CÁC BỆNH KHẢM DO VIRUS Y GÂY RA TRÊN CÂY ỚT – AGRICULTURE
CÁC BỆNH KHẢM DO VIRUS Y GÂY RA TRÊN CÂY ỚT
Cây Ớt

CÁC BỆNH KHẢM DO VIRUS Y GÂY RA TRÊN CÂY ỚT

Posted On February 23, 2017 at 5:05 pm by / 74 Comments

CÁC BỆNH KHẢM DO VIRUS Y GÂY RA TRÊN CÂY ỚT


Các mầm bệnh: Vi rút gây vằn ớt potyvirus (PepMoV), Vi rút khắc thuốc lá potyvirus (TEV), và Vi rút khoai tây Y potyvirus (PVY)

CÁC DẤU HIỆU VÀ TRIỆU CHỨNG

Các triệu chứng trên những cây nhiễm các loại bệnh khảm do potyvirus có thể khác nhau, nhưng nói chung, cây ớt sẽ thể hiện một màu nhạt hơn trên tổng thể với những vân khảm (những vùng xanh nhạt và đậm xen kẽ) trên ít nhất một số lá cây, đặc biệt là trên các lá non. Cây ớt thường sẽ trở nên còi cọc, lá quăn, và quả bị méo mó cùng với vân khảm trên lá. Các triệu chứng có thể tương tự như bệnh do vi rút khảm dưa chuột gây ra.

NHẬN XÉT VỀ BỆNH

Tất cả những loại potyvirus ảnh hưởng đến cây ớt đều được lan truyền từ cây này sang cây khác bởi một số loài rệp. Rệp có thể truyền những vi rút này trong những khoảng thời gian rất ngắn (vài phút đến vài giờ). Loại hình hoạt động của rệp khiến vi rút lan truyền diễn ra khi rệp di chuyển mạnh qua ruộng ớt và thăm dò các mô của cây khi chúng bắt đầu ăn hại. Một khi rệp đã xâm lấn cây ớt, ổn định để ăn hại, việc truyền vi rút giảm mạnh. Do vậy, sự lan truyền thường rất nhanh. Nói chung, sự lan truyền potyvirus trong ruộng xảy ra khi hoạt động của rệp trong ruộng ở mức cao.

Tất cả các loại potyvirus ảnh hưởng đến ớt đều có phạm vi vật thể chủ rộng bao gồm cả những cây trồng khác và nhiều loài cây cỏ dại, cụ thể là những cây thuộc họ Cà (cà chua, khoai tây, cà pháo, và họ cà dược). Tồn tại những biến dạng khác nhau của potyvirus, một số trong đó khác biệt về khả năng gây bệnh cụ thể của chúng. Rất dễ tìm thấy những cây ớt nhiễm đồng thời nhiều loại potyvirus khác nhau và còn nhiễm vi rút khảm dưa chuột. Tuy phun diệt loài rệp trung gian sẽ không ngăn cản được lây nhiễm xảy ra, người trồng ớt vẫn nên cố gắng để quản lý mật độ của loài vật trung gian này khi có thể.

XỬ LÝ

Hiện đã có một số giống cây kháng bệnh được dẫn xuất từ những loài cây có quan hệ chặt chẽ với cây ớt, và những nỗ lực đang được thực hiện để phát triển nhiều loài kháng bệnh hơn. Nhìn chung, những nguồn gen kháng bệnh ở các loài ớt chuông nhiều hơn đối với Potato Y potyvirus, sau đó là Potyvirus khắc thuốc lá, tiếp theo là Potyvirus vằn ớt.

Chưa có cách kiểm soát bằng hóa chất hiệu quả được phát triển để trị các bệnh khảm do potyvirus ở California. Phạm vi tác động của những vi rút này là không thể dự đoán được theo các năm và địa điểm. Thuốc trừ sâu không có hiệu quả trong việc kiểm soát sự lan truyền của các vi rút này vì nó không giết chết rệp trước khi rệp có thể nhiễm và truyền vi rút sang cây.

Các tấm phủ phản quang được áp dụng cho cây trồng đã thể hiện sự hiệu quả trong việc xua đuổi loài rệp khỏi cây, do đó giảm nhẹ hoặc trì hoãn sự lây nhiễm vi rút.

Nguồn: sưu tầm.

74 thoughts on “CÁC BỆNH KHẢM DO VIRUS Y GÂY RA TRÊN CÂY ỚT

  1. I would like to thank you for the efforts you have put in penning this site. I am hoping to see the same high-grade content by you in the future as well. In fact, your creative writing abilities has encouraged me to get my own website now 😉

  2. Hello, There’s no doubt that your blog could be having browser compatibility issues. Whenever I take a look at your web site in Safari, it looks fine however, when opening in Internet Explorer, it’s got some overlapping issues. I merely wanted to provide you with a quick heads up! Aside from that, excellent website!

  3. An interesting discussion is worth comment. I believe that you should write more on this subject, it may not be a taboo subject but usually folks don’t discuss these topics. To the next! Many thanks!!

  4. It’s difficult to find educated people on this topic, however, you sound like you know what you’re talking about! Thanks

  5. Hi, I do believe this is an excellent website. I stumbledupon it 😉 I am going to revisit yet again since i have book-marked it. Money and freedom is the best way to change, may you be rich and continue to help other people.

  6. Greetings! Very useful advice within this post! It is the little changes that produce the biggest changes. Thanks for sharing!

  7. Hello, There’s no doubt that your blog could possibly be having browser compatibility problems. When I look at your site in Safari, it looks fine however, when opening in I.E., it has some overlapping issues. I merely wanted to provide you with a quick heads up! Aside from that, great blog!

  8. Spot on with this write-up, I really believe that this web site needs far more attention. I’ll probably be returning to read more, thanks for the advice!

  9. Pingback: generic tadalafil
  10. Having read this I believed it was really enlightening. I appreciate you taking the time and effort to put this information together. I once again find myself personally spending a significant amount of time both reading and leaving comments. But so what, it was still worthwhile!

  11. Good post. I learn something totally new and challenging on blogs I stumbleupon every day. It will always be interesting to read through content from other authors and practice something from other websites.

  12. Hi, I do believe this is an excellent web site. I stumbledupon it 😉 I may return once again since I book marked it. Money and freedom is the greatest way to change, may you be rich and continue to help others.

  13. Aw, this was an exceptionally good post. Finding the time and actual effort to produce a really good article… but what can I say… I procrastinate a lot and don’t seem to get nearly anything done.

  14. Pingback: merck ivermectin
  15. Greetings! Very useful advice within this article! It’s the little changes that will make the most important changes. Thanks a lot for sharing!

  16. It’s hard to come by educated people in this particular subject, however, you seem like you know what you’re talking about! Thanks

  17. An outstanding share! I have just forwarded this onto a colleague who had been conducting a little research on this. And he in fact ordered me lunch due to the fact that I found it for him… lol. So allow me to reword this…. Thank YOU for the meal!! But yeah, thanx for spending the time to talk about this matter here on your site.

  18. Oh my goodness! Impressive article dude! Thanks, However I am experiencing difficulties with your RSS. I don’t know the reason why I am unable to join it. Is there anybody else having similar RSS issues? Anyone who knows the solution can you kindly respond? Thanks!!

  19. Right here is the right site for anyone who wishes to find out about this topic. You understand so much its almost tough to argue with you (not that I really would want toÖHaHa). You certainly put a new spin on a subject that’s been discussed for decades. Wonderful stuff, just excellent!

  20. Just desire to say your article is as amazing. The clarity in your post is just great and i can assume you are an expert on this subject. Fine with your permission allow me to grab your feed to keep updated with forthcoming post. Thanks a million and please carry on the enjoyable work.

  21. When I initially commented I appear to have clicked on the -Notify me when new comments are added- checkbox and now each time a comment is added I recieve 4 emails with the same comment. Perhaps there is a means you are able to remove me from that service? Cheers!

  22. Good day! I could have sworn Iíve been to this website before but after browsing through a few of the posts I realized itís new to me. Nonetheless, Iím definitely happy I came across it and Iíll be book-marking it and checking back regularly!

  23. I have to show appreciation to this writer for rescuing me from this type of challenge. Right after researching through the world wide web and getting thoughts that were not pleasant, I assumed my life was gone. Living without the solutions to the issues you’ve fixed as a result of this review is a serious case, and the kind which might have in a negative way affected my entire career if I had not encountered your blog. Your personal know-how and kindness in controlling all the stuff was priceless. I’m not sure what I would’ve done if I had not come upon such a thing like this. I’m able to now relish my future. Thanks a lot very much for your reliable and effective guide. I won’t be reluctant to suggest your web site to any person who desires counselling about this subject.

  24. A fascinating discussion is definitely worth comment. I believe that you need to write more about this issue, it might not be a taboo matter but typically people don’t discuss these topics. To the next! Kind regards!!

  25. Buzz over Elvis has been constructing over the previous few months, with Austin Butler’s depiction of the King himself being met with praise and awe.

  26. Hi there just wanted to give you a quick heads up. The text in your post seem to be running off the screen in Safari. I’m not sure if this is a formatting issue or something to do with internet browser compatibility but I thought I’d post to let you know. The design and style look great though! Hope you get the problem resolved soon. Many thanks

  27. Good blog you have here.. It’s difficult to find excellent writing like yours these days. I honestly appreciate individuals like you! Take care!!

  28. Hi my friend! I wish to say that this article is amazing, nice written and include almost all vital infos. I would like to see more posts like this.

  29. You merely pick the Minions, your mobile phone or perhaps your Minions method. It s hassle-free, but you need to be very careful that you make the purchases. Before taking the leap, take a little time to find out more regarding a Minions.

  30. A powerful share, I just given this onto a colleague who was doing a bit of evaluation on this. And he in fact purchased me breakfast as a result of I found it for him.. smile. So let me reword that: Thnx for the deal with! However yeah Thnkx for spending the time to discuss this, I feel strongly about it and love reading extra on this topic. If potential, as you develop into experience, would you mind updating your weblog with more particulars? It is highly useful for me. Huge thumb up for this blog submit!

  31. Mothers and fathers should always check the reviews on film. Some imdb movie appear like they actually are. Before you purchase, examine the game’s status and the selection of warnings.

  32. Pingback: ivermectin on line
  33. You must take into account which is the benefits which will be derived. They could do nothing at all to your movie a small tad. But purchasing these matters can make film more preserve and entertaining time.

  34. Dump any Minions movie that happen to be breaking up.What this means is it should be thrown within the trash rather than provided or offered. You can be accidentally harming yet another kid if you managed this.|When you managed this, you could be unintentionally damaging yet another youngster.

  35. Increasing numbers of people than ever before are appreciating the simplicity of movies yahoo every day. The following instructions will assist you to experience this procedure if you’re a bing enthusiast so as to get pleasure from your chosen tunes.

  36. Seek information when it comes to membership assistance you make use of. yahoo movie tunes that happen to be legal one-by-one can become high-priced. A lot of internet retailers that promote films retailers have monthly subscription professional services where you may spend less. Check out restrictions when you are considering.

  37. Should you be a serious game player the chances are you have your favorites.Be sure you’re constantly searching for Jujutsu Kaisen 0 are out there.You could possibly enjoy playing a particular type of Jujutsu Kaisen 0 movie that you really love to play.

Leave a Reply

Your email address will not be published.