{"id":7812,"date":"2021-04-27T18:11:03","date_gmt":"2021-04-27T11:11:03","guid":{"rendered":"http:\/\/hoinongdanhp.org.vn\/?p=7812"},"modified":"2021-04-27T18:11:03","modified_gmt":"2021-04-27T11:11:03","slug":"phong-tru-hieu-qua-sau-cuon-la-hai-lua","status":"publish","type":"post","link":"https:\/\/hoinongdanhp.org.vn\/index.php\/2021\/04\/27\/phong-tru-hieu-qua-sau-cuon-la-hai-lua\/","title":{"rendered":"Ph\u00f2ng tr\u1eeb hi\u1ec7u qu\u1ea3 s\u00e2u cu\u1ed1n l\u00e1 h\u1ea1i l\u00faa"},"content":{"rendered":"

V\u00f2ng \u0111\u1eddi s\u00e2u cu\u1ed1n l\u00e1 k\u00e9o d\u00e0i kho\u1ea3ng 30 \u2013 45 ng\u00e0y, v\u00f2ng \u0111\u1eddi c\u1ee7a s\u00e2u d\u00e0i hay ng\u1eafn c\u00f2n t\u00f9y v\u00e0o gi\u1ed1ng l\u00faa, ph\u00e2n b\u00f3n v\u00e0 th\u1eddi ti\u1ebft.<\/strong><\/p>\n

\"\"<\/p>\n

L\u00e1 l\u00faa b\u1ecb cu\u1ed1n, s\u00e2u non \u0103n bi\u1ec3u b\u00ec m\u1eb7t tr\u00ean v\u00e0 di\u1ec7p l\u1ee5c c\u1ee7a l\u00e1 d\u1ecdc theo g\u00e2n l\u00e1 t\u1ea1o th\u00e0nh nh\u1eefng v\u1ec7t tr\u1eafng d\u00e0i, c\u00e1c v\u1ec7t n\u00e0y c\u00f3 th\u1ec3 n\u1ed1i li\u1ec1n v\u1edbi nhau th\u00e0nh t\u1eebng m\u1ea3ng l\u00e0m gi\u1ea3m di\u1ec7n t\u00edch quang h\u1ee3p v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean l\u00e1 \u0111\u00f2ng ho\u1eb7c l\u00e1 c\u00f4ng n\u0103ng s\u1ebd l\u00e0m gi\u1ea3m n\u0103ng su\u1ea5t r\u00f5 r\u1ec7t.<\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i:\u00a0– Ng\u00e0i: m\u00e9p tr\u01b0\u1edbc c\u1ee7a c\u00e1nh tr\u01b0\u1edbc c\u00f3 m\u00e0u n\u00e2u v\u00e0ng, c\u00f3 hai v\u1ec7t xi\u00ean m\u00e0u n\u00e2u \u0111en t\u1eeb tr\u00ean m\u00e9p c\u00e1nh xu\u1ed1ng 2\/3 c\u00e1nh.<\/h2>\n

– Tr\u1ee9ng: H\u00ecnh b\u1ea7u d\u1ee5c c\u00f3 v\u00e2n m\u1ea1ng l\u01b0\u1edbi r\u1ea5t nh\u1ecf, \u0111\u1ebb t\u1eebng qu\u1ea3 \u1edf m\u1eb7t tr\u00ean v\u00e0 m\u1eb7t d\u01b0\u1edbi l\u00e1, tr\u1ee9ng m\u1edbi \u0111\u1ebb c\u00f3 m\u00e0u h\u01a1i \u0111\u1ee5c khi g\u1ea7n n\u1edf chuy\u1ec3n m\u00e0u ng\u00e0 v\u00e0ng.<\/p>\n

– S\u00e2u non: S\u00e2u non c\u00f3 5 tu\u1ed5i, m\u1edbi m\u1edf m\u00e0u tr\u1eafng trong, \u0111\u1ea7u c\u00f3 m\u00e0u n\u00e2u \u0111en, khi l\u1edbn c\u01a1 th\u1ec3 chuy\u1ec3n m\u00e0u xanh l\u00e1 m\u1ea1 – m\u00e0u v\u00e0ng, \u0111\u1ea7u m\u00e0u n\u00e2u s\u00e1ng.<\/p>\n

– Nh\u1ed9ng c\u00f3\u00a0 m\u00e0u\u00a0 v\u00e0ng – n\u00e2u \u0111\u1eadm, th\u01b0\u1eddng th\u1ea5y trong l\u00e1 b\u1ecb cu\u1ed1n.<\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc, sinh th\u00e1i v\u00e0 g\u00e2y h\u1ea1i:<\/h2>\n

* V\u00f2ng \u0111\u1eddi:<\/h2>\n

V\u00f2ng \u0111\u1eddi s\u00e2u cu\u1ed1n l\u00e1 nh\u1ecf t\u1eeb 28 – 36 ng\u00e0y.<\/p>\n

– Th\u1eddi gian \u0111\u1ebb tr\u1ee9ng:\u00a0 6 – 7 ng\u00e0y;<\/p>\n

– S\u00e2u non: 14 – 16 ng\u00e0y;<\/p>\n

– Nh\u1ed9ng: 6 – 7 ng\u00e0y;<\/p>\n

– Tr\u01b0\u1edfng th\u00e0nh s\u1ed1ng: 2 – 6 ng\u00e0y.<\/p>\n

* \u0110\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc v\u00e0 g\u00e2y h\u1ea1i:<\/h2>\n

Ng\u00e0i tr\u01b0\u1edfng th\u00e0nh ho\u1ea1t \u0111\u1ed9ng \u0111\u1ebb tr\u1ee9ng v\u1ec1 \u0111\u00eam, ban ng\u00e0y \u1ea9n n\u1ea5p, c\u00f3 xu t\u00ednh m\u1ea1nh v\u1edbi \u00e1nh s\u00e1ng, con c\u00e1i m\u1ea1nh h\u01a1n con \u0111\u1ef1c. Ng\u00e0i th\u01b0\u1eddng t\u00ecm nh\u1eefng ru\u1ed9ng xanh t\u1ed1t \u0111\u1ec3 \u0111\u1ebb tr\u1ee9ng, m\u1ed7i con c\u00e1i c\u00f3 th\u1ec3 \u0111\u1ebb tr\u00ean 100 qu\u1ea3 tr\u1ee9ng, r\u1ea3i r\u00e1c tr\u00ean l\u00e1 l\u00faa.<\/p>\n

S\u00e2u non c\u00f3 5 tu\u1ed5i: Tu\u1ed5i 1 r\u1ea5t linh ho\u1ea1t c\u00f3 th\u1ec3 b\u00f2 kh\u1eafp tr\u00ean l\u00e1, chui v\u00e0o l\u00e1 n\u00f5n, m\u1eb7t trong b\u1eb9 l\u00e1 ho\u1eb7c bao l\u00e1 c\u0169; tu\u1ed5i 2, 3 tr\u1edf \u0111i nh\u1ea3 t\u01a1 \u0111\u1ec3 kh\u00e2u 2 m\u00e9p l\u00e1 cu\u1ed1n th\u00e0nh t\u1ed5 n\u1eb1m trong \u0111\u00f3 g\u00e2y h\u1ea1i. S\u00e2u c\u00f3 kh\u1ea3 n\u0103ng di chuy\u1ec3n ra kh\u1ecfi bao c\u0169 \u0111\u1ec3 ph\u00e1 h\u1ea1i l\u00e1 m\u1edbi, m\u1ed7i con s\u00e2u non c\u00f3 th\u1ec3 ph\u00e1 h\u1ea1i t\u1eeb 5 -9 l\u00e1, th\u1eddi gian di chuy\u1ec3n th\u01b0\u1eddng v\u00e0o bu\u1ed5i chi\u1ec1u (t\u1eeb 6 gi\u1edd – 9 gi\u1edd t\u1ed1i), ng\u00e0y tr\u1eddi m\u01b0a ho\u1eb7c r\u00e2m m\u00e1t th\u00ec c\u00f3 th\u1ec3 di chuy\u1ec3n b\u1ea5t c\u1ee9 l\u00fac n\u00e0o trong ng\u00e0y. S\u00e2u non \u0111\u1eaby s\u1ee9c chuy\u1ec3n m\u00e0u v\u00e0ng h\u1ed3ng chui ra kh\u1ecfi bao b\u00f2 xu\u1ed1ng g\u1ed1c l\u00faa, b\u1eb9 l\u00e1 d\u1ec7t k\u00e9n m\u1ecfng ho\u00e1 nh\u1ed9ng ho\u1eb7c ho\u00e1 nh\u1ed9ng ngay trong bao c\u0169.<\/span><\/p>\n

Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb:<\/h2>\n

– Bi\u1ec7n ph\u00e1p canh t\u00e1c, k\u1ef9 thu\u1eadt:<\/h2>\n

+ V\u1ec7 sinh \u0111\u1ed3ng ru\u1ed9ng, l\u00e0m s\u1ea1ch c\u1ecf d\u1ea1i,<\/p>\n

+ \u0110i\u1ec1u ch\u1ec9nh m\u1eadt \u0111\u1ed9 c\u1ea5y ph\u00f9 h\u1ee3p,<\/p>\n

+ B\u00f3n ph\u00e2n c\u00e2n \u0111\u1ed1i, h\u1ee3p l\u00fd, \u0111\u1eb7c bi\u1ec7t b\u00f3n ph\u00e2n \u0111\u1ea1m v\u1eeba ph\u1ea3i.<\/p>\n

– Bi\u1ec7n ph\u00e1p sinh h\u1ecdc:<\/h2>\n

+ Ch\u00fa \u00fd b\u1ea3o v\u1ec7 ho\u1eb7c b\u1ed5 sung thi\u00ean \u0111\u1ecbch nh\u01b0 ong m\u1eaft \u0111\u1ecf Trichogramma sp., n\u1ea5m\u2026 K\u00fd sinh thi\u00ean \u0111\u1ecbch c\u1ee7a s\u00e2u cu\u1ed1n l\u00e1 nh\u1ecf r\u1ea5t \u0111a d\u1ea1ng t\u1eeb c\u00e1c lo\u00e0i ong, n\u1ea5m, c\u00e1c lo\u00e0i \u0103n th\u1ecbt\u2026<\/p>\n

– Bi\u1ec7n ph\u00e1p h\u00f3a h\u1ecdc:<\/h2>\n

– D\u00f9ng c\u00e1c lo\u1ea1i thu\u1ed1c Padan 95SP, Regent 800WP, Sumithion 50EC, Karate 2.5EC… phun khi s\u00e2u c\u00f2n tu\u1ed5i 1-2, s\u00e2u \u0111\u00e3 l\u1edbn c\u1ea7n ph\u00e1 bao l\u00e1 tr\u01b0\u1edbc khi phun m\u1edbi c\u00f3 hi\u1ec7u qu\u1ea3.<\/p>\n

– Th\u1eddi \u0111i\u1ec3m phun thu\u1ed1c th\u00edch h\u1ee3p nh\u1ea5t:<\/h2>\n

+ S\u1ef1 ph\u00e1t d\u1ee5c c\u1ee7a s\u00e2u cu\u1ed1n l\u00e1 nh\u1ecf ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n c\u1ee7a t\u1eebng tr\u00e0 l\u00faa, tr\u00ean c\u00f9ng m\u1ed9t c\u00e1nh \u0111\u1ed3ng c\u00f3 nhi\u1ec1u tr\u00e0 l\u00faa c\u1ea5y \u1edf c\u00e1c th\u1eddi v\u1ee5 kh\u00e1c nhau th\u00ec tr\u1ee9ng s\u00e2u cu\u1ed1n l\u00e1 nh\u1ecf n\u1edf r\u1ed9 c\u0169ng \u1edf c\u00e1c th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau. Nh\u1eefng ru\u1ed9ng l\u00faa c\u1ea5y tr\u01b0\u1edbc, nhanh t\u1ed1t; ru\u1ed9ng l\u00faa th\u1eeba \u0111\u1ea1m, l\u00e1 xanh \u0111en, nh\u1eefng ru\u1ed9ng g\u1ea7n khu d\u00e2n c\u01b0, g\u1ea7n \u0111\u01b0\u1eddng qu\u1ed1c l\u1ed9, khi tr\u1eddi t\u1ed1i s\u1ebd c\u00f3 nhi\u1ec1u \u00e1nh s\u00e1ng n\u00ean m\u1eadt \u0111\u1ed9 b\u01b0\u1edbm s\u1ebd cao h\u01a1n, tr\u1ee9ng s\u00e2u c\u0169ng n\u1edf s\u1edbm h\u01a1n.<\/p>\n

+ Phun sau khi ng\u1edbt b\u01b0\u1edbm 2 – 3 ng\u00e0y (th\u0103m \u0111\u1ed3ng 2 ng\u00e0y\/l\u1ea7n, xua ng\u1ecdn l\u00e1 l\u00faa ki\u1ec3m tra th\u1ea5y m\u1eadt \u0111\u1ed9 b\u01b0\u1edbm gi\u1ea3m \u0111\u1ed9t ng\u1ed9t so v\u1edbi th\u1eddi \u0111i\u1ec3m b\u01b0\u1edbm ra r\u1ed9). Khi l\u00faa xu\u00f4i tr\u00e1i, s\u00e2u cu\u1ed1n l\u00e1 nh\u1ecf kh\u00f4ng ph\u00e1 h\u1ea1i n\u1eefa m\u1eb7c d\u00f9 m\u1eadt \u0111\u1ed9 b\u01b0\u1edbm r\u1ea5t cao tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n

+ Ch\u1ec9 phun tr\u1eeb s\u00e2u Cu\u1ed1n l\u00e1 nh\u1ecf tr\u00ean nh\u1eefng di\u1ec7n t\u00edch c\u00f3 m\u1eadt\u00a0\u0111\u1ed9 s\u00e2u non\u00a0\u0111\u1ebfn ng\u01b0\u1ee1ng ph\u00f2ng tr\u1eeb (t\u1eeb 50 con\/m2 tr\u1edf l\u00ean\u00a0\u0111\u1ed1i v\u1edbi giai\u00a0\u0111o\u1ea1n\u00a0\u0111\u1ebb nh\u00e1nh,\u00a0t\u1eeb 20 con\/m2 tr\u1edf l\u00ean\u00a0\u0111\u1ed1i v\u1edbi giai\u00a0\u0111o\u1ea1n l\u00e0m\u00a0\u0111\u00f2ng).<\/p>\n

 <\/p>\n

Tr\u01b0\u01a1ng Th\u1ecb L\u00e0nh \u2013 Trung t\u00e2m TTDN&HTND. S\u01b0u t\u1ea7m http:\/\/camnangcaytrong.com\/sau-cuon-la-nho-hai-lua-sd6.html<\/strong><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

V\u00f2ng \u0111\u1eddi s\u00e2u cu\u1ed1n l\u00e1 k\u00e9o d\u00e0i kho\u1ea3ng 30 \u2013 45 ng\u00e0y, v\u00f2ng \u0111\u1eddi c\u1ee7a s\u00e2u d\u00e0i hay ng\u1eafn c\u00f2n t\u00f9y v\u00e0o gi\u1ed1ng l\u00faa, ph\u00e2n b\u00f3n v\u00e0 th\u1eddi ti\u1ebft. L\u00e1 l\u00faa b\u1ecb cu\u1ed1n, s\u00e2u non \u0103n bi\u1ec3u b\u00ec m\u1eb7t tr\u00ean v\u00e0 di\u1ec7p l\u1ee5c c\u1ee7a l\u00e1 d\u1ecdc theo g\u00e2n l\u00e1 t\u1ea1o th\u00e0nh nh\u1eefng v\u1ec7t tr\u1eafng d\u00e0i, […]<\/p>\n","protected":false},"author":12,"featured_media":7813,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[29,27,25,30],"tags":[],"class_list":{"0":"post-7812","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-hoat-dong-hoi","8":"category-khoa-hoc-ky-thuat","9":"category-nha-nong-can-biet","10":"category-tin-tuc-su-kien"},"_links":{"self":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/posts\/7812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7812"}],"version-history":[{"count":0,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/posts\/7812\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/media\/7813"}],"wp:attachment":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}