FECHAR
Artigos

Manejo de Spodoptera

3.1K vizualizações | Postado em 23 de novembro de 2018 thumb artigo 780x470 - Manejo de Spodoptera

Spodoptera spp. é o desafio da vez na lavoura: aprenda a vencê-lo

Novos desafios surgem todos os dias nas lavouras brasileiras. Para o incremento de produtividade da soja nos últimos anos, recorreu-se a avanços tecnológicos e ao uso de excelentes materiais genéticos. Além disso, para proteger eficientemente a cultura da soja contra as lagartas-da-soja (Anticarsia gemmatalis), falsas-medideiras (Pseudoplusia includens e Rachiplusia nu), lagartas-das-maçãs (Heliothis virescens) e brocas-das-axilas (Crocidosema aporema) pelo Brasil afora, a inserção da tecnologia Bt, presente na soja INTACTA RR2 PRO®, foi decisiva.

Com a proteção proporcionada pela tecnologia, a população dessas pragas diminuiu consideravelmente, o que abriu espaço para pragas não alvo da tecnologia Bt, como o complexo Spodoptera. Composto pelas espécies Spodoptera frugiperda, Spodoptera eridania e Spodoptera cosmioides, esse grupo de lagartas tem causado muitos prejuízos, pois são pragas com alto nível de dano para a soja. Só a eridania consome cerca de 240 cm² de folha por indivíduo.

No caso da Spodoptera spp., segundo a Embrapa, o nível de ação é de dez lagartas por metro quadrado ou 10% de vagens atacadas. Portanto, monitorar constantemente e adotar o Manejo Integrado de Pragas (MIP) faz parte dos segredos para manter a lavoura saudável, e o primeiro passo começa com a identificação da espécie que está provocando prejuízos.

A oviposição das lagartas Spodopteras geralmente ocorre em duas camadas, e quando os ovos eclodem, as pequenas larvas começam a se alimentar da parte superior da folha, levando a um aspecto transparente. Quando maiores, essas lagartas apresentam quatro pares de falsas pernas, chegando a 50 mm de comprimento. Normalmente, essas pragas apresentam coloração acinzentada, amarronzada a preto, com listras longitudinais de cor creme ou amareladas. Convém notar que, na cabeça da frugiperda, encontramos o desenho de uma letra “Y” invertida, o que pode ocorrer em outras lagartas do complexo.

Em regiões mais quentes do Brasil, as lagartas do complexo Spodoptera acabam ficando mais ativas durante a noite, devido ao calor intenso. Durante o dia, elas tendem a se esconder na palhada, o que ajuda na questão de saber o melhor momento da aplicação de inseticidas. É por isso que a aplicação de inseticidas já no pré-plantio é eficiente para o controle dessa praga em situações de infestações.

Com monitoramento eficaz e manejo correto, você pode vencer o desafio das lagartas Spodoptera spp.

Compartilhar
Esse post foi útil para você?

Comentários

  1. Temeka disse:

    I do not even know the way I stopped up here, but I thought this submit
    was once great. I don’t recognize who you’re but definitely you are going to a famous blogger in the
    event you aren’t already. Cheers!

    my web page g it

  2. Penney disse:

    Woah! I’m really digging the template/theme of this
    site. It’s simple, yet effective. A lot of times it’s very hard to get that “perfect balance” between superb usability and visual
    appeal. I must say that you’ve done a great job with this.
    Also, the blog loads extremely fast for me on Firefox.
    Outstanding Blog!

    Also visit my website … cbd oil (gmis.org.au)

  3. Charis disse:

    It’s really a cool and useful piece of info.

    I’m glad that you just shared this helpful information with us.
    Please keep us up to date like this. Thanks for sharing.

    Also visit my site; cbd oil (http://www.ctwhitetailassociation.com)

  4. Alyce disse:

    I all the time used to read post in news papers but now as I am a user of internet thus from now I am using net
    for articles or reviews, thanks to web.

    my web-site … cbd oil (tinyurl.com)

  5. Terrance disse:

    Hi! I understand this is kind of off-topic however I had
    to ask. Does running a well-established website like yours take a large amount of work?

    I’m completely new to writing a blog however I do write in my journal every day.
    I’d like to start a blog so I will be able to share my personal
    experience and feelings online. Please let me know
    if you have any kind of recommendations or tips for brand
    new aspiring blog owners. Appreciate it!

    My webpage cbd oil – library.ect.go.th,

  6. Teodoro disse:

    I have been exploring for a bit for any high-quality articles or weblog
    posts on this sort of area . Exploring in Yahoo I ultimately stumbled upon this website.
    Studying this info So i am satisfied to exhibit that I
    have an incredibly just right uncanny feeling I came upon exactly what
    I needed. I such a lot for sure will make sure to do not
    put out of your mind this website and give it a glance regularly.

    my web blog :: cbd oil (http://tinyurl.com)

  7. Stuart disse:

    Hmm is anyone else having problems with the images on this blog loading?
    I’m trying to determine if its a problem on my end or if it’s the blog.
    Any feed-back would be greatly appreciated.

    Here is my web site :: cbd oil that works 2020

  8. Lillian disse:

    Hi there! I know this is kind of off-topic however I had
    to ask. Does building a well-established website such as yours require a lot
    of work? I’m completely new to running a blog but I do write
    in my journal daily. I’d like to start a blog so I will be able to share
    my experience and views online. Please let me know if
    you have any ideas or tips for new aspiring blog owners.
    Appreciate it!

    My webpage; cbd oil that works 2020

  9. Matthias disse:

    Hey there, I think your site might be having browser compatibility issues.
    When I look at your website in Firefox, it looks fine but when opening in Internet Explorer,
    it has some overlapping. I just wanted to give you a quick
    heads up! Other then cbd oil that works 2020,
    awesome blog!

  10. Helene disse:

    I was recommended this web site by my cousin. I am
    not sure whether this post is written by him
    as no one else know such detailed about my problem.
    You are amazing! Thanks!

    Feel free to visit my web site – cbd oil that works 2020

  11. Williemae disse:

    It’s remarkable in support of me to have a website, which is helpful in support of my know-how.
    thanks admin

    My site cbd oil that works 2020

  12. Hans disse:

    Please let me know if you’re looking for a article writer for your blog.
    You have some really good articles and I believe I would be a
    good asset. If you ever want to take some of the load off,
    I’d really like to write some articles for your blog in exchange for a link back to mine.
    Please send me an e-mail if interested. Many thanks!

    Look into my web page – cbd oil that works 2020

  13. Sadie disse:

    This blog was… how do you say it? Relevant!! Finally I have
    found something that helped me. Cheers!

    Here is my site: website hosting services

  14. Karry disse:

    I know this if off topic but I’m looking into starting my own blog and was curious what
    all is required to get setup? I’m assuming having a blog like
    yours would cost a pretty penny? I’m not very web smart so I’m not 100% certain. Any recommendations or advice would
    be greatly appreciated. Many thanks

    My web blog hosting services

  15. Joy disse:

    I always used to read article in news papers but now as I am a user of net thus from now I am using net for posts, thanks to web.

    Here is my web-site website hosting services

  16. Lorrie disse:

    Hi there! Would you mind if I share your blog with my zynga group?
    There’s a lot of folks that I think would really appreciate your content.
    Please let me know. Cheers

    Feel free to surf to my blog … hosting services

  17. Jeramy disse:

    Ahaa, its pleasant discussion regarding this post at this place at this website, I have read all
    that, so now me also commenting at this place.

    Also visit my blog: cheap flights with jet2 flights

  18. Lizette disse:

    I am truly grateful cheap flights to alicante the owner of this web site who has shared this enormous piece of writing at here.

  19. Stefan disse:

    After looking into a number of the blog posts on your web page,
    I honestly appreciate your way of blogging. I book-marked it to my bookmark webpage list and will be checking back in the near future.
    Please visit my website too and let me know your opinion. adreamoftrains web hosting reviews best web hosting 2020

  20. Jim disse:

    naturally like your website but you need to test the spelling on quite
    a few of your posts. A number of them are rife with spelling problems and I to find
    it very bothersome to inform the truth then again I’ll certainly come
    back again.

    Also visit my web site http://www.skyscanner.com

  21. Gus disse:

    Hello every one, here every person is sharing these know-how, thus it’s fastidious
    to read this web site, and I used to pay a visit this blog
    every day.

    Feel free to surf to my blog: website hosting services

  22. Debbie disse:

    It’s remarkable in support of me to have a site, which is helpful in support of my know-how.
    thanks admin

    Also visit my page; website hosting companies

  23. Kasha disse:

    Hey! Do you know if they make any plugins to assist with
    Search Engine Optimization? I’m trying to get my blog
    to rank for some targeted keywords but I’m not seeing very good success.
    If you know of any please share. Thanks!

    Here is my web-site – best hosting

  24. Henrietta disse:

    I’ll right away clutch your rss as I can not find your e-mail
    subscription link or newsletter service. Do you’ve any?
    Please allow me realize so that I may just subscribe. Thanks.

    My web page – website hosting services

  25. Donnie disse:

    Quality posts is the key to attract the viewers to visit
    the site, that’s what this website hosting companies is providing.

Deixe o seu comentário!

ADVERTÊNCIA: Os agrotóxicos são produtos perigosos à saúde humana, animal e ao meio ambiente. Antes de manuseá-los, leia atentamente e siga rigorosamente as recomendações contidas no rótulo, na bula e no receituário agronômico. Utilize sempre os equipamentos de proteção individual. nunca permita o manuseio de agrotóxicos por menores de idade. Descarte corretamente as embalagens e os restos dos produtos. não reutilize as embalagens vazias. Informe-se sobre aimportância do manejo integrado de pragas.

CONSULTE SEMPRE UM ENGENHEIRO AGRÔNOMO. VENDA SOB RECEITUÁRIO AGRONÔMICO.