Khi b\u1ea1n l\u1ea5y m\u1ed9t bao h\u1ea1t gi\u1ed1ng th\u1ef1c v\u1eadt, chu\u1ea9n b\u1ecb th\u00f4ng qua \u0111\u01b0\u1eddng b\u01b0u \u0111i\u1ec7n g\u1eedi cho b\u1ea1n c\u00f9ng h\u1ecdc hay b\u1ea1n th\u00e2n \u1edf n\u01a1i xa, nh\u00e2n vi\u00ean b\u01b0u \u0111i\u1ec7n s\u1ebd y\u00eau c\u1ea7u b\u1ea1n tr\u01b0\u1edbc ti\u00ean qua c\u01a1 quan ki\u1ec3m d\u1ecbch \u0111\u1ed9ng v\u1eadt, th\u1ef1c v\u1eadt ki\u1ec3m d\u1ecbch. Sau khi th\u00f4ng qua ki\u1ec3m d\u1ecbch, kh\u00f4ng ph\u00e1t hi\u1ec7n ra c\u00f4n tr\u00f9ng nguy h\u1ea1i g\u00e2y b\u1ec7nh c\u00f3 t\u00ednh nguy hi\u1ec3m, c\u01a1 quan n\u00e0y s\u1ebd c\u1ea5p cho b\u1ea1n m\u1ed9t t\u1edd ch\u1ee9ng nh\u1eadn ki\u1ec3m d\u1ecbch, khi \u0111\u00f3 bao h\u1ea1t c\u1ee7a b\u1ea1n m\u1edbi \u0111\u01b0\u1ee3c g\u1eedi \u0111i.<\/p>\n\n\n\n
C\u00f3 l\u1ebd b\u1ea1n s\u1ebd n\u00f3i: \u201cT\u00f4i g\u1eedi c\u00f3 m\u1ed9t t\u00ed h\u1ea1t gi\u1ed1ng, t\u1ea1i sao l\u1ea1i ph\u1ea3i ki\u1ec3m d\u1ecbch?\u201d<\/p>\n\n\n\n
Tr\u00ean th\u1ef1c t\u1ebf h\u1ea1t gi\u1ed1ng, c\u00e2y gi\u1ed1ng c\u1ea7n ph\u1ea3i ki\u1ec3m d\u1ecbch hay kh\u00f4ng kh\u00f4ng ph\u1ea3i do s\u1ed1 l\u01b0\u1ee3ng \u00edt hay nhi\u1ec1u, m\u00e0 ch\u1ee7 y\u1ebfu l\u00e0 mu\u1ed1n ki\u1ec3m tra nh\u1eefng h\u1ea1t gi\u1ed1ng, c\u00e2y gi\u1ed1ng \u0111\u00f3 c\u00f3 c\u00f4n tr\u00f9ng g\u00e2y b\u1ec7nh nguy hi\u1ec3m hay kh\u00f4ng. B\u1edfi v\u00ec s\u1ee9c sinh tr\u01b0\u1edfng c\u1ee7a vi khu\u1ea9n g\u00e2y b\u1ec7nh, c\u00f4n tr\u00f9ng g\u00e2y h\u1ea1i r\u1ea5t kh\u1ecfe, nhanh. N\u1ebfu th\u1ea3 l\u1ecfng vi\u1ec7c ki\u1ec3m d\u1ecbch \u0111\u1ed1i v\u1edbi s\u1ed1 l\u01b0\u1ee3ng h\u1ea1t gi\u1ed1ng, c\u00e2y gi\u1ed1ng d\u00f9 l\u00e0 \u00edt c\u0169ng s\u1ebd g\u00e2y ra nh\u1eefng t\u1ed5n th\u1ea5t to l\u1edbn trong s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p. V\u00ec v\u1eady g\u1eedi h\u1ea1t gi\u1ed1ng, m\u1ea7m c\u00e2y qua \u0111\u01b0\u1eddng b\u01b0u \u0111i\u1ec7n, b\u1ea5t lu\u1eadn s\u1ed1 l\u01b0\u1ee3ng nhi\u1ec1u hay \u00edt, \u0111\u1ec1u ph\u1ea3i th\u00f4ng qua ki\u1ec3m d\u1ecbch.<\/p>\n\n\n\n
Ki\u1ec3m d\u1ecbch th\u1ef1c v\u1eadt, n\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, ch\u00ednh l\u00e0 kh\u00f4ng \u0111\u1ec3 cho b\u1ea5t c\u1ee9 vi khu\u1ea9n b\u1ec7nh, c\u00f4n tr\u00f9ng c\u00f3 h\u1ea1i v\u00e0 c\u1ecf t\u1ea1p g\u00e2y h\u1ea1i n\u00e0o cho c\u00e2y tr\u1ed3ng, c\u00f9ng v\u1edbi con \u0111\u01b0\u1eddng \u0111i\u1ec1u v\u1eadn, g\u1eedi qua b\u01b0u \u0111i\u1ec7n h\u1ea1t gi\u1ed1ng, c\u00e2y gi\u1ed1ng. \u0110\u1ec3 ph\u00f2ng tr\u00e1nh s\u1ef1 l\u00e2y lan v\u00e0 lan tr\u00e0n c\u1ee7a vi khu\u1ea9n b\u1ec7nh, c\u00f4n tr\u00f9ng g\u00e2y h\u1ea1i v\u00e0 c\u1ecf t\u1ea1p, nh\u00e0 n\u01b0\u1edbc quy \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi h\u1ea1t gi\u1ed1ng, c\u00e2y gi\u1ed1ng v\u1eadn chuy\u1ec3n g\u1eedi trong n\u01b0\u1edbc \u0111\u1ec1u ph\u1ea3i ti\u1ebfn h\u00e0nh ki\u1ec3m d\u1ecbch, \u0111\u1ec3 di\u1ec7t c\u00f4n tr\u00f9ng g\u00e2y h\u1ea1i cho c\u00e2y n\u00f4ng nghi\u1ec7p, \u0111\u1ea3m b\u1ea3o an to\u00e0n s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p. \u0110\u1ed1i v\u1edbi nh\u1eefng h\u1ea1t gi\u1ed1ng, c\u00e2y gi\u1ed1ng v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m xu\u1ea5t nh\u1eadp kh\u1ea9u kh\u00e1c, c\u00e0ng c\u00f3 nh\u1eefng qui \u0111\u1ecbnh chi ti\u1ebft h\u01a1n, ph\u1ea3i \u0111\u1ea9y m\u1ea1nh ki\u1ec3m d\u1ecbch \u0111\u1ec3 ng\u0103n ch\u1eb7n tri\u1ec7t \u0111\u1ec3 s\u1ef1 l\u00e2y lan c\u00f4n tr\u00f9ng g\u00e2y b\u1ec7nh.<\/p>\n\n\n\n
Trong l\u1ecbch s\u1eed, v\u00ed d\u1ee5 do s\u1ef1 v\u1eadn chuy\u1ec3n m\u1eadu d\u1ecbch m\u00e0 khi\u1ebfn cho c\u00f4n tr\u00f9ng g\u00e2y b\u1ec7nh nguy hi\u1ec3m ho\u1eb7c c\u1ecf t\u1ea1p l\u00e2y lan r\u1ed9ng kh\u1eafp, g\u00e2y ra nh\u1eefng t\u1ed5n th\u1ea5t to l\u1edbn r\u1ea5t nhi\u1ec1u. V\u00ed d\u1ee5 n\u0103m 1860 Ph\u00e1p nh\u1eadp gi\u1ed1ng c\u00e2y nho t\u1eeb M\u1ef9, \u0111\u00e3 mang v\u00e0o n\u01b0\u1edbc m\u00ecnh lo\u00e0i s\u00e2u \u0111\u1ee5c r\u1ec5 nho, \u0111\u00e3 h\u1ee7y ho\u1ea1i h\u1ea7u h\u1ebft nh\u1eefng v\u01b0\u1eddn nho c\u1ee7a n\u01b0\u1edbc Ph\u00e1p. N\u0103m 1873, b\u1ec7nh mildew nho c\u1ee7a Anh lan sang Ph\u00e1p, khi\u1ebfn cho ng\u00e0nh s\u1ea3n xu\u1ea5t r\u01b0\u1ee3u nho c\u1ee7a n\u01b0\u1edbc Ph\u00e1p h\u1ea7u nh\u01b0 b\u1ecb \u0111\u00ecnh tr\u1ec7 to\u00e0n b\u1ed9, l\u1ea1i nh\u01b0 s\u00e2u g\u00e2y h\u1ea1i ch\u1ee7 y\u1ebfu c\u1ee7a c\u00e2y b\u00f4ng – s\u00e2u b\u00f4ng, ban \u0111\u1ea7u \u1ea5n \u0110\u1ed9 truy\u1ec1n sang Ai C\u1eadp, khi\u1ebfn cho v\u1ea3i b\u00f4ng c\u1ee7a Ai C\u1eadp t\u1ed5n th\u1ea5t tr\u00ean 80% trong v\u00e0i th\u1eadp k\u1ec9. Tr\u01b0\u1edbc n\u0103m 1908, s\u00e2u b\u00f4ng l\u1ea1i theo gi\u1ed1ng c\u00e2y b\u00f4ng t\u1eeb M\u1ef9 truy\u1ec1n v\u00e0o Trung Qu\u1ed1c, g\u00e2y h\u1ea1i nghi\u00eam tr\u1ecdng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y b\u00f4ng, g\u00e2y t\u1ed5n th\u1ea5t r\u1ea5t l\u1edbn. Th\u1eddi k\u00ec kh\u00e1ng chi\u1ebfn ch\u1ed1ng Nh\u1eadt, b\u1ec7nh khoai h\u00e0 c\u1ee7a c\u00e2y khoai lang do Nh\u1eadt B\u1ea3n truy\u1ec1n v\u00e0o Trung Qu\u1ed1c hi\u1ec7n nay \u0111\u00e3 lan sang r\u1ea5t nhi\u1ec1u t\u1ec9nh th\u00e0nh.<\/p>\n\n\n\n
Mu\u1ed1n kh\u1ed1ng ch\u1ebf v\u00e0 ti\u00eau di\u1ec7t c\u00f4n tr\u00f9ng g\u00e2y h\u1ea1i n\u00e0y ph\u1ea3i ti\u00eau hao kh\u00f4ng bi\u1ebft bao nhi\u00eau nh\u00e2n l\u1ef1c v\u00e0 c\u1ee7a c\u1ea3i. T\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 th\u1ea5y ki\u1ec3m d\u1ecbch th\u1ef1c v\u1eadt l\u00e0 m\u1ed9t c\u00f4ng t\u00e1c r\u1ea5t quan tr\u1ecdng.<\/p>\n","protected":false},"excerpt":{"rendered":"
Khi b\u1ea1n l\u1ea5y m\u1ed9t bao h\u1ea1t gi\u1ed1ng th\u1ef1c v\u1eadt, chu\u1ea9n b\u1ecb th\u00f4ng qua \u0111\u01b0\u1eddng b\u01b0u \u0111i\u1ec7n g\u1eedi cho b\u1ea1n c\u00f9ng h\u1ecdc hay b\u1ea1n th\u00e2n \u1edf n\u01a1i xa, nh\u00e2n vi\u00ean b\u01b0u \u0111i\u1ec7n s\u1ebd y\u00eau c\u1ea7u b\u1ea1n tr\u01b0\u1edbc ti\u00ean qua c\u01a1 quan ki\u1ec3m d\u1ecbch \u0111\u1ed9ng v\u1eadt, th\u1ef1c v\u1eadt ki\u1ec3m d\u1ecbch. Sau khi th\u00f4ng qua ki\u1ec3m d\u1ecbch, kh\u00f4ng […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,19],"tags":[],"class_list":["post-9808","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9808","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=9808"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9808\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}