp mandibles creating holes 2 mm deep. Please note if egg masses are present could by due to already mated females flying in. Cylas formicarius, sweet potato varieties, susceptibility index. A sex pheromone of the sweetpotato weevil, cylas formicarius elegantulus summers, was obtained from collections of volatiles from virgin females, and. Over the past several years, however, acreage in georgia has rapidly increased, with growers capitalizing on market demand and successfully using sweet potato as a rotation for wintergrown vegetable crops. Entomopathogenic nematode on sweet potato weevil journal of. Mdsajedul islam, and woodward bailey united states department of agriculture usda animal and plant health. Proceedings of the hawaiian entomological society 26. Pdf a bioassay was developed to quantify the feeding of adult. For this reason, the first attempts at chemical control were usually not successful due to the lack of systemic insecticides sutherland 1986a. Lae, agriculture department, papua new guinea university of technology. This treatment applies to the irradiation of fruits and vegetables at 165 gy minimum absorbed dose to prevent the development of f1 adults of. Cylas puncticollis is the easiest to distinguish because the adult is all black and larger than the other two fig.
Larvae tunnel in the sweet potato tubers, leave cavities filled with fecal material, and often introduce pathogens that cause decay. In indonesia tidal land is very wide and quite potential for sweet potatoes, but an obstacle for this cultivation is sweet potato weevil cylas formicarius causes loss of 100%. Cylas formicarius, the sweet potato weevil, is a species of sweet potato weevil in the beetle. The weevil can be managed by integrated pest management ipm strategy, which includes host plant resistance, biotechnological approaches, cultural methods, biological control, use of semiochemicals, botanical and chemical pesticides etc. Kepekaan beberapa varietas ubi jalar ipomoea batatas l. The technical panel on phytosanitary treatments tppt met in kyoto, 2630 july 2010, hosted by the ministry of agriculture, forestry and fisheries, japan.
Cylas formicarius elegantulus 2011 scope of the treatment. Forum factors affecting ionizing radiation phytosanitary. Pdf transcriptome analysis and systemic rnai response in. Over the past several years, however, acreage in georgia has rapidly increased, with growers capitalizing on market demand and successfully using sweet potato as.
Potential for biological control of crop pests in the. The tppt welcomed the steward who will serve until november 2010, at which time the standards. The sweet potato weevil spw, cylas formicarius, is a serious pest of sweet potato. Countries with established trapping and surveillance activities for cylas formicarius elegantulus need to take account of the fact that adult insects may be detected in the traps in the importing country. Please note if egg masses are present could by due to. Pdf management of sweet potato weevil cylas formicarius. This pest is therefore one of the main limiting factors for the production of sweet potato. Currently pheromone traps combined with biocontrol agents, metarhizium and beauveria are being tested. Studies on sweet potato weevil, cylas formicarius with special reference to evaluation of some improved sweet potato genotypesipomoea batatas l. Curculionidae 6, 10 white wax scale gascardia destructor 5, 9. This document is eeny027, one of a series of the department of entomology and nematology, ufifas extension. Flowable insecticide 5 l and 20 l page 1 of poison. Entomopathogenic nematode on sweet potato weevil journal. This document is 4hpsj25, one of a series of the 4h youth.
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