{"id":9816,"date":"2012-04-13T02:42:15","date_gmt":"2012-04-12T19:42:15","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/04\/benh-soc-tim-cay-luong-va-bien-phap-phong-tru\/"},"modified":"2019-09-24T15:47:39","modified_gmt":"2019-09-24T08:47:39","slug":"benh-soc-tim-cay-luong-va-bien-phap-phong-tru","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/benh-soc-tim-cay-luong-va-bien-phap-phong-tru\/","title":{"rendered":"B\u1ec7nh s\u1ecdc t\u00edm c\u00e2y Lu\u1ed3ng v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb"},"content":{"rendered":"

Ph\u1ea1m Quang Thu, \u0110\u1eb7ng Thanh T\u00e2n<\/strong><\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

T\u00d3M T\u1eaeT <\/strong><\/p>\n

C\u00e2y Lu\u1ed3ng l\u00e0 m\u1ed9t c\u00e2y c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao v\u00e0 \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0m m\u1ed9t trong nh\u1eefng c\u00e2y tr\u1ed3ng ch\u1ee7 l\u1ef1c c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh tr\u1ed3ng m\u1edbi 5 tri\u1ec7u ha r\u1eebng. Th\u1eddi gian g\u1ea7n \u0111\u00e2y tr\u00ean c\u00e2y Lu\u1ed3ng xu\u1ea5t hi\u1ec7n m\u1ed9t lo\u1ea1i b\u1ec7nh m\u1edbi, tri\u1ec7u ch\u1ee9ng c\u1ee7a b\u1ec7nh l\u00e0 tr\u00ean c\u00e1c l\u00f3ng c\u1ee7a c\u00e2y Lu\u1ed3ng b\u1ecb b\u1ec7nh xen nh\u1eefng s\u1ecdc m\u00e0u t\u00edm, c\u00f3 th\u1ec3 k\u00e9o d\u00e0i h\u1ebft chi\u1ec1u d\u00e0i c\u1ee7a l\u00f3ng ho\u1eb7c nh\u1eefng \u0111o\u1ea1n ng\u1eafn, r\u1ed9ng t\u1eeb 1-4 mm. Tr\u00ean c\u00e1c \u0111\u1ed1t ra r\u1ea5t nhi\u1ec1u c\u00e0nh nh\u00e1nh. Nh\u1eefng th\u00e2n k\u00fd sinh b\u1ecb b\u1ec7nh th\u01b0\u1eddng x\u1ed1p, m\u1ecdng n\u01b0\u1edbc v\u00e0 \u0111\u1ed1t kh\u00f4ng ch\u00e1y. M\u0103ng b\u1ecb b\u1ec7nh c\u00f3 m\u00e0u t\u00edm, n\u0103m \u0111\u1ea7u m\u0103ng c\u00f2n to, nh\u1eefng n\u0103m sau m\u0103ng nh\u1ecf d\u1ea7n; tr\u00ean g\u1ed1c m\u0103ng b\u1ecb b\u1ec7nh m\u1ecdc ra nhi\u1ec1u m\u0103ng nh\u1ecf v\u00e0 c\u1ee9 th\u1ebf h\u00ecnh th\u00e0nh c\u00e1c m\u0103ng th\u1ee9 c\u1ea5p t\u1ea1o th\u00e0nh c\u00e1c b\u00fai m\u0103ng. Nh\u1eefng m\u0103ng n\u00e0y kh\u00f4ng th\u1ec3 ph\u00e1t tri\u1ec3n th\u00e0nh th\u00e2n kh\u00ed sinh v\u00e0 m\u1ed9t b\u1ee5i Lu\u1ed3ng khi \u0111\u00e3 b\u1ecb b\u1ec7nh th\u00ec l\u1ee5i d\u1ea7n v\u00e0 kh\u00f4ng th\u1ec3 cho thu ho\u1ea1ch.<\/p>\n

T\u1eeb nh\u1eefng k\u1ebft qu\u1ea3 m\u00f4 t\u1ea3 \u0111\u1eb7c \u0111i\u1ec3m, m\u00e0u s\u1eafc h\u1ec7 s\u1ee3i, \u0111\u1eb7c di\u1ec3m v\u00e0 k\u00edch th\u01b0\u1edbc b\u00e0o t\u1eed, k\u1ebft h\u1ee3p v\u1edbi ph\u00e2n t\u00edch ADN, n\u1ea5m g\u00e2y ph\u00e2n l\u1eadp \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c m\u1eabu b\u1ec7nh m\u0103ng Lu\u1ed3ng b\u1ecb h\u1ea1i \u1edf Ng\u1ecdc L\u1eb7c, Thanh H\u00f3a \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 lo\u00e0i Fusarium equiseti <\/em>(Corda) Sacc.<\/p>\n

Khi tr\u1ed3ng r\u1eebng m\u1edbi, h\u1ed1 tr\u1ed3ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng v\u00f4i b\u1ed9t, h\u1ed3 r\u1ec5 c\u00e2y gi\u1ed1ng b\u1eb1ng dung d\u1ecbch score 0,1%, phun \u0111\u1ecbnh k\u1ef3 dung dich score 0,1% trong th\u1eddi gian 3-4 th\u00e1ng cho k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t, t\u1ef7 l\u1ec7 b\u1ee5i b\u1ecb b\u1ec7nh r\u1ea5t th\u1ea5p ch\u1ec9 c\u00f3 2,2%, s\u1ed1 c\u00e2y b\u1ecb b\u1ec7nh tr\u00ean t\u1ed5ng s\u1ed1 c\u00e2y \u0111i\u1ec1u tra ch\u1ec9 c\u00f3 0,7%. C\u00e2y sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n t\u1ed1t, b\u00ecnh qu\u00e2n m\u1ed7i b\u1ee5i \u0111\u1ea1t 6,3 c\u00e2y. \u0110\u1ed1i v\u1edbi r\u1eebng tr\u1ed3ng b\u1ecb b\u1ec7nh: d\u1ecdn s\u1ea1ch c\u00e1c c\u00e2y, m\u0103ng b\u1ecb b\u1ec7nh, t\u01b0\u1edbi 10 l\u00edt dung d\u1ecbch score 0,1% ho\u1eb7c tilt 0,2% cho m\u1ed7i b\u1ee5i Lu\u1ed3ng. C\u00e1c b\u1ee5i Lu\u1ed3ng c\u1ee7a l\u00f4 th\u00ed nghi\u1ec7m n\u00e0y \u0111\u00e3 kh\u00f4ng xu\u1ea5t hi\u1ec7n m\u0103ng tr\u00e1i v\u1ee5 (m\u0103ng b\u1ecb b\u1ec7nh) v\u00e0 kh\u00f4ng c\u00f3 c\u00e2y b\u1ecb b\u1ec7nh, m\u0103ng kh\u00f4ng b\u1ecb b\u1ec7nh to kh\u1ecfe \u0111\u00e3 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh \u0111\u00fang v\u1ee5.<\/p>\n

T\u1eeb kh\u00f3a:<\/strong> C\u00e2y Lu\u1ed3ng, B\u1ec7nh s\u1ecdc t\u00edm, Dung di\u0323ch score, Fusarium equiseti<\/em><\/p>\n

\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong><\/p>\n

C\u00e2y Lu\u1ed3ng (Dendrocalamus membranaceus<\/em>) thu\u1ed9c ph\u00e2n h\u1ecd tre (Bambusoideae<\/em>) l\u00e0 c\u00e2y c\u00f3 t\u00e1c d\u1ee5ng nhi\u1ec1u m\u1eb7t. V\u1ec1 sinh th\u00e1i, c\u00e2y Lu\u1ed3ng c\u00f3 l\u01b0\u1ee3ng l\u00e1 l\u1edbn n\u00ean kh\u1ea3 n\u0103ng h\u00fat ch\u1ea5t \u0111\u1ed9c nh\u01b0 CO2<\/sub> v\u00e0 th\u1ea3i kh\u00ed O2<\/sub> l\u00e0m trong l\u00e0nh kh\u00f4ng kh\u00ed r\u1ea5t t\u1ed1t, khi l\u00e1 r\u1ee5ng xu\u1ed1ng s\u1ebd tr\u1ea3 l\u1ea1i l\u01b0\u1ee3ng m\u00f9n l\u00e0m cho \u0111\u1ea5t t\u01a1i x\u1ed1p, th\u1ea5m n\u01b0\u1edbc t\u1ed1t, gi\u1ea3m d\u00f2ng ch\u1ea3y b\u1ec1 m\u1eb7t, h\u1ea1n ch\u1ebf x\u00f3i m\u00f2n r\u1eeda tr\u00f4i. Ngo\u00e0i ra, c\u00e2y Lu\u1ed3ng c\u00f3 h\u1ec7 th\u1ed1ng th\u00e2n ng\u1ea7m d\u00e0y \u0111\u1eb7c, h\u1ec7 r\u1ec5 ch\u00f9m ph\u00e1t tri\u1ec3n n\u00ean c\u00f3 kh\u1ea3 n\u0103ng ph\u00f2ng h\u1ed9 cao. M\u1eb7t kh\u00e1c Lu\u1ed3ng c\u00f3 th\u1ec3 tr\u1ed3ng xen v\u1edbi c\u00e1c lo\u00e0i c\u00e2y g\u1ed7 kh\u00e1c l\u00e0m t\u0103ng c\u1ea5u tr\u00fac v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh cho r\u1eebng h\u1ed7n giao n\u00e0y, do c\u00f3 s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u1ec1 c\u00e1c chu tr\u00ecnh chuy\u1ec3n ho\u00e1 v\u1ec1 ch\u1ea5t v\u00e0 n\u0103ng l\u01b0\u1ee3ng. V\u1ec1 kinh t\u1ebf, c\u00e2y Lu\u1ed3ng d\u1ec5 tr\u1ed3ng, sinh tr\u01b0\u1edfng nhanh, bi\u1ec7n ph\u00e1p l\u00e2m sinh \u0111\u01a1n gi\u1ea3n d\u1ec5 \u00e1p d\u1ee5ng, tr\u1ed3ng m\u1ed9t l\u1ea7n cho thu nh\u1eadp h\u00e0ng n\u0103m, gi\u00e1 tr\u1ecb kinh t\u1ebf cao, \u1ed5n \u0111\u1ecbnh. Th\u00e2n c\u00e2y Lu\u1ed3ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng trong x\u00e2y d\u1ef1ng, trong c\u00f4ng nghi\u1ec7p gi\u1ea5y, c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t v\u00e1n nh\u00e2n t\u1ea1o v\u00e0 ng\u00e0nh th\u1ee7 c\u00f4ng m\u1ef9 ngh\u1ec7 m\u00e2y tre \u0111an. C\u00e2y Lu\u1ed3ng kh\u00f4ng nh\u1eefng c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 m\u1eb7t s\u1eed d\u1ee5ng m\u00e0 c\u00f2n c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 m\u1eb7t th\u1ef1c ph\u1ea9m, m\u0103ng Lu\u1ed3ng l\u00e0 lo\u1ea1i th\u1ef1c ph\u1ea9m ngon \u0111ang \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong n\u01b0\u1edbc v\u00e0 qu\u1ed1c t\u1ebf nh\u01b0 c\u00e1c lo\u1ea1i m\u0103ng chua, m\u0103ng ng\u1ecdt, m\u0103ng kh\u00f4,…V\u00ec v\u1eady, c\u00e2y Lu\u1ed3ng ch\u00ednh l\u00e0 ngu\u1ed3n thu nh\u1eadp ch\u00ednh c\u1ee7a ng\u01b0\u1eddi d\u00e2n. V\u1ec1 x\u00e3 h\u1ed9i, c\u00e2y Lu\u1ed3ng t\u1ea1o c\u00f4ng \u0103n vi\u1ec7c l\u00e0m, t\u0103ng thu nh\u1eadp, c\u1ea3i thi\u1ec7n m\u1ee9c s\u1ed1ng cho ng\u01b0\u1eddi d\u00e2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 ng\u01b0\u1eddi d\u00e2n v\u00f9ng trung du mi\u1ec1n n\u00fai. Ch\u00ednh v\u00ec v\u1eady, c\u00e2y Lu\u1ed3ng \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0m m\u1ed9t trong nh\u1eefng c\u00e2y tr\u1ed3ng ch\u1ee7 l\u1ef1c c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh tr\u1ed3ng m\u1edbi 5 tri\u1ec7u ha r\u1eebng.<\/p>\n

(K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u00f4ng ngh\u1ec7 L\u00e2m nghi\u1ec7p giai \u0111o\u1ea1n 2006-2010, trang 352-363)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

\nCây Lu\u1ed3ng là m\u1ed9t cây có giá tr\u1ecb kinh t\u1ebf cao và
\n\u0111\u01b0\u1ee3c ch\u1ecdn làm m\u1ed9t trong nh\u1eefng cây tr\u1ed3ng ch\u1ee7 l\u1ef1c c\u1ee7a ch\u01b0\u01a1ng trình tr\u1ed3ng m\u1edbi 5
\ntri\u1ec7u ha r\u1eebng. Th\u1eddi gian g\u1ea7n \u0111ây trên cây Lu\u1ed3ng xu\u1ea5t hi\u1ec7n m\u1ed9t lo\u1ea1i b\u1ec7nh m\u1edbi,
\ntri\u1ec7u ch\u1ee9ng c\u1ee7a b\u1ec7nh là trên các lóng c\u1ee7a cây Lu\u1ed3ng b\u1ecb b\u1ec7nh xen nh\u1eefng s\u1ecdc màu
\ntím, có th\u1ec3 kéo dài h\u1ebft chi\u1ec1u dài c\u1ee7a lóng ho\u1eb7c nh\u1eefng \u0111o\u1ea1n ng\u1eafn, r\u1ed9ng t\u1eeb 1-4
\nmm. Trên các \u0111\u1ed1t ra r\u1ea5t nhi\u1ec1u cành nhánh.<\/span>\n<\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9816"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=9816"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9816\/revisions"}],"predecessor-version":[{"id":19193,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9816\/revisions\/19193"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}