BỆNH ĐỐM LÁ DOWNY MILDEW – Thuốc trừ sâu sinh học,thuốc trừ nấm,thuốc trừ rầy,thuốc diệt chuột

BỆNH ĐỐM LÁ DOWNY MILDEW

bệnh đốm lá - downy mildew trên cây hoa hồng
Cây Cảnh - Bonsai

BỆNH ĐỐM LÁ DOWNY MILDEW

Posted On June 7, 2017 at 10:23 am by / 247 Comments

Bệnh đốm lá – Downy mildew

Nếu như những đợt nắng nóng kinh khủng ở cuối mùa nắng kèm với những trận mưa đầu mùa làm cho bệnh đốm đen (tròn) gây vàng lá, rụng lá già trên cây hoa hồng phát triển mạnh (xem lại bài viết: Cây hoa hồng bị vàng lá hàng loạt đầu mùa mưa?). Bệnh đốm đen vừa được khống chế phần nào thì một loại bệnh đốm lá khác thuộc dạng nguy hiểm lại xuất hiện tấn công cây hoa hồng khi thời tiết bắt đầu có nhiều cơn mưa rào vào chiều tối và sáng sớm lá hồng luôn ướt đẫm sương mai. Đấy là bệnh đốm lá Downy mildew!

Trong quá trình chăm sóc các cây hồng ở vườn, tôi thấy rằng nếu như bệnh đốm đen ở cây hoa hồng có phát triển mạnh thì chủ yếu ảnh hưởng phần lá hồng già, làm cây rụng lá khá nhiều nhưng thời gian bệnh phát triển từ 2-7 ngày, bệnh phát triển làm cho cây hồng vàng lá từ từ. Các nhãn hiệu thuốc để diệt trừ nấm bệnh gây đốm đen khá nhiều loại, xịt vào vừa hạn chế được bệnh vừa ngăn ngừa bệnh đốm đen lan nhanh sang các cây hồng khác.

cay-hoa-hồng-bị-bẹnh-đốm-lá-trong-mùa-nắng

Dấu hiệu bệnh đốm lá Downy mildew:

Dưới đây là một vài dấu hiệu bệnh đốm lá Downy mildew trên một cây hồng ở vườn từ lúc cây mới nhiễm bệnh đến lúc nhiễm nặng:

Ban đầu, các lá hồng ở phần giữa thân xuất hiện vài đốm đen khá nhỏ, bệnh lây lan nhanh sang các lá khác gây vàng lá trầm trọng sau 2-3 ngày.

Bệnh sương mai trên cây hồng (Downy mildew on rose)

mặt dưới lá hoa hồng bị bệnh sương mai

 Phòng trị bệnh đốm lá Downy mildew (nguy hiểm) đầu mùa mưa:

Vào những ngày nhiều mưa hoặc có mưa đêm, sáng sớm hôm sau tôi thường quan sát kỹ phần lá các cây hoa hồng để:

  • Xem sương đêm có đọng nhiều trên lá hay không (môi trường ẩm ướt do sương đêm là môi trường lý tưởng để bệnh đốm lá Downy mildew phát triển)

  • Trên các lá hồng có bất cứ dấu hiệu đốm đen nào không để kịp thời trị bệnh.

Nếu phát hiện các dấu hiệu bệnh như bên trên tôi tiến hành loại bỏ các lá bệnh và phun thuốc trừ bệnh. Còn loại thuốc nào để trừ bệnh đốm lá Downy mildew có thể dùng thuốc trừ nấm bệnh Aliette 800WG (hoạt chất: Fosetyl Aluminium: 800 g/kg; của cty Bayer ) kết hợp ACSTREPTOCIN (hoạt chất streptomycin sulfate).

Nguồn: Vân Loan Garden.

Tư vấn kĩ thuật: 0933.067.033

 

 

247 thoughts on “BỆNH ĐỐM LÁ DOWNY MILDEW”

  2. Keep up the excellent piece of work, I read few articles on this web site and I believe that your weblog is rattling interesting and holds circles of excellent info .

  3. Wow cuz this is really helpful job! Congrats and keep it up. impotens behandling smensw.com/best-penis-cream/eight-hour-cream-original.php

  4. You can definitely see your skills in the work you write. The world hopes for even more passionate writers such as you who aren’t afraid to mention how they believe. At all times go after your heart. “If you feel yourself falling, let go and glide.” by Steffen Francisco.

  9. You’re a very beneficial site; couldn’t make it without ya!

    EXPERTUTLATANDE
    Manga man lider av otillracklig penisstorlek. Det kan finnas olika orsaker, inklusive alder, ofta importance, ohalsosam eller otillracklig naring, brist pa vila, brist pa hormoner, alkohol och nikotin missbruk och annat. Alla leder till samma resultat: nedgang i kvaliteten pa sexlivet.
    Supervised de senaste 20 aren har toot sett man i alla aldrar och livsstilar med detta problem. Vi lyckades hitta det perfekta botemedlet for att hjalpa dem. Namligen Titan Gel! Under the aegis kliniska provningar har det visat sig vara effektivt aven i de svaraste situationerna.
    Toot kan verkligen rekommendera Titan Gel gooona.levafriska.se/stor-penis-mens/wie-kann-ich-ihn-sexuell-ueberraschen.php wie kann ich ihn sexuell uberraschen cash-box alla mina patienter som den basta losningen. De som redan har provat det uppskattar det mycket!

  10. Thanks for delivering these superb subject material.

    EXPERTUTLATANDE
    Manga mortals lider av otillracklig penisstorlek. Det kan finnas olika orsaker, inklusive alder, ofta importance, ohalsosam eller otillracklig naring, brist pa vila, brist pa hormoner, alkohol och nikotin missbruk och annat net video calendar girls. Alla leder manure samma resultat: nedgang i kvaliteten pa sexlivet.
    Under de senaste 20 aren har net video calendar girls bout sett fellow i alla aldrar och livsstilar med detta problem. Vi lyckades hitta det perfekta botemedlet for att hjalpa dem. Namligen Titan Gel! At the beck kliniska provningar har det visat sig vara effektivt aven i de svaraste situationerna.
    Bout kan verkligen rekommendera Titan Gel opna.allformens.nl/girls/net-video-calendar-girls.php net video calendar girls till alla mina patienter som den basta losningen. De som redan har provat det uppskattar det mycket!

  15. Superb website you have in here.

    EXPERTUTLATANDE
    Manga handcuff lider av otillracklig penisstorlek. Det kan finnas olika orsaker, inklusive alder, ofta stress, ohalsosam eller otillracklig naring, brist pa vila, brist pa hormoner, alkohol och nikotin missbruk och annat. Alla leder plow samma resultat: nedgang i kvaliteten pa sexlivet.
    Subsumed under de senaste 20 aren har binge sett the human race i alla aldrar och livsstilar med detta problem. Vi lyckades hitta det perfekta botemedlet in behalf of att hjalpa dem. Namligen Titan Gel! Under kliniska provningar har det visat sig vara effektivt aven i de svaraste situationerna.
    Jag kan verkligen rekommendera Titan Gel venci.levafriska.se/prostata/svamp-i-underlivet-maen-behandling.php svamp i underlivet man behandling till alla mina patienter som den basta losningen. De som redan har provat det uppskattar det mycket!

  20. You have got very well stuff these.

    EXPERTUTLATANDE
    Manga handcuff lider av otillracklig penisstorlek. Det kan finnas olika orsaker, inklusive alder, ofta importance, ohalsosam eller otillracklig naring, brist pa vila, brist pa hormoner, alkohol och nikotin missbruk och annat. Alla leder plow samma resultat: nedgang i kvaliteten pa sexlivet.
    Subsumed under de senaste 20 aren har toot sett the human race i alla aldrar och livsstilar med detta problem. Vi lyckades hitta det perfekta botemedlet in place of att hjalpa dem. Namligen Titan Gel! Underneath kliniska provningar har det visat sig vara effektivt aven i de svaraste situationerna.
    Jag kan verkligen rekommendera Titan Gel mafor.levafriska.se/stor-penis-mens/junge-maenner-haben-sex.php junge manner haben sex harrow alla mina patienter som den basta losningen. De som redan har provat det uppskattar det mycket!

  66. Hello there, just became aware of your blog through Google, and found that it’s really informative. I?m gonna watch out for brussels. I?ll appreciate if you continue this in future. Lots of people will be benefited from your writing. Cheers!

  68. Excellent post. I was checking constantly this blog and I am impressed! Very useful info particularly the last part 🙂 I care for such info much. I was seeking this particular info for a very long time. Thank you and good luck.

  70. hello there and thank you for your info ? I have certainly picked up something new from right here. I did however expertise some technical issues using this site, since I experienced to reload the site many times previous to I could get it to load correctly. I had been wondering if your web hosting is OK? Not that I’m complaining, but sluggish loading instances times will often affect your placement in google and can damage your high quality score if advertising and marketing with Adwords. Well I?m adding this RSS to my e-mail and can look out for much more of your respective fascinating content. Make sure you update this again very soon..

  72. This is very interesting, You are a very skilled blogger. I’ve joined your feed and look forward to seeking more of your great post. Also, I have shared your web site in my social networks!

  76. Unquestionably believe that which you stated. Your favorite reason appeared to be on the web the easiest thing to be aware of. I say to you, I definitely get irked while people think about worries that they just don’t know about. You managed to hit the nail upon the top and also defined out the whole thing without having side effect , people can take a signal. Will likely be back to get more. Thanks

  85. Codigo promocional 1xBet 2025: 1XBONO25 ao se inscrever para um Bonus de boas-vindas para novos jogadores 100% hasta 130€ en apuestas deportivas. Es importante saber que el codigo promocional 1xBet ofrece a los usuarios acceso a un unico bono de bienvenida. Este debe ser seleccionado al momento del registro y estara activo al momento de hacer el primer deposito.

    https://marinimport.com.pe/articles/codigo-promocional-1xbet.html – codigo promocional 1xbet 2025

    El codigo promocional 1xBet: 1XBONO25, valido 2025, debe ser ingresado al momento de realizar la inscripcion en el operador para conseguir el bono de bienvenida para apuestas deportivas o casino 1xbet. En caso de tener problemas con el uso del codigo promocional 1xBet, los usuarios pueden contactar al servicio al cliente.

  90. Hello There. I found your blog using msn. This is a very well written article. I will be sure to bookmark it and come back to read more of your useful info. Thanks for the post. I will definitely comeback.

  91. This is very interesting, You’re a very skilled blogger. I have joined your rss feed and look forward to seeking more of your excellent post. Also, I have shared your website in my social networks!

  112. The 1win promo code: MAX500WIN. This 1Win bonus code 2025 rewards new players with a 500% bonus up to $1025. Valid codes for receiving bonuses without a deposit for new and old users. Hurry to get them today! Activate the promo code 1win and get a generous welcome bonus of up to 500% on your first four deposits.

    bonus code 1win

  113. The 1win promo code: MAX500WIN. This 1Win bonus code 2025 rewards new players with a 500% bonus up to $1025. Valid codes for receiving bonuses without a deposit for new and old users. Hurry to get them today! Activate the promo code 1win and get a generous welcome bonus of up to 500% on your first four deposits.

    https://www.gooalsocial.com/blogs/view/7793 – 1win bonus code no deposit

  144. Широкий выбор фурнитуры для плинтуса, найдите идеальный вариант.
    Прочные материалы для плинтуса, гарантия долгого срока службы.
    Легкость сборки плинтуса, для быстрой установки.
    Модные элементы для украшения плинтуса, выделитесь из общей массы.
    Фурнитура для плинтуса из экологически чистых материалов, сделайте свой дом более безопасным для здоровья.
    Модные цвета для элементов плинтуса, подчеркните цветовую гамму своего интерьера.
    Эксклюзивные варианты фурнитуры для плинтуса, сделайте свой дом неповторимым.
    Подсказки по правильной установке элементов плинтуса, для долгосрочного использования.
    Креативные решения для отделки плинтуса, добавьте шарм вашему интерьеру.
    Фурнитура для плинтуса в классическом стиле, для создания аристократичной атмосферы.
    крепления плинтуса крепления плинтуса .

  189. Hello there I am so happy I found your site, I really found you by mistake, while I was looking on Aol for something else, Anyhow I am here now and would just like to say thanks a lot for a incredible post and a all round thrilling blog (I also love the theme/design), I don’t have time to read through it all at the minute but I have bookmarked it and also added your RSS feeds, so when I have time I will be back to read more, Please do keep up the awesome jo.

    https://pravoslavnews.com.ua/led-linzi-stylni-tekhnologiyi

  207. Удобная и компактная коляска-трость для активных родителей, со съемным козырьком и регулируемой спинкой.
    Стильная и практичная коляска-трость для вашего малыша, с многофункциональной корзиной для покупок.
    Купите легкую и компактную коляску-трость по доступной цене, с удобной ручкой и амортизаторами.
    Компактная коляска-трость для активных мам и пап, и мягкими ремнями безопасности.
    geoby 05d888 https://kolyaski-trosti-progulochnye.ru/ .

  211. CCTV Focus provides in-depth analysis of video surveillance technologies, covering IP camera systems and software solutions. It features detailed reviews of video management software (VMS), highlighting features such as object detection using artificial intelligence. The site offers ratings of surveillance system manufacturers and their products. A curated list of the top 10 video surveillance software options is available. The resource also includes analysis of various surveillance technologies, with attention to specialized AI functionalities within CCTV. The content is designed for both professional installers and business owners, providing information to assist in making informed decisions about security systems. The site’s guides cover camera selection, current challenges in video surveillance and advanced security protocols.
    security system software

  217. FTP Software Lab is a premier informational resource dedicated to the FTP protocol, its ftp commands, ftp clients, ftp related technologies, and current news. We provide a comprehensive guide to understanding and utilizing FTP for secure and dependable file transfers, exploring the various aspects of this essential protocol. FTP lab features detailed insights into a range of FTP client software options, helping you choose the best tools to manage your ftp file transfers efficiently, from effortlessly ftp uploading data to reliably ftp downloading files from ftp servers. Discover the capabilities of intuitive ftp features such as drag-and-drop functionality, and how robust directory ftp synchronization ensures that your local and remote files are consistent. We delve into the technical aspects, explaining secure transfer protocols like SFTP and FTPS, which provide crucial data protection during ftp transmission. Stay up-to-date with the latest innovations in FTP technologies and gain a deeper understanding of this essential ftp protocol through our constantly updated content. We are also committed to keeping you informed about the most relevant news and trends impacting the FTP landscape. core ftp client

  219. That is a very good tip especially to those new to the blogosphere. Simple but very accurate information… Many thanks for sharing this one. A must read post!

  221. sex nhật hiếp dâm trẻ em ấu dâm buôn bán vũ khí ma túy bán súng sextoy chơi đĩ sex bạo lực sex học đường tội phạm tình dục chơi les đĩ đực người mẫu bán dâm

  223. You can certainly see your enthusiasm in the article you write.The arena hopes for more passionate writers such as you who are notafraid to mention how they believe. At all timesgo after your heart.

  226. His father, Peter, performed faculty soccer with the Midwestern State Mustangs and professionally with Main Indoor Soccer League membership Denver Avalanche, and his mom, Deana, played highschool soccer.

  227. There are definitely plenty of details like that to take into consideration. That may be a nice point to deliver up. I offer the thoughts above as common inspiration but clearly there are questions just like the one you bring up the place the most important thing will be working in sincere good faith. I don?t know if best practices have emerged round issues like that, however I am positive that your job is clearly identified as a fair game. Each boys and girls really feel the impact of only a second?s pleasure, for the rest of their lives.

  229. Whoa! This blog looks exactly like my old one! It’s on a entirely different subject but it has pretty much the same layout and design. Great choice of colors!

  230. The TNACI is focused on the restoration of freshwater ecosystems, including the research of water high quality and the propagation and reintroduction of native aquatic species to southeastern waterways, and works in partnership with different conservation teams and companies in Georgia and Tennessee.

  236. sex nhật hiếp dâm trẻ em ấu dâm buôn bán vũ khí ma túy bán súng sextoy chơi đĩ sex bạo lực sex học đường tội phạm tình dục chơi les đĩ đực người mẫu bán dâm

  237. pg slot gacorJudul: Menikmati Pengalaman Bertaruh dengan «PG Slot» di Situs Kasino ImgToon.com Dalam alam permainan kasino online, permainan slot telah menyusun salah satu permainan yang paling disukai, terutama jenis PG Slot. Di antara berbagai situs kasino online, ImgToon.com menjadi tujuan terbesar bagi pengguna yang ingin mencoba nasib mereka di banyak permainan slot, termasuk beberapa kategori terfavorit seperti demo pg slot, pg slot gacor, dan RTP slot. Demo PG Slot: Mencoba Tanpa RisikoSalah satu fungsi menarik yang disediakan oleh ImgToon.com adalah demo pg slot. Keistimewaan ini memberikan pemain untuk memainkan berbagai jenis slot dari PG tanpa harus memasang taruhan nyata. Dalam mode demo ini, Anda dapat memeriksa berbagai taktik dan mengetahui proses permainan tanpa bahaya kehilangan uang. Ini adalah cara terbaik bagi pemula untuk terbiasa dengan permainan slot sebelum berpindah ke mode taruhan asli. Mode demo ini juga memberikan Anda pandangan tentang potensi kemenangan dan hadiah yang mungkin bisa Anda terima saat bermain dengan uang asli. Pemain dapat menyusuri permainan tanpa ragu, menjadikan pengalaman bermain di PG Slot semakin menyenangkan dan bebas stres. PG Slot Gacor: Prospek Besar Mendulang KemenanganPG Slot Gacor adalah kata terkenal di kalangan pemain slot yang merujuk pada slot yang sedang dalam fase memberikan kemenangan tinggi atau lebih sering dikenal «gacor». Di ImgToon.com, Anda dapat mendapatkan berbagai slot yang masuk dalam kategori gacor ini. Slot ini terkenal memiliki peluang kemenangan lebih tinggi dan sering membagikan bonus besar, menjadikannya pilihan utama bagi para pemain yang ingin memperoleh keuntungan maksimal. Namun, harus diingat bahwa «gacor» atau tidaknya sebuah slot dapat beralih, karena permainan slot tergantung generator nomor acak (RNG). Dengan melakukan permainan secara rutin di ImgToon.com, Anda bisa mengidentifikasi pola atau waktu yang tepat untuk memainkan PG Slot Gacor dan meningkatkan peluang Anda untuk menang. RTP Slot: Faktor Penting dalam Pencarian SlotKetika berbicara tentang slot, istilah RTP (Return to Player) adalah faktor yang sangat penting untuk dipertimbangkan. RTP Slot berkaitan pada persentase dari total taruhan yang akan dipulangkan kepada pemain dalam jangka panjang. Di ImgToon.com, setiap permainan PG Slot dilengkapi dengan informasi RTP yang jelas. Semakin tinggi persentase RTP, semakin besar peluang pemain untuk memperoleh kembali sebagian besar dari taruhan mereka. Dengan memilih PG Slot yang memiliki RTP tinggi, pemain dapat memaksimalkan pengeluaran mereka dan memiliki peluang yang lebih baik untuk menang dalam jangka panjang. Ini menyebabkan RTP sebagai indikator krusial bagi pemain yang mencari keuntungan dalam permainan kasino online.

  246. I think other site proprietors should take this site as an model, very clean and fantastic user friendly style and design, let alone the content. You are an expert in this topic!

Leave a Reply

Your email address will not be published.