{"id":16026,"date":"2024-08-20T08:57:32","date_gmt":"2024-08-20T01:57:32","guid":{"rendered":"https:\/\/catlong.vn\/?p=16026"},"modified":"2025-10-17T15:15:35","modified_gmt":"2025-10-17T08:15:35","slug":"benh-chay-bia-la-lua-va-cach-phong-tri","status":"publish","type":"post","link":"https:\/\/catlong.vn\/?p=16026","title":{"rendered":"B\u1ec6NH CH\u00c1Y B\u00ccA L\u00c1 L\u00daA V\u00c0 C\u00c1CH PH\u00d2NG TR\u1eca."},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

B\u1ec7nh ch\u00e1y b\u00eca l\u00e1 tr\u00ean l\u00faa (b\u1ea1c l\u00e1) do vi khu\u1ea9n Xanthomonas oryzae g\u00e2y ra, l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng d\u1ecbch h\u1ea1i nghi\u00eam tr\u1ecdng l\u00e0m gi\u1ea3m n\u0103ng su\u1ea5t l\u00faa…<\/p>\n\n\n\n

R\u1ea7y ph\u1ea5n tr\u1eafng h\u1ea1i l\u00faa v\u00e0 c\u00e1ch ph\u00f2ng tr\u1ecb<\/p>\n\n\n\n

B\u1ec7nh ch\u00e1y b\u00eca l\u00e1 l\u00faa l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng d\u1ecbch h\u1ea1i nguy hi\u1ec3m v\u00e0 r\u1ea5t kh\u00f3 ph\u00f2ng tr\u1ecb. B\u1ec7nh l\u00e0m \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng l\u00faa, \u0111\u1eb7c bi\u1ec7t b\u1ec7nh g\u00e2y h\u1ea1i n\u1eb7ng trong v\u1ee5 m\u00f9a m\u01b0a, gi\u00f3.<\/p>\n\n\n\n

Tuy <\/a>nhi\u00ean, trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, b\u1ec7nh n\u00e0y \u0111\u00e3 xu\u1ea5t hi\u1ec7n \u1edf h\u1ea7u h\u1ebft c\u00e1c v\u1ee5 l\u00faa trong n\u0103m, nh\u1ea5t l\u00e0 c\u00e1c t\u1ec9nh ph\u00eda Nam.<\/p>\n\n\n\n

B\u1ec7nh l\u1ea1i th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n \u0111\u1ed3ng th\u1eddi c\u00f9ng lo\u1ea1i b\u1ec7nh h\u1ea1i nguy hi\u1ec3m kh\u00e1c nh\u01b0 \u0111\u1ea1o \u00f4n, n\u00ean \u0111\u00e3 g\u00e2y kh\u00f3 kh\u0103n cho c\u00f4ng t\u00e1c ph\u00f2ng tr\u1eeb v\u00e0 l\u00e0m t\u0103ng chi ph\u00ed s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

Tri\u1ec7u ch\u1ee9ng v\u00e0 t\u00e1c nh\u00e2n g\u00e2y h\u1ea1i<\/p>\n\n\n\n

B\u1ec7nh ch\u00e1y b\u00eca l\u00e1 l\u00faa do vi khu\u1ea9n Xanthomonas oryzae g\u00e2y ra. V\u1ebft b\u1ec7nh \u0111i\u1ec3n h\u00ecnh l\u00e0 nh\u1eefng v\u1ec7t l\u00e1 b\u1ecb ch\u00e1y kh\u00f4 tr\u1eafng c\u00f3 ranh gi\u1edbi r\u00f5 r\u00e0ng, ch\u1ea1y d\u1ecdc theo m\u00e9p l\u00e1 (b\u00eca l\u00e1). Sau \u0111\u00f3 c\u00f3 th\u1ec3 lan r\u1ed9ng l\u00e0m cho c\u1ea3 l\u00e1 b\u1ecb ch\u00e1y kh\u00f4. N\u1ebfu b\u1ec7nh n\u1eb7ng c\u00f3 th\u1ec3 l\u00e0m cho to\u00e0n b\u1ed9 l\u00e1 l\u00faa b\u1ecb ch\u00e1y kh\u00f4 tr\u1eafng, l\u00e0m h\u1ea1t l\u00faa b\u1ecb l\u1eedng, l\u00e9p, l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n\n\n\n

Khi l\u00faa giai \u0111o\u1ea1n m\u1ea1, b\u1ec7nh r\u1ea5t d\u1ec5 b\u1ecb nh\u1ea7m v\u1edbi b\u1ec7nh do l\u00faa thi\u1ebfu kali. Khi l\u00faa b\u1ecb b\u1ec7nh do thi\u1ebfu kali, ranh gi\u1edbi gi\u1eefa ph\u1ea7n l\u00e1 b\u1ecb b\u1ec7nh v\u00e0 ph\u1ea7n l\u00e1 kh\u1ecfe kh\u00f4ng r\u00f5.<\/p>\n\n\n\n

\u0110i\u1ec1u ki\u1ec7n ph\u00e1t sinh ph\u00e1t tri\u1ec3n: Trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft m\u01b0a gi\u00f3 l\u1edbn, \u1ea9m \u0111\u1ed9 cao v\u00e0 \u00edt n\u1eafng th\u00ec b\u1ec7nh ph\u00e1t tri\u1ec3n r\u1ea5t m\u1ea1nh. B\u1ec7nh c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i t\u1eeb giai \u0111o\u1ea1n m\u1ea1, tuy nhi\u00ean th\u01b0\u1eddng g\u00e2y h\u1ea1i t\u1eadp trung v\u00e0o giai \u0111o\u1ea1n l\u00faa \u0111\u1ee9ng c\u00e1i \u0111\u1ebfn tr\u1ed5. \u0110\u1eb7c bi\u1ec7t, nh\u1eefng ru\u1ed9ng v\u1ec7 sinh v\u00e0 ti\u00eau h\u1ee7y t\u00e0n d\u01b0 k\u00e9m, s\u1eed d\u1ee5ng gi\u1ed1ng nhi\u1ec5m b\u1ec7nh, gieo s\u1ea1 d\u00e0y, b\u00f3n ph\u00e2n th\u1eeba \u0111\u1ea1m th\u01b0\u1eddng b\u1ecb n\u1eb7ng.<\/p>\n\n\n\n

B\u1ec7nh l\u00e2y lan qua v\u1ebft th\u01b0\u01a1ng c\u01a1 gi\u1edbi do m\u01b0a gi\u00f3 l\u1edbn t\u1ea1o ra, ho\u1eb7c x\u00e2m nh\u1eadp qua kh\u00ed kh\u1ed5ng, th\u1ee7y kh\u1ed5ng c\u1ee7a l\u00e1.<\/p>\n\n\n\n

Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1ecb<\/p>\n\n\n\n

Tr\u01b0\u1edbc khi gieo tr\u1ed3ng, v\u1ec7 sinh \u0111\u1ed3ng ru\u1ed9ng, d\u1ecdn s\u1ea1ch t\u00e0n d\u01b0 c\u00e2y b\u1ec7nh v\u1ee5 tr\u01b0\u1edbc (tr\u1ee5c v\u00e0 d\u00ecm k\u1ef9 g\u1ed1c r\u1ea1), d\u1ecdn s\u1ea1ch c\u1ecf d\u1ea1i quanh b\u1edd. S\u1eed d\u1ee5ng gi\u1ed1ng kh\u00e1ng b\u1ec7nh \u0111\u1ec3 gieo tr\u1ed3ng.<\/p>\n\n\n\n

Kh\u00f4ng gieo s\u1ea1 qu\u00e1 d\u00e0y \u0111\u1ec3 c\u00e2y l\u00faa c\u1ee9ng c\u00e1p, kh\u00e1ng \u0111\u01b0\u1ee3c b\u1ec7nh (\u00e1p d\u1ee5ng theo l\u01b0\u1ee3ng gi\u1ed1ng khuy\u1ebfn c\u00e1o c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh IPM, kho\u1ea3ng 120 kg\/ha, n\u1ebfu s\u1ea1 h\u00e0ng, l\u01b0\u1ee3ng gi\u1ed1ng s\u1ebd c\u00f2n \u00edt h\u01a1n).<\/p>\n\n\n\n

B\u00f3n ph\u00e2n c\u00e2n \u0111\u1ed1i h\u1ee3p l\u00fd, kh\u00f4ng th\u1eeba \u0111\u1ea1m (n\u00ean \u00e1p d\u1ee5ng theo b\u1ea3ng so m\u00e0u l\u00e1 l\u00faa. Khi l\u00faa b\u1ecb th\u1eeba \u0111\u1ea1m, l\u00e1 c\u00f3 m\u00e0u xanh \u0111\u1eadm v\u00e0 phi\u1ebfn l\u00e1 s\u1ebd kh\u00f4ng \u0111\u1ee9ng th\u1eb3ng m\u00e0 n\u1eb1m ngang).<\/p>\n\n\n\n

Trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft ph\u00f9 h\u1ee3p cho b\u1ec7nh ph\u00e1t sinh, ph\u00e1t tri\u1ec3n nh\u01b0 \u0111\u00e3 n\u00eau \u1edf tr\u00ean, th\u00ec ch\u1ee7 \u0111\u1ed9ng ph\u00f2ng ng\u1eeba tr\u01b0\u1edbc nh\u01b0 kh\u00f4ng b\u00f3n d\u01b0 ph\u00e2n \u0111\u1ea1m, t\u0103ng c\u01b0\u1eddng ph\u00e2n kali.<\/p>\n\n\n\n

C\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng phun ph\u00f2ng ng\u1eeba tr\u01b0\u1edbc \u1edf ru\u1ed9ng gieo b\u1eb1ng gi\u1ed1ng nhi\u1ec5m, gieo s\u1ea1 d\u00e0y v\u00e0 b\u1ecb d\u01b0 \u0111\u1ea1m, ho\u1eb7c sau nh\u1eefng tr\u1eadn m\u01b0a c\u00f3 gi\u00f3 l\u1edbn, l\u00faa \u1edf giai \u0111o\u1ea1n t\u1eeb \u0111\u1ee9ng c\u00e1i \u0111\u1ebfn \u0111\u00f2ng tr\u1ed5…<\/p>\n\n\n\n

Theo d\u00f5i ru\u1ed9ng th\u01b0\u1eddng xuy\u00ean, nh\u1ea5t l\u00e0 nh\u1eefng giai \u0111o\u1ea1n c\u00e2y l\u00faa m\u1eabn c\u1ea3m v\u1edbi b\u1ec7nh (t\u1eeb giai \u0111o\u1ea1n l\u00faa \u0111\u1ee9ng c\u00e1i \u0111\u1ebfn \u0111\u00f2ng tr\u1ed5). Khi th\u1ea5y b\u1ec7nh ch\u1edbm xu\u1ea5t hi\u1ec7n tr\u00ean \u0111\u1ed3ng ng\u1eebng s\u1eed d\u1ee5ng ph\u00e2n \u0111\u1ea1m v\u00e0 phun ngay m\u1ed9t trong c\u00e1c lo\u1ea1i thu\u1ed1c sau: H\u1ecfa Ti\u1ec5n 50SP, Alpine 80WG, ho\u1eb7c Saipan 2SL.<\/p>\n\n\n\n

S\u1eed d\u1ee5ng H\u1ecfa Ti\u1ec5n 50SP ho\u1eb7c Saipan 2SL c\u00f2n gi\u00fap qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c c\u1ea3 b\u1ec7nh \u0111\u1ea1o \u00f4n.<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1ec7nh ch\u00e1y b\u00eca l\u00e1 tr\u00ean l\u00faa (b\u1ea1c l\u00e1) do vi khu\u1ea9n Xanthomonas oryzae g\u00e2y ra, l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng d\u1ecbch h\u1ea1i nghi\u00eam tr\u1ecdng l\u00e0m gi\u1ea3m n\u0103ng su\u1ea5t l\u00faa… R\u1ea7y ph\u1ea5n tr\u1eafng h\u1ea1i l\u00faa v\u00e0 c\u00e1ch ph\u00f2ng tr\u1ecb B\u1ec7nh ch\u00e1y b\u00eca l\u00e1 l\u00faa l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng d\u1ecbch h\u1ea1i nguy hi\u1ec3m v\u00e0 …<\/p>\n

B\u1ec6NH CH\u00c1Y B\u00ccA L\u00c1 L\u00daA V\u00c0 C\u00c1CH PH\u00d2NG TR\u1eca.<\/span> Read More »<\/a><\/p>\n","protected":false},"author":3,"featured_media":16028,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[156],"tags":[],"class_list":["post-16026","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts\/16026","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16026"}],"version-history":[{"count":1,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts\/16026\/revisions"}],"predecessor-version":[{"id":16029,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts\/16026\/revisions\/16029"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/media\/16028"}],"wp:attachment":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}