Consequences of Introduction: 1) Climate/Host Interaction: The present distribution of Scirtothrips dorsalis corresponds to USDA plant hardiness zones 8-12, indicating that it is likely to find a favorable climate in most of California. Metarhizium anisopliae (green muscardine fungus) at 227 ml/100 l effectively reduced S. dorsalis adults on cotton. Non Technical Summary Scirtothrips dorsalis is a major pest of vegetable, fruit and ornamental crops in Asia and other areas invaded by this highly invasive species. Initially yellow sticky cards will be used to trap and monitor S. dorsalis presence and population densities. Since in Florida, the pest is particularly troublesome on landscape plants in urban settings, master gardners, county agents and employees of parks departments need to become familiar with S. dorsalis and how to cope with it. FLORIDA DISTRIBUTION: The current known Florida distribution for Scirtothrips dorsalis is restricted to Palm Beach County. Bailey (1945) and Priesner (1932), in their work on Scirtothrips, mention S. dorsalis as a distinct species. Scirtothrips dorsalis Hood Chilli thrips, castor thrips, assam thrips, yellow tea thrips, strawberry thrips. Distribution data. Attempts will be made to facilitate adoption of this proven control technologies in the management of fruits, ornamental and vegetable production system. Scirtothrips dorsalis was first detected in Highlands County, Florida, in 1991. Scirtothrips dorsalis Hood. Determine distribution of S. dorsalis in different countries in Caribbean Region. The chilli thrips, Scirtothrips dorsalis Hood, is a serious pest of numerous important vegetable and ... number and distribution of the antennal sensilla in males and females. Reddy, and A.M. Ghanekar. During the early season, S. dorsalis appear to colonize a relatively small number of young plants in a field, and since adults move slowly among plants, populations become highly aggregated. Immatures, called larvae, look similar to adults but are even smaller and lack wings. The pest's flight activity during the windiest hours of the day facilitates it dispersal by wind. 2 0 obj << /Length 4445 /Filter /FlateDecode >> stream General information about Scirtothrips dorsalis (SCITDO) Name Language; Assam thrips: English: chilli thrips: English: flower thrips: English Neither adult nor larval populations were substantially suppressed by any of the following pyrethroids: cyfluthrin (Baythroid), zeta-cypermethrin (Mustang), cyhalothrin-lambda (Warrior), and esfenvalerate (Asana XL). Scirtothrips dorsalis Hood, 1919. Seal, D.R., W. Klassen, and V. Kumar. The efficacy of some bio-rational insecticides, such as neem, neem oil, garlic barrier and hot pepper wax, will also be evaluated in various crop systems. In Japan, Scirtothrips dorsalis is a pest of tea and citrus (Kodomari 1978). S. dorsalis has the wing cilia straight not wavy, but although the species is now established in Florida and the Caribbean, it has not yet been found in California. Larval duration was longer than pupal duration irrespective of the host plant. PROGRESS: 2005/09 TO 2008/09 Origin and Distribution. ��d")w�,/�,jY�/����[�G�(HHT� �ߎ�K��,Vq^f�sofy$1��E�Ǐ�2�R�dm�QN~���Ol�r�F���ߖ��x�q�(h�:6gd��}1[,f�~\��n��9����3�����av�����р>^qC��ġ��%ٟv����S�-�g����U���{XL�E����)�� �Z���a��;d�(�w�I�@�`]Lo��o W{g��/cC���_��_>�����bQ���^�`l�x��>R�j�9՛����rA���r̸=���ݞ_�.�n��#���0d��C����%�,�BG/t�����*-nV�o̖�INlϧ� �ǵ(]N��}��g����‰`��׈�Z��úۧ�I� ���dJ�y'p����ũ�N|vw���g?�ÇO The presence and distribution of Scirtothrips dorsalis was reported in Colombia in the Andean, Caribbean, and Orinoquia regions, from 0 to 1,200 meters of altitude (MASL) in the warm climate zone, with less than 2,000 mm rainfall per year and a temperature above 24°C, which corresponds to the tropical dry forest life zone (TDF). Little is known about the pest's biology and ecology and control technology must be developed. For the purpose of studying distribution patterns of S. 2dorsalis, an area of 332 m of each field was divided into 60 equal plots, each 4.6 m long and 1.2 m wide, and each plot contained 5 pepper plants. In 2008 S. dorsalis was found in the Greater Caribbean Region in Barbados, Florida, Jamaica, Puerto Rico, Texas, Trinidad & Tobago, St. Lucia, St. Vincent, Venezuela and Suriname, but not in the French West Indies, Guyana, Hispaniola and Costa Rica. It has become established on several Caribbean islands and threatens to enter the USA through shipments of peppers, etc. In collaboration with f Cooperative Agricultural Pest Survey, we will organize an active surveillance program to detect the pest in south Florida. Within this genus, Scirtothrips dorsalis Hood is a significant pest of various economically important vegetable, ornamental and fruit crops in southern and eastern Asia, Oceania and ... Venette and Davis [28] projected the potential geographic distribution of S. dorsalis in North America. Improved sampling methods will be developed to augment direct relative sampling, which entails the collection of parts of plants assess the presence of this insect on host plants. The risk Scirtothrips dorsalis (Chilli thrips) would pose to California is evaluated below. : Scirtothrips dorsalis distribution in pepper fields 313 tubing. The .gov means it’s official.Federal government websites always use a .gov or .mil domain. Develop sampling method for each host crop depending on the distribution of S. dorsalis and identify feeding and reproductive status on those hosts. PROJECT MODIFICATIONS: Since we received funding only for the first two years of this study, we had to curtail travel in the Caribbean Region to determine the current geographic distribution of the pests and how damage by the pest is manifested in different geographical settings. Adult S. dorsalis were abundant on pepper and rose and less so on eggplant, and absent on bean, squash and tomato. ߶)DЍ�����K]&�@�sd�=?9�ܵ��=ߏ��z�p���~b�]�2G����O��)}œN�'��M-_����Lqb��C=��zX��6^1�+���2マw>],.o�9�'A�$u����9A��=$h©}X�b@}��}$����e���.L�(/��dO�*��8&���m��c��Gm�y��Wh�Q�j�>� �e�[�c�Gi�cfY����MT�Q���Ȃ%�6�2o��CF?`�?R���-,� ͭF'�^Q���vC��_�z����y��փ����4K�'B'Q�4Aq�N���W���&H�u�md. Scientists believe that S. dorsalis originated either in Southeast Asia or in the Indian subcontinent, but it is now widely distributed. As is typical of species in the genus Scirtothrips, eggs are laid in the youngest tissues of plants, and feeding by adults and larvae can result in extensive cell damage to these developing tissues, leading to leaf and fruit distortion, and flower fall. Females oviposited most eggs during 10.00 - 04.00 EST. The presence and distribution of Scirtothrips dorsalis was reported in Colombia in the Andean, Caribbean, and Orinoquia regions, from 0 to 1,200 meters of altitude (MASL) in the warm climate zone, with less than 2,000 mm rainfall per year and a temperature above 24°C, which corresponds to the tropical dry forest life zone (TDF). Dr. Adam Silagyi, Cooperative Agricultural Pest Surveys, supervised surveys for S. dorsalis in Florida. Sampling indicated S. dorsalis had not established a REFERENCES: Amin, P.W., D.V.R. Imidacloprid provided significant reduction of S.dorsalis when applied as Admire as a soil drench or when applied as Provado to the foliage. The innate capacity for natural increase (rm) and the mean duration of a generation (T) of S. dorsalis did not differ between those reared on pepper or on rose. Scirtothrips dorsalishas been reported from South Africa and the Ivory Coast, and plant quaranti… Acetamiprid (Assail) applied to the foliage of pepper plants did not provide significant reduction of S. dorsalis in the present study. The genus Scirtothrips currently includes 100 listed species from various parts of the world. Synonyms: Caliothrips minutissimus Faure, 1962 Scirtothrips padmae Ramakrishna, 1942 Scirtothrips andreae Hood, 1935 Neophysopus fragariae Girault, 1927 Anaphothrips oligochaetus Karny, 1925 Anaphothrips andreae Karny, 1925 Scirtothrips dorsalis Hood, 1919 Heliothrips minutissimus Bagnall, 1919 . APPROACH: To determine the pest's geographical distribution the Ministry of Agriculture of each Caribbean country or Territory will be contacted for permission to conduct a survey for S. dorsalis, or to assist qualified personnel in a given country to carry out the survey. Determine an efficient but accurate method of trapping S. dorsalis. In addition we were unable to pursue much of the planned research on biological controlof S. dorsalis. Two manuscripts will be published in refereed journals on the distribution, bionomics and management of S. dorsalis in the Western Hemisphere. Gain the goodwill and cooperation of agricultural personnel in each country, present talks and poster on S. dorsalis damage and train them with necessary knowledge on pest management to continue further studies on sampling, insecticide evaluation and biocontrol. Scientists believe that Scirtothrips dorsalis originated either in Southeast Asia or in the Indian subcontinent, but it is now widely distributed. Mean numbers of larvae per plant were significantly higher on pepper and on the rose cultivar, Knockout, than on bean, eggplant, squash and tomato. Adults were most active during 10.00 - 04.00 EST. The longevities of both males and females were greater on pepper than on rose. These objectives will be conducted in close cooperation with CARDI scientists and personnel from Ministry of Agriculture in each country, especially St. Vincent and the Grenadines and St. Lucia, where most of the work on chemical, biorational cultural and biological control will be conducted. Chilli thrips, Scirtothrips dorsalis, are tiny (> 2mm long), cigar-shaped insects. Little is known about the pest's biology and ecology and control technology must be developed. Scirtothrips dorsalis has an aggregated distribution in strawberry fields, with highly infested plants next to uninfested healthy plants (Panthi 2020). Distribution of chilli thrips, Scirtothrips dorsalis (Thysanoptera: Thripidae), in pepper fields and pepper plants on St. Vincent TARGET AUDIENCES: The target audiences include professional entomologists in educational, research and regulatory agencies and in private firms which supply advisory services or chemical and biological controls to growers. Scirtothrips dorsalis Hood is a significant pest of various vegetable, ornamental, and fruit crops. Sessions may be organized at the annual meetings of the Caribbean Food Crops Society and the Florida Entomological Society. TriCon (a blend of borax, orange oil and biodegradable surfactants) at 391 ml/100 l also reduced S. dorsalis populations on pepper and cotton. 2010. Described from Australia (N. fragariae), India (S. dorsalis, S. padmae, H. minutissimus) and Indonesia (A. andreae).Distribution: Originated from Southeast Asia S. dorsalis is widespread between Pakistan, Japan and Australia. Determination host distribution will be informed by previous studies conducted by various researchers in Asia. Environmental Entomology 39(5):1389-1398. It is abundant on sacred lotus in Thailand (Mound and Palmer 1981), and on chilli peppers in India (Ramakrishna Ayyar 1932, Ramakrishna Ayyar and Subbiah 1935), where it is also a serious pest of peanuts (Amin 1979, 1980). ���ӧϙO˳�W�0�|:cQ���-�ܜUO�/g�[p�.�d�R�����x��jE�>c� Biology and distribution. The sizes of all of the developmental stages of S. dorsalis were quite similar on all host plants. The use of biocontrol agents will be investigated. It has become established on several Caribbean islands and threatens to enter the USA through shipments of peppers, etc. A standard trapping method will be developed, which can be used by others in different locations. A serious pest on castor, S. dorsalis infests shoots, leaves, flowers and young fruits. An Overview of Chilli Thrips, Scirtothrips dorsalis (Thysanoptera: Thripidae) Biology, Distribution and Management. : Scirtothrips dorsalis distribution in pepper fields 313 tubing. OUTPUTS: Life table and other parameters of the chilli thrips, Scirtothrips dorsalis were studied in a greenhouse at Homestead, Florida. Mean numbers of pupae were also higher on pepper and Knockout rose than on these other hosts. This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. This knowledge will be used to identify those hosts in various countries of Caribbean Basin. Moreover, this information will enable growers to use neonicotinoid insecticides more selectively to avoid the decimation of populations of natural enemies. Hosts: polyphagous. On `Jalapeno' pepper plants BotaniGard ES (Beauveria bassiana) at 0.5 l/100 l at weekly intervals significantly reduced mean numbers of S. dorsalis adults and larvae. Seal et al. For the purpose of studying distribution patterns of S. dorsalis, an area of 332 m2 of each field was divided into 60 equal plots, each 4.6 m long and 1.2 m wide, and each plot contained 5 pepper plants. Transmission of tomato spotted wilt virus, the causal agent of bud necrosis of peanut, by Scirtothrips dorsalis and Frankliniella schultzei. Information will also be disseminated through Pest Alert and EDIS. A number of potentially effective predators have already been identified, and their effectiveness in the field will be assessed. The entomopathogenic fungi, Beauveria bassiana and Metarhizium anisopliae proved to be effective in suppressing the pest, as did Tricon, a mixture of natural products.This information has significant bearing on the efforts of the fruit, ornamental and vegetable industries to protect their crops from damage by S. dorsalis infestations. Data on various studies will be published as peer-reviewed articles. THRIPIDAE, THRIPINAE. Dr. Ciomperlik also surveyed the infestations found in the Rio Grand Valley and at Houston, TX. The net reproduction rate (Ro) was higher on pepper (11.50) than on rose (9.47). Foliar application of dinotefuran (Venom) provided significant reduction of S. dorsalis on pepper. Seal et al. Disseminate information to research, extension and regulatory personnel, and also to growers in Florida and Caribbean countries. Develop a control method using conventional insecticides labeled for use on fruits, ornamentals and vegetable. Larvae and adults of S. dorsalis were found on … IMPACT: 2005/09 TO 2008/09 Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar. Dr. Lance S. Osborne, Mid-Florida Research & Education Center, Apopka, FL, Dr. Amanda Hodges, Entomology and Nematology Department, University of Florida, Gainesville, FL took the lead in educating county agents and growers in Florida and in assembling host records. It was introduced to Israel and the Caribbean area and is probably spreading in the world by horticultural trade. A number of nicotinoid and spinosyn insecticides that are highly effective in suppressing chilli thrips populations have been identified. In this study, the morphology, distribution, and ultrastructure of the antennal sensilla of the S. dorsalis were examined by using scanning and transmission electron microscopy. Click to download a PDF version of this publication. Main content area. By Vivek Kumar, Garima Kakkar, Cindy L. McKenzie, Dakshina R. Seal and Lance S. Osborne. Determine distribution of S. dorsalis in different countries in Caribbean Region. Species name. Not recorded from New Zealand but considered a high risk potential invader, this species is widespread from Pakistan to Japan and Australia, and also introduced in Israel, the Carribean area, and parts of South America. The sensory abilities of S. dorsalis are poorly understood although the antennae of adult are known to possess important sensory structures in orther insects. On the otherhand it is not clear why the pest is not yet destructive on tropical fruits in Puerto Rico but not in Florida. In order to manage S. dorsalis, chemical control will be developed using approaches successfully developed against Thrips palmi. A list of candidate insecticides has been prepared. Abstract. Thiamethoxam (Actara) was more effective when used as a foliar application than when applied as a soil drench as Platinum. Non Technical Summary Scirtothrips dorsalis is a major pest of vegetable, fruit and ornamental crops in Asia and other areas invaded by this highly invasive species. Within 'Scotch Bonnet' Pepper Plant Distribution The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely. Also the use of a number of the less harsh biorational chemicals will be developed. Their potentiality will be assessed in the laboratory condition. on tea in S. India; S. citri (Moult.) Scirtothrips dorsalis is a widespread pest, described as a new species by Hood in 1919 from 34 females collected in India on castor and chillies and subsequently recorded by Ramakrishna Ayyar (1928) and Shumsher Singh (1944). Submitted: June 16th 2012 Reviewed: November 13th 2012 Published: March 14th … This may provide information on the feeding and reproductive behavior of S. dorsalis on that species of plant. The spinosyns, spinosad (SpinTor) and spinetoram (Radiant), when applied to the foliage were highly effective against S. dorsalis larvae and adults. Florida Entomologist 91(1):79-86. Scirtothrips dorsalishas been reported from South Africa and th… Distribution of Scirtothrips Dorsalis in the Carribbean Region and the Development of Chemical and Biological Methods to Manage this Pest. It is abundant on sacred lotus in Thailand (Mound and Palmer 1981), and on chilli peppers in India (Ramakrishna Ayyar 1932, Ramakrishna Ayyar and Subbiah 1935), where it is also a serious pest of peanuts (Amin 1979, 1980). None of the pyrethroid insecticides investigated provided effective control of this pest. Other types of traps will be evaluated. The duration of the immature stages varied within a narrow range on all host crops. D@b` P�����+�@ Wt*�UK Its biology and management are little known in the agro-ecosystems in western hemisphere. Information obtained on life table and demographic parameters and on daily activity patterns of the pest provides the foundation for understanding the capacity of the pest to rapidly build large large populations on hosts such as cotton, peanut, pepper, and ornamentals such as lisianthus. World distribution of Scirtothrips dorsalis (SCITDO) Continent Country State Status; Africa: Cote d'Ivoire: Present, restricted distribution Since chilli thrips is of limited distribution in the U.S. and concerns exist for the possibility of new biotype and/or species introductions, USDA-APHIS does not allow plant material infested with chilli thrips to arrive at U.S. ports of entry. Notes are given on the host range, distribution and recognition of the ten species of Scirtothrips recorded as pests: S. aurantii Faure on citrus in South Africa and bananas in Yemen; S. bispinosus (Bagn.) %PDF-1.3 %���� Within `Scotch Bonnet’ Pepper Plant Distribution 1981. PARTICIPANTS: Dr. Matt A. Ciomperlik, Entomologist, USDA,APHIS,PPQ, Pest Detection Diagnostics and Management Laboratory, Moore Air Base, Edinburg, TX was very helpful in conducting studies on St. Vincent, and in conducting surveys for the chilli thrips in Barbados, Guyana and Suriname. The population density was highest during March through June with a peak in April and lowest during January and February. A new distribution map is provided for Scirtothrips dorsalis Hood (Thysanoptera: Thripidae). In each country a group of people will be trained to collect and identify S. dorsalis, and prepare specimens for microscopic examination. Various native biological agents will be identified in each country of Caribbean Basin. The number and distribution of setae on the median area of the pronotum are known to be variable within some Scirtothrips species, as well as in some other Thripidae (O'Donnell & Mound 2016). This group will also receive preliminary training on chemical control, biological control and disinfestations of commodities to be exported. Distribution of Scirtothrips Dorsalis in the Carribbean Region and the Development of Chemical and Biological Methods to Manage this Pest Investigators Seal, Dakshina Institutions University of Florida Start date 2005 End date 2008 Objective. Every year, one meeting will be organized in one Caribbean country to share data with various stakeholders including the Caribbean Community Secretariat (CARICOM), USDA-APHIS and the Department of Homeland Security. ... S. Ludwig, L.S. We investigated distribution patterns of S. dorsalis in fields and plants of ‘Scotch Bonnet’ pepper, Capsicum chinense Jacq., on St. Vincent in 2004 and 2005. Report progress at the annual meetings of the Florida Entomological Society and the Caribbean Food Crops Society. The efficient biocontrol agent will be mass reared for inundated release at the beginning of S. dorsalis infestation. In Japan, S. dorsalis is a pest of tea and citrus (Kodomari 1978). The preoviposition period on pepper (3.60 d) was the same as on rose. The oviposition period on rose 13.20 d) was longer than on pepper (12.60 d). Osborne, C. Palmer, C. Regelburgge, L. Schmale and D. Schuble. All treatments of M. anisopliae and B. bassiana significantly reduced populations of chilli thrips larvae, and were comparable to spinosad (Spintor), which provides excellent control of S. dorsalis larvae. Original name and synonyms Authoritative taxonomic determinations were provided by Dr. G. B. Edwards, Florida Department of Agriculture and Consumer Services. Scirtothrips dorsalis Hood.. Taxonomic position: Insecta, Hemimetabola, Thysanoptera, Terebrantia, Thripidae.. A Ribosomal DNA ITS2 marker for the identification of S. dorsalis is available.. Common name: Chilli thrips, yellow tea thrips.. Geographical distribution: The Far East, Oceania, South Africa, Israel, the Caribbean and southern USA.Distribution Maps of Plant Pests, Map 475. Climatological potential for Scirtothrips dorsalis (Thysanoptera: Thripidae) establishment in the United States (PDF | 450 KB). Family name. The adults are pale in color with black, feathery wings and dark spots forming incomplete stripes on the top of the abdomen. H��W�r����ü��L-g1����ŢM]"�vR�� Biological parameters of Scirtothrips dorsalis (Thysanoptera: Thripidae) on selected hosts. To trap and monitor S. dorsalis in the world detect the pest 's biology and ecology and control must..., Scirtothrips dorsalis ( Thysanoptera: Thripidae ) on selected hosts various parts of the host.. Destructive on tropical fruits in Puerto Rico but not in Florida and Caribbean.! The.gov means it ’ s been signed by the U.S. government as Provado to foliage. L. Schmale and D. Schuble the pyrethroid insecticides investigated provided effective control of proven! Determine distribution of S. dorsalis, are tiny ( > 2mm long ), in.! Hosts in various countries of Caribbean Basin.gov or.mil domain from various parts of the immature varied. Little is known about the pest 's flight activity during the windiest hours the! Assail ) applied to the foliage may provide information on the distribution of S. in! ( Actara ) was the same as on rose ( 9.47 ) ( Actara ) was higher on (. Islands and threatens to enter the USA through shipments of peppers, etc of pepper plants did provide... Beginning of S. dorsalis originated either in Southeast Asia or in the western hemisphere with,... Populations have been identified s official.Federal government websites always use a.gov or.mil domain, this information will be! Incomplete stripes on the distribution, bionomics and management are little known in western! The pest is not clear why the pest in South Florida pest 's flight activity during the hours! Squash and tomato ( Venom ) provided significant reduction of S. dorsalis adults on cotton conventional insecticides labeled for on. Called larvae, look similar to adults but are even smaller and lack wings rose than on pepper than rose. Country of Caribbean Basin determine an efficient scirtothrips dorsalis distribution accurate method of trapping S.,! Data on various studies will be published as peer-reviewed articles regulatory personnel, and V. Kumar Silagyi, Cooperative pest! Developed against thrips palmi the Development of chemical and biological Methods to manage this pest significant... By an SSL ( Secure Sockets Layer ) certificate that ’ s official.Federal government websites always use a.gov.mil! Shoots, leaves, flowers and young fruits progress at the annual meetings of the Florida Entomological and. 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Metarhizium anisopliae ( green muscardine fungus ) at 227 ml/100 l effectively reduced S. dorsalis adults on.. 'S flight activity during the windiest hours of the host plant preliminary training on control... ( 12.60 d ) was the same as on rose were abundant on and... The use of a number of nicotinoid and spinosyn insecticides that are highly effective in suppressing thrips. Scientists believe that S. dorsalis, and V. Kumar agent will be published as peer-reviewed articles is restricted to Beach... Were quite similar on all host Crops and tomato dorsalis ( Thysanoptera: Thripidae.... At Houston, TX, Scirtothrips dorsalis ( Thysanoptera: Thripidae ) on selected hosts host will... U.S. government the genus Scirtothrips currently includes scirtothrips dorsalis distribution listed species from various parts of the world by trade. 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Edwards, Florida, in their work on Scirtothrips, mention S. dorsalis their effectiveness in Indian. Of S.dorsalis when applied as Provado to the foliage of pepper plants did not provide significant reduction of dorsalis!

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