#Aphis gossypii

[innspubnet]

Impact of abamectin, Bacillus thuriengiensis and Neem oil extract on Aphis gossypii glover and Bemissia tabaci pests of the watermelon in Dschang | IJAAR

Author Name ES. Djomaha And SJ. Mameyong Nialepa Laboratory of Phytopathology and Agricultural Zoology, Department of Agriculture, Faculty of Agronomy and Agricultural Science, University of Dschang, Cameroon Journal Name International Journal of Agronomy and Agricultural Research | IJAAR Abstract A study on the control of watermelon pests was conducted in the Western region of Cameroon.…

[naturezaemfoco]

Algodoeiro: A Planta que Revolucionou a Indústria Têxtil

O Algodoeiro é uma planta de grande importância econômica e histórica. Originária das regiões tropicais e subtropicais da América, esta planta é a principal fonte de algodão, uma das fibras têxteis mais utilizadas no mundo.

Características Gerais

O Algodoeiro é uma planta arbustiva que pode atingir até 3 metros de altura. Suas folhas são grandes, com três a cinco lobos, e suas flores são geralmente brancas ou amarelas, transformando-se em cápsulas que contêm as sementes envoltas em fibras felpudas. Essas fibras são o algodão que conhecemos e utilizamos amplamente na indústria têxtil.

Tipos de Algodoeiro

Existem várias espécies de algodoeiro, mas o Gossypium hirsutum é o mais cultivado, respondendo por cerca de 90% da produção global de algodão. Essa espécie é conhecida por suas fibras longas e resistentes, ideais para a indústria têxtil. Gossypium hirsutum L. – Algodoeiro-das-terras-altas ou Algodoeiro-americano, nativo da América Central, das Caraíbas e do sul da Florida. Gossypium arboreum L. – Algodoeiro-arbóreo, nativo da Ásia meridional.

Gossypium barbadense L. – Algodoeiro egípcio, tambémdesignado como algodão-crioulo ou algodão de Sea Island, nativo da América do Sul tropical. Gossypium herbaceum L. – Algodoeiro-asiático ou algodoeiro-do-levante, nativo do sul de África; Gossypium vitifolium Lam. - cultivado nos Estados Unidos da América, México, Antilhas e norte da América do Sul.

Gossypium sturtianum Willis – algodoeiro-de-Sturt, nativo da Austrália.

Gossypium thurberi Tod. – algodoeiro-selvagem-do-arizona, nativo do Arizona, Novo México e norte do México.

Gossypium tomentosum Nutt. ex Seem – Ma‘o ou algodoeiro-do-Havai, espécie endémica das ilhas do Havai. O seu lint é curto e castanho-avermelhado, não sendo apropriado para a produção têxtil.

Cultivo e Produção

Condições Ideais

O algodoeiro prefere climas quentes e ensolarados, com temperaturas entre 20°C e 30°C. O solo deve ser bem drenado e rico em nutrientes. O plantio geralmente ocorre na primavera, após o risco de geadas.

Manejo e Colheita

O manejo adequado é crucial para garantir uma boa colheita. Isso inclui irrigação regular, controle de pragas e doenças, e a aplicação de fertilizantes. A colheita do algodão acontece geralmente entre 4 a 6 meses após o plantio, quando as cápsulas estão secas e abertas.

Pragas

A planta é bastante resistente, mas pode ser afetada por algumas pragas, dentre as quais destacamos:

Bicudo - Anthonomus grandis

Pulgão-do-algodão - Aphis gossypii

Lagarta-do-tomate - Helicoverpa armigera,

Lagarta-australiana-dos-botões-de-algodão - Helicoverpa punctigera

Creontiades dilutus - insecto que suga a seiva da planta.

Ácaro-rajado - Tetranychus urticae.

Ácaro-vermelho - Tetranychus ludeni e T. lambi

Tripes - Thrips tabaci e Frankliniella schultzei

Doenças

O algodoeiro é suscetível a várias doenças que podem afetar sua produtividade e qualidade. As principais doenças do algodão incluem:

1. Mancha de Ramulária

Causada pelo fungo Ramularia areola, essa doença é considerada a mais relevante no cultivo do algodão. Os sintomas incluem lesões nas folhas, que levam à desfolha precoce e podem reduzir a produtividade em até 35% durante o florescimento e a abertura dos capulhos.

2. Mancha Alvo

Provocada pelo fungo Corynespora cassiicola, a mancha alvo causa desfolha severa e abortamento das maçãs. É comum em regiões onde o algodão é cultivado após a soja, devido à migração do fungo.

3. Tombamento (ou Mela)

Essa doença é causada por um complexo de fungos do solo, como Rhizoctonia solani. Ela ataca as plântulas logo após a emergência, levando ao tombamento e morte das plantas, o que pode resultar em perdas significativas na população de plantas.

4. Mofo Branco

Causado pelo fungo Sclerotinia sclerotiorum, o mofo branco se manifesta em condições de alta umidade e pode causar danos severos às plantas, afetando a qualidade da fibra.

5. Ramulose

Outra doença importante, a ramulose é provocada por fungos e leva a lesões nas folhas, comprometendo a fotossíntese e a saúde geral da planta.

6. Antracnose

Causada pelo fungo Colletotrichum gossypii, a antracnose pode causar manchas escuras nas folhas e frutos, afetando a qualidade do algodão

Importância Econômica

O algodão produzido pelo Gossypium hirsutum é fundamental para a indústria têxtil global. Ele é utilizado na fabricação de uma vasta gama de produtos, desde roupas e tecidos até produtos médicos e de higiene. Além disso, o cultivo do algodão é uma importante fonte de renda para milhões de agricultores em todo o mundo.

Sustentabilidade

Nos últimos anos, a indústria do algodão tem buscado métodos mais sustentáveis de cultivo, como a redução do uso de pesticidas e a adoção de práticas de conservação do solo. O algodão orgânico, por exemplo, tem ganhado destaque por suas práticas menos agressivas ao meio ambiente.

Aplicações Medicinais

Além de sua importância têxtil, o Algodoeiro também possui propriedades medicinais. Suas folhas e sementes são utilizadas na medicina tradicional para tratar diversas condições, como inflamações e dores4. No entanto, é importante utilizar essas partes da planta com cautela e sob orientação de um profissional de saúde.

Conclusão

O Algodoeiro é uma planta versátil e de grande relevância tanto para a indústria têxtil quanto para a medicina tradicional. Seu cultivo e manejo adequados são essenciais para garantir a produção sustentável e a qualidade do algodão, beneficiando tanto os produtores quanto os consumidores.

Espero que este artigo seja útil para o seu blog! Se precisar de mais alguma coisa, estou à disposição.

Referências: 

Algodoeiro: A Planta que Revolucionou a Indústria Têxtil (naturezabela.com.br)

[schoje]

Foto: Ascom/Cidasc Anualmente, o Departamento Estadual de Defesa Vegetal (Dedev) da Cidasc estabelece um período de vazio sanitário para a cultura do maracujá, com o objetivo de combater a virose do endurecimento dos frutos do maracujazeiro, causada pelo Cowpea aphid-borne mosaic vírus (CABMV). O calendário para 2024 já foi definido, tendo como base a experiência de anos anteriores e os resultados obtidos. Mais uma vez, foram determinadas três regiões, com datas distintas de início e de término do vazio sanitário. Este cronograma leva em consideração características de produção das localidades, como altitude e o nível tecnológico adotado pelos fruticultores, além de atender demandas de alterações recebidas de algumas regiões produtoras. Mapa elaborado pelo Dedev/Cidasc As datas e municípios que compõem cada região são: Região I – de 1º de julho a 30 de julho de 2024: Araquari, Araranguá, Balneário Arroio do Silva, Balneário Barra do Sul, Balneário Gaivota, Barra Velha, Corupá, Criciúma, Ermo, Forquilhinha, Garuva, Guaramirim, Içara, Itapoá, Jacinto Machado, Jaraguá do Sul, Joinville, Maracajá, Massaranduba, Meleiro, Morro Grande, Passo de Torres, Praia Grande, Santa Rosa do Sul, São Francisco do Sul, São João do Itaperiú, São João do Sul, Schroeder, Sombrio, Timbé do Sul, Turvo; Região II – de 11 de julho a 09 de agosto de 2024: Ascurra, Balneário Camboriú, Balneário Piçarras, Benedito Novo, Biguaçu, Blumenau, Bombinhas, Brusque, Camboriú, Campo Alegre, Canelinha, Capivari de Baixo, Cocal do Sul, Doutor Pedrinho, Florianópolis, Garopaba, Gaspar, Governador Celso Ramos, Guabiruba, Ilhota, Imaruí, Imbituba, Indaial, Itajaí, Itapema, Jaguaruna, Laguna, Luiz Alves, Morro da Fumaça, Navegantes, Nova Veneza, Palhoça, Paulo Lopes, Penha, Pomerode, Porto Belo, Rio dos Cedros, Rio Negrinho, Rodeio, Sangão, São Bento do Sul, São José, Siderópolis, Tijucas, Timbó; Região III – de 21 de julho a 19 de agosto de 2024: demais municípios do Estado.  Durante o vazio sanitário, o produtor deve eliminar todos os maracujazeiros e não deve fazer o plantio desta espécie. Durante este período de 30 dias, a praga não encontrará plantas hospedeiras para completar seu ciclo, o que ajuda a fazer o controle com menor uso de produtos químicos. A produção de mudas é permitida, desde que sejam observados os requisitos previstos na legislação, como o uso de telas antiafídeos. A maior parte da produção estadual de maracujá se concentra em municípios da região I. Santa Catarina é o terceiro maior produtor desta fruta no país e colheu 70 mil toneladas na safra 2022/2023, representando um crescimento em torno de 27% em comparação à safra de 2021/2022. Produtor, faça sua parte e programe-se para eliminar os maracujazeiros dentro do prazo previsto para sua região, contribuindo para o controle desta praga. O que é o endurecimento dos frutos? O endurecimento dos frutos do maracujazeiro é a virose mais importante da cultura no Brasil, pelo seu alto potencial destrutivo e rápida disseminação. A doença é causada pelo Cowpea aphid borne mosaic virus (CABMV), pertencente à família Potyviridae e do gênero Potyvirus. Além de espécies de Passiflora, esse vírus infecta também, espécies das famílias Fabaceae, Solanaceae, Chenopodiaceae, Amaranthaceae e Cucurbitaceae. O vírus é transmitido por meio de inoculação mecânica (como ferramentas de poda, por exemplo), através de mudas contaminadas e por diversas espécies de pulgões vetores, como o Myzus persicae, Aphis gossypii, Aphis fabae, Aphis solanella, Toxoptera citricida, Uroleucon ambrosiae, Uroleuconam sonchi e Myzus nicotianae, durante as picadas de prova de alimentação. Os sintomas da doença podem ser observados nas folhas e frutos, quando plantas infectadas têm seu crescimento retardado, com encurtamento de entrenós dos ramos e drástica redução da produção de frutos (perdas podem chegar a 60% da produção). Os sintomas iniciais nas folhas novas alternam a coloração do limbo (superfície da folha) de verde escuro e verde claro, em forma de mosaico.

Nas folhas mais velhas, há distorção do limbo, bolhosidades, rugosidades, e o mosaico apresenta alternâncias do verde com o amarelo. Já os frutos apresentam-se deformados, rugosos e com redução de tamanho, além do endurecimento no albedo (parte branca interna da casca), que se torna espesso e com baixo rendimento de polpa, tornando-o impróprio para o comércio. Mais informações:Jornalista Denise De RocchiAssessoria de ComunicaçãoCompanhia Integrada de Desenvolvimento Agrícola de Santa Catarina (Cidasc)(48) 3665 7037e-mail: ascom@cidasc.sc.gov.br Fonte: Governo SC

[justvisitingthisplanet]

Sadly having a aphid infestation at the greenhouse I study in. Had to id them and collect samples. They guys are Aphis gossypii aka cotton/melon aphids.

[otaharuo]

ワタアブラムシ、Aphis gossypii 、１１月１１日、愛知県

[kevinscottgardens]

19 through 23 November 2018

This was a three-day work week for me and two Thanksgiving dinners! Monday I returned from Italy. Tuesday Wednesday morning we were treated to a herbarium workshop. Last April we collected and pressed some plant material from the garden. I chose Polemonium reptans L. accession 2015-0288/3 located in the North American woodland. Jill ensured they all dried properly. We had the opportunity to mount our specimen. It was a great morning.

Wednesday afternoon I spent with Susyn working on taxonomic questions. Thursday morning Franzsika and I went to collect some variegated ivy that was used for the Christmas Fayre over the weekend. That afternoon I had time to work on the records. In the evening, I was treated to a Thanksgiving dinner, on the actual day, with friends. My first Thanksgiving that was’t my own in two decades. It was a very nice treat.

Friday I ran errands, including meeting Jody and Steve in the morning. I spent the afternoon with Elizabeth preparing for our Thanksgiving the following evening. Then I met with Jody and Steve and we watched Aladdin in the West End. Thanksgiving was a blast and we didn’t get home until 3am. We spent Sunday recovering.

Medicinal plant of the week is Ziziphus jujuba. Allison brought some fruit to the meeting and it was small and delicious.

New plant ident:

Amaranthaceae Amaranthus hybridus

Amaryllidaceae Nerine bowdenii ‘Vesta K’

Apiaceae Eryngium bourgatii ‘Picos Blue’

Asteraceae Argyranthemum pinnatifidum subsp. pinnatifidum

Asteraceae Chrysanthemum nankingense

Begoniaceae Begonia soli-mutata

Crassulaceae Kalanchoe delagoensis

Ginkgoaceae Ginkgo biloba

Salicaceae Salix alba

Thymelaeaceae Daphne bholua ‘Jacqueline Postill’

Plant of the week

Cucurbitaceae Luffa aegyptiaca Mill. or Luffa cylindrica (L.) M.Roem.

common name(s) - sponge gourd, Egyptian cucumber, Vietnamese luffa, dishrag gourd, rag gourd, sponge gourd, vegetable-sponge, smooth luffa; Arabic اللوف; French courge torchon; Portuguese bucha synonym(s) - Bryonia cheirophylla Wall.; Cucumis pentandrus Roxb. ex Wight & Arn. [Invalid]; Luffa acutangula var. subangulata (Miq.) Cogn.; L. aegyptiaca var. leiocarpa (Naudin) Heiser & E.E. Schill.; L. aegyptiaca var. peramara F.M.Bailey; L. cylindrica var. insularum (A.Gray) Cogn.; L. cylindrica var. leiocarpa Naudin; L. cylindrica var. minima Naudin; L. insularum A.Gray; L. leucosperma M.Roem.; L. pentandra Roxb.; L. petola Ser.; L. subangulata Miq.; L. sylvestris Miq.; Melothria touchanensis H. Lév.; Momordica carinata Vell.; M. cylindrica L.; M. luffa L.; M. reticulata Salisb.; Poppya fabiana K.Koch; Turia cordata Forssk. ex J.F Gmel.; T. cylindrica Forssk. ex J.F Gmel.; T. sativa Forssk. [Invalid] conservation rating - none native to - Southeast Asia location - tropical corridor, accession 2018-0254 leaves - five angled stems with tendrils on the axils of leaves to facilitate climbing, leaves are broadly ovate to reniform, dark green with silvery patches on the topside, five to seven deep lobes, dentate, scabrous, apex acute, base cordate, petiole hispid and 50mm to 100mm long flowers - monoecious, produced on leaf axils, and consist of five petals of a conspicuous yellow colour, 50mm to 100mm across, united below in a bell-shaped corolla; fruit, grouped as pepo, approximately 300mm long, resembles a cucumber in shape and size; fruits take three to four months to ripen habit - annual climber habitat - tropical and subtropical climates, requires warm summer temperatures and a long, frost-free growing season pests - cucumber beetles, aphids (e.g. Aphis gossypii) disease - downy mildew, powdery mildew, alternaria blight, angular leaf spot hardiness - >15ºC (H1a) soil - moisture of at least 10% to 15% above the permanent wilting point is required to maintain growth; well-drained sandy loams are preferred; is sensitive to acid soils; the optimal soil pH is 6.0 to 6.8 sun - full sun, average temperature should be around 30°C to 35°C propagation - seed cultivation - best grown with a trellis support; requires lots of heat and lots of water to thrive nomenclature - Cucurbitaceae - cucurbita - the Latin name for the bottle-gourd, Lagenaria siceraria; Luffa - loofah, from the Arabic name, louff, for Luffa cylindrica; cylindrica - long and round, cylindrical NB - The young fruit is eaten as a vegetable and is commonly grown for that purpose in tropical Asia. Unlike the young fruit, the fully ripened fruit is strongly fibrous and inedible, and is used to make scrubbing bath sponges. An edible oil can be extracted from the seeds. The resulting oil meal can be fed to rabbits and catfish, or used as a fertilizer.

References:

CABI [online] https://www.cabi.org/isc/datasheet/31693 [27 Nov 18]

Gledhill, David, (2008) The Names of Plants, fourth edition; Cambridge University Press; ISBN: 978-0-52168-553-5

IUCN [online] http://www.iucnredlist.org/search [27 Nov 18]

Ontario Ministry of Agriculture, Food and Rural Affairs [online] http://www.omafra.gov.on.ca/CropOp/en/spec_veg/cucurbits/luffa.html [27 Nov 18]

Plant List, The [online] http://www.theplantlist.org/tpl1.1/record/kew-2338909 [27 Nov 18]

Wikipedia [online] https://en.wikipedia.org/wiki/Luffa_aegyptiaca [27 Nov 18]

[chemicalsmaterial]

Global Spirotramat Packaging Market Scope, Size and Forecast

Global Spirotramat Packaging Market will exhibit a growth rate of 7.00% for the forecast period of 2020-2027

Global Spirotramat Packaging Market Analysis and Insights:

 Spirotetramat is an insecticide that is sprayed on the plant leaves and crops to tackle insect outbreak which might lead to destroying the crop or plant. Spirotetramat is derived from tetramic acid, used for controlling the insects in their juvenile and immature stages. Spirotetramat acts as a lipid-biosynthesis inhibitor to control the attack of aphids, scale insects, and whitefly. Spirotetramat decreases the ability of insects to reproduce and reduces the process of lipids biosynthesis. Spirotetramat is effective against problematic insects such as planococcus ficus and aphis gossypii. Spirotetramat kills the insects in the initial development stages. 

Get full report here: https://www.databridgemarketresearch.com/reports/global-spirotetramat-packaging-market

 Global Spirotramat Packaging Market Scope and Market Size:

On the basis of type, the spirotetramat packaging market is segmented into insecticides, pesticides, and others.

On the basis of crop, the spirotetramat packaging market is fragmented into fruits, vegetable crops, cotton, spices, cereals, nuts, hops and others.

 Global Spirotramat Packaging Market Country Level Analysis:

The countries covered in the Spirotetramat Packaging market report are the U.S., Canada and Mexico in North America, Germany, France, U.K., Netherlands, Switzerland, Belgium, Russia, Italy, Spain, Turkey, Rest of Europe in Europe, China, Japan, India, South Korea, Singapore, Malaysia, Australia, Thailand, Indonesia, Philippines, Rest of Asia-Pacific (APAC) in the Asia-Pacific (APAC), Saudi Arabia, U.A.E, South Africa, Egypt, Israel, Rest of Middle East and Africa (MEA) as a part of Middle East and Africa (MEA), Brazil, Argentina and Rest of South America as part of South America..

Get Sample Report here: https://www.databridgemarketresearch.com/request-a-sample/?dbmr=global-spirotetramat-packaging-market

 Major TOC of the Report:

Chapter One: Introduction

Chapter Two: Market Segmentation

Chapter Three: Market Overview  

Chapter Four: Executive Summary

Chapter Five: Premium Insight

Chapter Six: COVID-19 Impact on Global Spirotetramat Packaging Market

 Get TOC here: https://www.databridgemarketresearch.com/toc/?dbmr=global-spirotetramat-packaging-market 

 Competitive Landscape and Spirotramat Packaging Market Share Analysis:

The Spirotetramat Packaging market competitive landscape provides details by competitor. Details included are company overview, company financials, revenue generated, market potential, investment in research and development, new market initiatives, global presence, production sites and facilities, company strengths and weaknesses, product launch, clinical trials pipelines, product approvals, patents, product width and breadth, application dominance, technology lifeline curve. The above data points provided are only related to the companies’ focus related to Spirotetramat Packaging market.

Get browse related report: https://www.databridgemarketresearch.com/news/global-spirotetramat-packaging-market

  Major Players:

Bayer AG

Syngenta

DuPont

Amcor plc

Bemis Company Inc.

Tetra Laval International SA.

 About Us:

Data Bridge Market Research set forth itself as an unconventional and neoteric Market research and consulting firm with unparalleled level of resilience and integrated approaches. We are determined to unearth the best market opportunities and foster efficient information for your business to thrive in the market.

 Contact:

Data Bridge Market Research

Tel: +1-888-387-2818

Email: 

Sopan.gedam@databridgemarketresearch.com

[globalaircraftgalley]

Global Spirotramat Packaging Market Analysis and Growth to 2027

Global Spirotramat Packaging Market will exhibit a growth rate of 7.00% for the forecast period of 2020-2027

Global Spirotramat Packaging Market Analysis and Insights:

 Spirotetramat is an insecticide that is sprayed on the plant leaves and crops to tackle insect outbreak which might lead to destroying the crop or plant. Spirotetramat is derived from tetramic acid, used for controlling the insects in their juvenile and immature stages. Spirotetramat acts as a lipid-biosynthesis inhibitor to control the attack of aphids, scale insects, and whitefly. Spirotetramat decreases the ability of insects to reproduce and reduces the process of lipids biosynthesis. Spirotetramat is effective against problematic insects such as planococcus ficus and aphis gossypii. Spirotetramat kills the insects in the initial development stages. 

Global Spirotramat Packaging Market Scope and Market Size:

On the basis of type, the spirotetramat packaging market is segmented into insecticides, pesticides, and others.

On the basis of crop, the spirotetramat packaging market is fragmented into fruits, vegetable crops, cotton, spices, cereals, nuts, hops and others.

 Get full report here: https://www.databridgemarketresearch.com/reports/global-spirotetramat-packaging-market

Global Spirotramat Packaging Market Country Level Analysis:

The countries covered in the Spirotetramat Packaging market report are the U.S., Canada and Mexico in North America, Germany, France, U.K., Netherlands, Switzerland, Belgium, Russia, Italy, Spain, Turkey, Rest of Europe in Europe, China, Japan, India, South Korea, Singapore, Malaysia, Australia, Thailand, Indonesia, Philippines, Rest of Asia-Pacific (APAC) in the Asia-Pacific (APAC), Saudi Arabia, U.A.E, South Africa, Egypt, Israel, Rest of Middle East and Africa (MEA) as a part of Middle East and Africa (MEA), Brazil, Argentina and Rest of South America as part of South America..

Get Sample Report here: https://www.databridgemarketresearch.com/request-a-sample/?dbmr=global-spirotetramat-packaging-market

 Major TOC of the Report:

Chapter One: Introduction

Chapter Two: Market Segmentation

Chapter Three: Market Overview  

Chapter Four: Executive Summary

Chapter Five: Premium Insight

Chapter Six: COVID-19 Impact on Global Spirotetramat Packaging Market

 Get TOC here: https://www.databridgemarketresearch.com/toc/?dbmr=global-spirotetramat-packaging-market

  Competitive Landscape and Spirotramat Packaging Market Share Analysis:

The Spirotetramat Packaging market competitive landscape provides details by competitor. Details included are company overview, company financials, revenue generated, market potential, investment in research and development, new market initiatives, global presence, production sites and facilities, company strengths and weaknesses, product launch, clinical trials pipelines, product approvals, patents, product width and breadth, application dominance, technology lifeline curve. The above data points provided are only related to the companies’ focus related to Spirotetramat Packaging market.

Get browse related report: https://www.databridgemarketresearch.com/news/global-spirotetramat-packaging-market

  Major Players:

Bayer AG

Syngenta

DuPont

Amcor plc

Bemis Company Inc.

Tetra Laval International SA.

About Us:

Data Bridge Market Research set forth itself as an unconventional and neoteric Market research and consulting firm with unparalleled level of resilience and integrated approaches. We are determined to unearth the best market opportunities and foster efficient information for your business to thrive in the market.

 Contact:

Data Bridge Market Research

Tel: +1-888-387-2818

Email: Sopan.gedam@databridgemarketresearch.com

[pauluscaagropecuaria]

INSETICIDA NEENMAX JARDIM é um produto elaborado com óleo de Neem, que contém Azadiractina, eficaz no controle de Pulgões (Aphis gossypii), lagarta (Brassolis sp), e cochonilhas (Orthezia praelonga) em jardins. Modo de Usar: Diluir 10 ml (1 flaconete) de INSETICIDA NEENMAX em 1 litro de água, em seguida colocar a solução em um pulverizador, aplicando diretamente onde as pragas estão alojadas nas plantas. A calda é suficiente para tratamento de uma área de 30 m². #neenmax #pauluscaurupes #pauluscaagropecuaria #urupes #paulusca #inseticida (em Paulusca Agropecuária) https://www.instagram.com/p/CSrPGg4LkTu/?utm_medium=tumblr

[innspubnet]

Farmers knowledge and control of two major pests: Helicoverpa armigera (Hübner) (Lepidoptera, Noctuidae) and Aphis gossypii (Glover) (Homoptera: Aphididae) in five agroecological zones in Benin (West Africa) - IJAAR

Farmers knowledge and control of two major pests: Helicoverpa armigera (Hübner) (Lepidoptera, Noctuidae) and Aphis gossypii (Glover) (Homoptera: Aphididae) in five agroecological zones in Benin (West Africa) – IJAAR

Maurille T. Elégbédé, Isabelle A. Glitho, Elie A. Dannon, Orou K. Douro Kpindou, Martin Akogbéto, Manuele Tamò

International Institute of Tropical Agriculture, Tri Postal, Cotonou, Benin

Faculté des Sciences et Techniques de l’Université d’Abomey-Calavi, Cotonou, Benin

Laboratoire d’Entomologie Appliquée, Faculté des Sciences, Université de Lomé, Lomé, Togo

Centre de Recherche Entomologique de…

[mbimphblog]

A REVIEW OF APHIDS (HOMOPTERA: APHIDIDAE) AND THEIR NATURAL ENEMIES IN VEGETABLE CROP ECOSYSTEMS IN JAMMU AND KASHMIR, INDIA  | UTTAR PRADESH JOURNAL OF ZOOLOGY

An comprehensive field survey was conducted in different vegetable ecosystems of the Kashmir Valley from 2014 to 2019 to investigate aphid pests and their naturally occurring bio-control agents (parasitoids and predators). A thorough literature review of aphids identified from the Jammu and Kashmir area was also conducted. As a result of these studies, it was determined that in Jammu and Kashmir, 18 species of aphids belonging to 12 genera infest 26 species and 30 varieties of vegetable crops (J&K). Aphis craccivora Koch, Aphis fabae solanella Theobald, Aphis gossypii Glover, Brevicoryne brassicae (Linnaeus), and Myzus persicae are the most common aphid species that infest a wide range of vegetable plant species (Sulzer). It was also discovered that at least 29 insect predators and 17 parasitoids exist naturally in J&K's vegetable ecosystems to eradicate these aphid species. Adalia tetraspilota (Hope), Coccinella septempunctata L., Cheilomenes sexmaculatus Fabricius, and Hippodamia variegata are some of the most common natural enemies (Goe.), Aphidius matricariae Haliday, Diaeretiella rapae (McIntosh), Chrysoperla zastrowi Sillemi (Esben-Petersen) (Neuroptera: Chrysopidae); Episyrphus balteatus DeGeer, Melanostoma univitatum (Wiedemann), Sphaerophoria scripta (Linnae (Hymenoptera : Braconidae). In conclusion, this study provides a detailed account of aphids and their natural enemies in relation to vegetable crops in the J&K area. This work will be useful in studies involving the development of strategies for an Integrated Aphid Control Program, especially through the use of natural bio-control agents. Please see the link :- https://mbimph.com/index.php/UPJOZ/article/view/1855

[agrivietorg]

Danh sách 4 thuốc trừ rệp ở cải bắp được nhiều bà con tin dùng

Danh sách 4 thuốc trừ rệp ở cải bắp được nhiều bà con tin dùng

Tác hại do rệp gây ra với cải bắp Hiện tượng rệp trên cải bắp khiến cho năng suất cũng như chất lượng cải bắp bị giảm thiểu mạnh mẽ. Chúng là loài có tên khao học là Aphis gossypii và Myzus persicae, vừa thuộc loài có cánh và cũng thuộc loài không cánh. Chúng có hình dạng bầu dục dài từ 1,3 – 1,9 mm và rộng từ 0,5 – 0,8 mm, với mỗi mùa thì chúng lại mang một màu sắc khác nhau từ vàng nhạt đến…

[rnomics]

Data, Vol. 3, Pages 36: De Novo Transcriptome Assembly of Cucurbita Pepo L. Leaf Tissue Infested by Aphis Gossypii

Zucchini (Cucurbita pepo L.), extensively cultivated in temperate areas, belongs to the Cucurbitaceae family and it is a species with great economic value. One major threat related to zucchini cultivation is the damage imposed by the cotton/melon aphid Aphis gossypii Glover (Homoptera: Aphididae). We performed #RNA-sequencing on cultivar “San Pasquale” leaves, uninfested and infested by A. gossypii, that were collected at three time points (24, 48, and 96 h post infestation). Then, we combined all high-quality reads for de novo assembly of the transcriptome. This resource was primarily established to be used as a reference for gene expression studies in order to investigate the transcriptome reprogramming of zucchini plants following aphid infestation. In addition, raw reads will be valuable for new experiments based on the latest bioinformatic tools and analytical approaches. The assembled transcripts will serve as an important reference for sequence-based studies and for primer design. Both datasets can be used to support/improve the prediction of protein-coding genes in the zucchini genome, which has been recently released into the public domain. http://bit.ly/2MByvZL

[evoldir]

Graduate position: INRA_Avignon.AphidAdaptation

PhD thesis proposal : Non host resistance and genetic/heritable resistance: how Aphis gossypii, the melon aphid, does adapt? Supervisor Nathalie Boissot INRA-GAFL (Avignon, http://bit.ly/2rmYxWU), Nathalie.Boissot@inra.fr for more details The paradigm for plant-pathogen interactions is based on the evolution of molecular patterns of pathogens recognized by the plant (1)): pathogens adapt to immune reaction of plants, either the immune reaction concern the entire plant species and act against the pathogen at the scale species, it is non host resistance, or the immune reaction concern specific plant accessions, what we call genetic resistance or heritable resistance. Like pathogens, aphids deliver into the plant effectors via their adapted mouthparts, the stylets. Aphids establish a compatible relationship with the plant when these stylets reach the phloem in which they feed. Does the paradigm for plants/pathogens coevolution portable to plants/aphids interaction as proposed recently (2), especially in the Melon-Aphis gossypii system? An alternate hypothesis is that aphid specializing on Cucurbit and/or adapted to NLR resistance present in melon use the particularity of the phloemic system, which is dual, in Cucurbits (3). (1) Jones D.G., Dangl J.L. ,2006, The plant immune system. Nature 444:323-32 (2) Dangl J.L., Horvath D.M., Staskawicz B.J,2013, Pivoting the plant immune system from dissection to deployment. Science 341:746-751 (3) Zhang B.C., Tolstikov V., Turnbull C., Hicks L.M., Fiehn O., 2010, Divergent metabolome and proteome suggest functional independence of dual phloem transport systems in cucurbits. PNAS 107:13532-13537 WORKPACKAGES 1A / Establish in which phloem of Cucurbitaceous plants feed in A. gossypii clones specializing on Cucurbits. This could be tested on Cucurbits belonging to three genera of Cucurbitaceaous: Cucumis melo, Cucurbita pepo and Citrullus lanatus. 1B / Determine whether the punctures of non-Cucurbits aphids not-specializing on Cucurbits cause clogging of the fascicular and/or extra-fascicular phloem on a non-Vat melon plant. 1C / Determine whether the punctures of the specializing clones on Cucurbits which elicit the Vat resistance (ie avirulent clone) lead to clogging of the fascicular phloem and/or extra fascicular on melon Vat plants. 2A / Characterize the diversity of candidate genes for their involvement in the adaptation of A. gossypii to Cucurbits. Establish the phylogeny and confront it with the membership of the breed of hosts of the individuals analyzed. Seek for the traces of selection in these genes. 2B / Identify the avirulence gene in A. gossypii eliciting the Vat resistance. Characterize its diversity, establish the frequency of the allele (s) conferring virulence in natural populations. METHODOLOGY PROPOSITIONS To determine in which phloem feed the aphids specializing on Cucurbits, adapted or not to the Vat-1 resistance, we will collaborate with the team of Sylvie Dinant at the IJPB (http://bit.ly/2sG1q9t). We will take advantage of the difference in flow velocity in the two types of phloem in Cucurbits, coupled with the use of fluorochromes (Zhang et al., 2010) that can be tracked even in honeydew produced by aphids. We will use the particular phenotype of aphid-elicited resistance to viruses to identify among an established set of candidate proteins the aphid effector for avirulence. Candidate proteins will be expressed in planta via the use of a viral expression vector. If the candidate protein is the elicitor of resistance, replication of the virus will be blocked in Vat-1 melons but will occur in non-Vat-1 melons. This work will be carried out in collaboration with Ccile Desbiez, (http://bit.ly/2rn8fso). We will sample on Cucurbits winged individuals at spring, these aphid populations are known to contain wide diversity (Thomas et al., 2012). Each individual will be characterized on the basis of the 8 SSR markers used routinely in the laboratory and assigned to one of the genetic groups established on the basis of the 2095 genotypes that we have described to date. The candidate genes studied will be sequenced in individuals with non-redundant multilocus genotypes, we will establish phylogenies and selective traces of selection. This work will be carried out in collaboration with Flavie Vanlerberghe, (http://bit.ly/2sFrBwS). Boissot Nathalie via Gmail

[captaindomy]

​IL CONTROLLO MICRONATURALE DEGLI AFIDI DEGLI AGRUMI

I più dannosi sono l’afide verde degli agrumi (Aphis spiraecola), l’afide Bruno degli agrumi (Toxoptera aurantii) e l’afide del cotone (Aphis gossypii)

L’afide verde attacca soprattutto l’arancio, il mandarino e le clementine. Si può riconoscere per il colore verdognolo e per i sifoni e la parte terminale dell’addome color brunastro. I danni si manifestano principalmente su foglie e germogli, dove…