{"id":641,"date":"2026-08-16T00:14:03","date_gmt":"2026-08-15T17:14:03","guid":{"rendered":"https:\/\/canhtacthongminh.vn\/?p=641"},"modified":"2026-08-16T00:15:01","modified_gmt":"2026-08-15T17:15:01","slug":"thuc-trang-rung-qua-non-ca-phe-dau-mua-mua-va-cach-khac-phuc","status":"publish","type":"post","link":"https:\/\/canhtacthongminh.vn\/index.php\/2026\/08\/16\/thuc-trang-rung-qua-non-ca-phe-dau-mua-mua-va-cach-khac-phuc\/","title":{"rendered":"TH\u1ef0C TR\u1ea0NG R\u1ee4NG QU\u1ea2 NON C\u00c0 PH\u00ca \u0110\u1ea6U M\u00d9A M\u01afA V\u00c0 C\u00c1CH KH\u1eaeC PH\u1ee4C"},"content":{"rendered":"\n

V\u00e0o \u0111\u1ea7u v\u00e0 gi\u1eefa m\u00f9a m\u01b0a, qu\u1ea3 c\u00e0 ph\u00ea \u0111ang \u1edf giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n r\u1ea5t nhanh v\u1ec1 k\u00edch th\u01b0\u1edbc qu\u1ea3, m\u1eadt \u0111\u1ed9 qu\u1ea3\/ch\u00f9m kh\u00e1 d\u00e0y. Tuy nhi\u00ean, \u00e1p l\u1ef1c v\u1ec1 th\u1eddi ti\u1ebft, n\u1ea5m b\u1ec7nh v\u00e0 s\u00e2u r\u1ea7y ph\u00e1t tri\u1ec3n m\u1ea1nh \u0111ang l\u00e0m cho qu\u1ea3 c\u00e0 ph\u00ea non r\u1ee5ng nhi\u1ec1u, \u0111e d\u1ecda tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng c\u00e0 ph\u00ea sau n\u00e0y.<\/strong><\/p>\n\n\n\n

1.Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch ph\u00f2ng tr\u1eeb chung:<\/strong>
-S\u1ef1 chuy\u1ec3n bi\u1ebfn t\u1eeb n\u1eafng n\u00f3ng k\u00e9o d\u00e0i sang c\u00e1c c\u01a1n m\u01b0a \u0111\u1ea7u m\u00f9a g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng s\u1ed1c sinh l\u00fd, khi\u1ebfn c\u00e2y kh\u00f4ng k\u1ecbp th\u00edch nghi v\u00e0 r\u1ee5ng qu\u1ea3 h\u00e0ng lo\u1ea1t.
-C\u00e2y thi\u1ebfu h\u1ee5t c\u00e1c nguy\u00ean t\u1ed1 trung v\u00e0 vi l\u01b0\u1ee3ng (\u0111\u1eb7c bi\u1ec7t l\u00e0 Canxi, Bo, Kali) khi\u1ebfn cu\u1ed1ng qu\u1ea3 y\u1ebfu (c\u1ea5u tr\u00fac t\u1ea7ng r\u1eddi l\u1ecfng l\u1ebbo) , d\u1ec5 r\u1ee5ng khi g\u1eb7p t\u00e1c \u0111\u1ed9ng c\u1ee7a gi\u00f3, m\u01b0a
-V\u00e0o \u0111\u1ea7u m\u00f9a m\u01b0a \u0111\u1ed9 \u1ea9m v\u01b0\u1eddn c\u00e2y cao l\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00fd t\u01b0\u1edfng cho n\u1ea5m b\u1ec7nh
-V\u01b0\u1eddn c\u00e0 ph\u00ea qu\u00e1 r\u1eadm r\u1ea1p, \u00edt th\u00f4ng tho\u00e1ng do kh\u00f4ng rong t\u1ec9a c\u00e1c c\u00e0nh c\u1ee7a c\u00e2y che b\u00f3ng v\u00e0 c\u00e2y tr\u1ed3ng xen, kh\u00f4ng \u0111\u00e1nh ch\u1ed3i v\u01b0\u1ee3t k\u1ecbp th\u1eddi, \u0111\u1ec3 c\u1ecf tr\u00ean v\u01b0\u1eddn qu\u00e1 t\u1ed1t kh\u00f4ng c\u1eaft k\u1ecbp th\u1eddi, ho\u1eb7c b\u1ed9 r\u1ec5 b\u1ecb suy y\u1ebfu trong m\u00f9a kh\u00f4 ch\u01b0a ph\u1ee5c h\u1ed3i k\u1ecbp ( ra r\u1ec5 non m\u1edbi \u0111\u1ec3 h\u00fat dinh d\u01b0\u1ee1ng ) , l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 d\u01b0\u1ee1ng ch\u1ea5t.
-Th\u01b0\u1eddng xuy\u00ean th\u0103m v\u01b0\u1eddn, ph\u00e1t hi\u1ec7n c\u00e1c v\u1ea5n \u0111\u1ec1 b\u1ea5t l\u1ee3i c\u1ee7a v\u01b0\u1eddn c\u00e2y nh\u01b0: v\u01b0\u1eddn r\u1eadm r\u1ea1p, c\u00e2y che b\u00f3ng, ch\u1eafn gi\u00f3 ch\u01b0a rong t\u1ec9a c\u00e0nh, c\u1ecf ch\u01b0a c\u1eaft ch\u1eeba g\u1ed1c, b\u1ed3n c\u00e0 ph\u00ea b\u1ecb \u0111\u1ecdng n\u01b0\u1edbc, to\u00e0n v\u01b0\u1eddn c\u00f3 m\u1ef1c n\u01b0\u1edbc ng\u1ea7m n\u00f4ng, kh\u1ea3 n\u0103ng tho\u00e1t n\u01b0\u1edbc k\u00e9m\u2026 c\u00e2y c\u00f3 xu\u1ea5t hi\u1ec7n c\u00e1c v\u1ebft b\u1ec7nh nguy hi\u1ec3m nh\u01b0 v\u00e0ng l\u00e1, th\u1ed1i r\u1ec5, g\u1ec9 s\u1eaft, th\u00e1n th\u01b0, c\u00e1c c\u00f4n tr\u00f9ng ch\u00edch h\u00fat nh\u01b0 r\u1ea7y r\u1ec7p\u2026\u0111\u1ec3 c\u00f3 bi\u1ec7n ph\u00e1p x\u1eed l\u00fd<\/p>\n\n\n\n

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R\u1ee5ng qu\u1ea3 non c\u00e0 ph\u00ea \u0111\u1ea7u m\u00f9a m\u01b0a<\/em><\/figcaption><\/figure>\n\n\n\n
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Th\u1ed1i c\u00e0nh, qu\u1ea3 c\u00e0 ph\u00ea \u0111\u1ea7u m\u00f9a m\u01b0a<\/em><\/figcaption><\/figure>\n\n\n\n

2. C\u00e1c lo\u1ea1i b\u1ec7nh g\u00e2y h\u1ea1i ch\u00ednh cho c\u00e0 ph\u00ea m\u00f9a m\u01b0a v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb<\/strong>
2.1 B\u1ec7nh v\u00e0ng l\u00e1 th\u1ed1i r\u1ec5<\/strong>
-B\u1ec7nh v\u00e0ng l\u00e1, th\u1ed1i r\u1ec5 do tuy\u1ebfn tr\u00f9ng (Pratylenchus coffeae) k\u1ebft h\u1ee3p v\u1edbi n\u1ea5m h\u1ea1i r\u1ec5 (Fusarium spp., Rhizoctonia spp.) g\u00e2y h\u1ea1i.
-Tr\u00ean c\u00e2y c\u00e0 ph\u00ea kinh doanh, l\u00e1 chuy\u1ec3n sang m\u00e0u v\u00e0ng, r\u1ec5 t\u01a1 b\u1ecb th\u1ed1i, c\u00e2y sinh tr\u01b0\u1edfng ch\u1eadm, r\u1ee5ng qu\u1ea3 nhi\u1ec1u v\u00e0o \u0111\u1ea7u m\u00f9a m\u01b0a v\u00e0 cho n\u0103ng su\u1ea5t th\u1ea5p
C\u1ea7n quan s\u00e1t k\u1ef9 k\u1ebbo nh\u1ea7m v\u1edbi tri\u1ec7u ch\u1ee9ng thi\u1ebfu \u0111\u1ea1m, \u00fang c\u1ee5c b\u1ed9, tuy\u1ebfn tr\u00f9ng\u2026 \u0111\u1ec3 ch\u1ecdn \u0111\u00fang thu\u1ed1c v\u00e0 bi\u1ec7n ph\u00e1p canh t\u00e1c.<\/p>\n\n\n\n

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V\u00e0ng l\u00e1 do th\u1ed1i r\u1ec5<\/em><\/figcaption><\/figure>\n\n\n\n
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Tuy\u1ebfn tr\u00f9ng h\u1ea1i r\u1ec5\u00a0<\/em><\/figcaption><\/figure>\n\n\n\n
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Th\u1ed1i r\u1ec5 c\u00e0 ph\u00ea<\/em><\/figcaption><\/figure>\n\n\n\n

Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb:
-T\u1ea1o r\u00e3nh tho\u00e1t n\u01b0\u1edbc t\u1ed1t cho c\u1ea3 v\u01b0\u1eddn, t\u1ec9a c\u00e0nh t\u1ea1o t\u00e1n, v\u1eb7t ch\u1ed3i v\u01b0\u1ee3t, c\u00e0nh t\u0103m, c\u00e0nh s\u00e2u b\u1ec7nh kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ra tr\u00e1i, rong t\u1ec9a c\u00e0nh cho c\u00e2y che b\u00f3ng, ch\u1eafn gi\u00f3 h\u1ee3p l\u00fd.\u2026 cho v\u01b0\u1eddn th\u00f4ng tho\u00e1ng, ph\u00e1t c\u1ecf ch\u1eeba g\u1ed1c t\u1eeb 2-3 cm, m\u1ee5c ti\u00eau gi\u1ea3m \u0111\u1ed9 \u1ea9m cho sinh th\u00e1i v\u01b0\u1eddn c\u00e2y
-Ng\u01b0ng ngay vi\u1ec7c b\u00f3n ph\u00e2n c\u00f3 ch\u1ee9a \u0111\u1ea1m cao qua g\u1ed1c, qua l\u00e1 c\u00f3 ch\u1ee9a \u0111\u1ea1m cao, s\u1ebd l\u00e0m b\u1ec7nh n\u1eb7ng th\u00eam,
– B\u00f3n b\u1ed5 sung t\u1eeb 200-300 kg \u0110\u1ea7u Tr\u00e2u c\u00e2n b\u1eb1ng \u0111\u1ea5t \/ha \u0111\u1ec3 b\u1ed5 sung canxi, magie v\u00e0 vi l\u01b0\u1ee3ng (Canxi (Ca): 18%; Magie (Mg): 6%; L\u01b0u hu\u1ef3nh (S): 1%; K\u1ebdm (Zn): 600 ppm; (Cu): 100 ppm; Bo :300 ppm), s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n l\u00e1 c\u00f3 ch\u1ee9a c\u00e1c ch\u1ebf ph\u1ea9m Canxi, Bo, Kali h\u1eefu hi\u1ec7u cho c\u00e2y h\u1ea5p thu \u0111\u01b0\u1ee3c ngay. \u0110\u1eb7c bi\u1ec7t c\u00e1c lo\u1ea1i ph\u00e2n b\u00f3n l\u00e1 c\u00f3 nguy\u00ean t\u1ed1 vi l\u01b0\u1ee3ng (K\u1ebdm, Bo, Canxi) \u0111\u1ec3 t\u0103ng \u0111\u1ed9 dai cho cu\u1ed1ng qu\u1ea3.
-S\u1eed d\u1ee5ng ngay ph\u00e2n b\u00f3n h\u1eefu c\u01a1 \u0110\u1ea7u Tr\u00e2u D\u01b0\u1ee1ng r\u1ec5-T\u1ed1t c\u00e2y (HC: 63%; Nts: 2,4%; P2O5dt: 1,8%; K2Ohh: 2,2%; t\u1ed5ng AH, AF: 3%; C\/N: 12; pHH2O: 6; \u0111\u1ed9 \u1ea9m: 25%) c\u00f3 ch\u1ee9a vi sinh v\u1eadt ch\u1ee9c n\u0103ng (17% Ca ; 3% Mg ; 1000 ppm vi l\u01b0\u1ee3ng c\u00e1c lo\u1ea1i; Vi sinh v\u1eadt ph\u00e2n gi\u1ea3i l\u00e2n kh\u00f3 ti\u00eau: 1x 104 CFU\/g; Vi sinh v\u1eadt ph\u00e2n gi\u1ea3i xenlulo: 1x 104 CFU\/g; Vi sinh v\u1eadt c\u1ed1 \u0111\u1ecbnh N: 1x 104 CFU\/g) h\u1ea1n ch\u1ebf t\u00e1c h\u1ea1i c\u1ee7a n\u1ea5m g\u00e2y b\u1ec7nh trong \u0111\u1ea5t v\u00f9ng r\u1ec5. l\u01b0\u1ee3ng b\u00f3n t\u1eeb 1-2 kg \/c\u00e2y, r\u1ea3i \u0111\u1ec1u trong v\u00f9ng r\u1ec5, ch\u1ec9 t\u01b0\u1edbi cho tan ph\u00e2n khi kh\u00f4ng c\u00f3 m\u01b0a.
-Kh\u00f4ng \u0111\u1ec3 n\u01b0\u1edbc tr\u00e0n t\u1eeb b\u1ed3n c\u00e2y n\u00e0y sang c\u00e2y kh\u00e1c, nguy c\u01a1 lan r\u1ed9ng c\u1ee7a b\u1ec7nh r\u1ea5t l\u1edbn
-S\u1eed d\u1ee5ng thu\u1ed1c sinh h\u1ecdc tr\u1eeb tuy\u1ebfn tr\u00f9ng k\u1ebft h\u1ee3p v\u1edbi thu\u1ed1c sinh h\u1ecdc tr\u1eeb n\u1ea5m nh\u01b0: Paecilomyces lilacinus (Palila 500 WP); Chitosan (Jolle 1 SL, 40 SL, 50 WP; Kaido 50 SL, 50 WP); Cytokinin (Zeatin; Geno 2005 2 SL); Abamectin (Tervigo 020 SC); Clinoptilolite (Map logic 90 WP). Thu\u1ed1c sinh h\u1ecdc tr\u1eeb n\u1ea5m nh\u01b0 Trichoderma viride (Biobus 1.00 WP); Trichoderma spp.
– S\u1eed d\u1ee5ng c\u00e1c ch\u1ebf ph\u1ea9m sinh h\u1ecdc c\u1ee7a Cty B\u00ecnh \u0110i\u1ec1n L\u00e2m \u0110\u1ed3ng nh\u01b0 BLC 11, Bioplant c\u1ee7a canh t\u00e1c B\u00ecnh \u0110i\u1ec1n Mekong
-Bi\u1ec7n ph\u00e1p h\u00f3a h\u1ecdc: X\u1eed l\u00fd c\u00e2y m\u1edbi b\u1ecb nhi\u1ec5m b\u1ec7nh v\u00e0 c\u00e2y xung quanh v\u00f9ng b\u1ecb g\u00e2y h\u1ea1i b\u1eb1ng m\u1ed9t trong c\u00e1c lo\u1ea1i thu\u1ed1c tr\u1eeb tuy\u1ebfn tr\u00f9ng, sau \u0111\u00f3 x\u1eed l\u00fd thu\u1ed1c tr\u1eeb n\u1ea5m b\u1ec7nh. N\u00ean x\u1eed l\u00fd thu\u1ed1c 2 l\u1ea7n c\u00e1ch nhau 15-30 ng\u00e0y \u0111\u1ec3 ph\u00f2ng v\u00e0 c\u00f4 l\u1eadp ngu\u1ed3n b\u1ec7nh. Khi x\u1eed l\u00fd thu\u1ed1c y\u00eau c\u1ea7u \u0111\u1ea5t ph\u1ea3i \u0111\u1ee7 \u0111\u1ed9 \u1ea9m. N\u1ebfu t\u01b0\u1edbi thu\u1ed1c trong m\u00f9a kh\u00f4 ph\u1ea3i t\u01b0\u1edbi n\u01b0\u1edbc tr\u01b0\u1edbc.
-D\u00f9ng thu\u1ed1c tr\u1eeb n\u1ea5m: Copper Hydroxide (DuPont\u2122 Kocide\u00ae 53.8 WG); Cuprous Oxide (Norshield 58WP); Cuprous oxide 60% + Dimethomorph 12% (Eddy 72WP), Validad, TEBaz.
2.2 B\u1ec7nh th\u00e1n th\u01b0:<\/strong>
Do n\u1ea5m Colletotrichum Cofeanum Noack; ph\u00e1t tri\u1ec3n m\u1ea1nh trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt v\u1edbi nhi\u1ec7t \u0111\u1ed9 th\u1ea5p chuy\u1ec3n t\u1eeb m\u00f9a n\u1eafng sang m\u00f9a m\u01b0a, sau nh\u1eefng c\u01a1n m\u01b0a l\u1edbn \u0111\u1ea7u m\u00f9a. B\u1ec7nh b\u1eaft \u0111\u1ea7u b\u1eb1ng v\u1ebft n\u00e2u \u0111en l\u00f5m \u1edf cu\u1ed1ng qu\u1ea3, c\u00e0nh, l\u00e1, lan r\u1ed9ng l\u00e0m qu\u1ea3 kh\u00f4 \u0111en, r\u1ee5ng s\u1edbm, c\u00e0nh ch\u1ebft, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn n\u0103ng su\u1ea5t<\/p>\n\n\n\n

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Kh\u00f4 c\u00e0nh kh\u00f4 qu\u1ea3 do th\u00e1n th\u01b0<\/em><\/figcaption><\/figure>\n\n\n\n

Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb:
-Qu\u1ea3n l\u00fd sinh th\u00e1i v\u01b0\u1eddn c\u00e2y nh\u01b0 \u0111\u1ed1i v\u1edbi b\u1ec7nh V\u00e0ng l\u00e1 th\u1ed1i r\u1ec5, tuy nhi\u00ean \u0111\u00e2y l\u00e0 lo\u1ea1i n\u1ea5m ph\u00e1t tri\u1ec3n tr\u00ean b\u1ed9 l\u00e1 v\u00e0 c\u00e0nh, qu\u1ea3 n\u00ean c\u1ea7n \u00e1p d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt th\u00eam nh\u01b0 sau:
-Ng\u01b0ng s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i ph\u00e2n b\u00f3n c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u0111\u1ea1m cao, t\u1eadp trung c\u00e1c lo\u1ea1i ph\u00e2n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu cho c\u00e2y gi\u1ea3m r\u1ee5ng tr\u00e1i nh\u01b0 ph\u00e2n b\u00f3n l\u00e1 ch\u1ee9a Canxi, Bo, vi l\u01b0\u1ee3ng th\u00edch h\u1ee3p trong \u0111\u00f3 c\u00f3 y\u1ebfu t\u1ed1 \u0111\u1ed3ng c\u0169ng l\u00e0m gi\u1ea3m ph\u00e1t tri\u1ec3n c\u1ee7a n\u1ea5m b\u1ec7nh \u0111\u00e1ng k\u1ec3
-S\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i thu\u1ed1c c\u00f3 ho\u1ea1t ch\u1ea5t tr\u1ecb b\u1ec7nh th\u00e1n th\u01b0 tr\u00ean c\u00e2y c\u00e0 ph\u00ea nh\u01b0 Azoxystrobin + Difenoconazole; Copper Hydroxide; Difenoconazole + Propiconazole…
2.3 B\u1ec7nh g\u1ec9 s\u1eaft<\/strong>
Do n\u1ea5m Hemileia vastatrix g\u00e2y ra, n\u1ea5m n\u00e0y ph\u00e1t tri\u1ec3n m\u1ea1nh trong \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed9 \u1ea9m v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao; \u0111\u1ea7u ti\u00ean xu\u1ea5t hi\u1ec7n nh\u1eefng ch\u1ea5m nh\u1ecf m\u00e0u v\u00e0ng l\u1ee3t \u1edf m\u1eb7t d\u01b0\u1edbi l\u00e1, sau \u0111\u00f3, c\u00e1c ch\u1ea5m n\u00e0y lan d\u1ea7n v\u00e0 xu\u1ea5t hi\u1ec7n nh\u1eefng b\u1ed9t m\u00e0u v\u00e0ng cam, \u0111\u00f3 l\u00e0 b\u00e0o t\u1eed c\u1ee7a n\u1ea5m g\u1ec9 s\u1eaft. C\u00e1c v\u1ebft b\u1ec7nh n\u00e0y li\u00ean k\u1ebft v\u1edbi nhau th\u00e0nh c\u00e1c v\u1ebft ch\u00e1y l\u1edbn, l\u00e0m l\u00e1 r\u1ee5ng
N\u1ea5m g\u1ec9 s\u1eaft th\u01b0\u1eddng lan truy\u1ec1n qua gi\u00f3 v\u00e0 m\u01b0a, \u0111\u1eb7c bi\u1ec7t \u1edf c\u00e1c v\u01b0\u1eddn c\u00e0 ph\u00ea kh\u00f4ng \u0111\u01b0\u1ee3c ch\u0103m s\u00f3c \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n

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B\u1ec7nh r\u1ec9 s\u1eaft tr\u00ean l\u00e1 c\u00e0 ph\u00ea<\/em><\/figcaption><\/figure>\n\n\n\n

Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb:
-\u00c1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p v\u1ec7 sinh v\u01b0\u1eddn c\u00e2y chung tr\u01b0\u1edbc khi v\u00e0o m\u00f9a m\u01b0a, t\u1ea1o th\u00f4ng tho\u00e1ng v\u01b0\u1eddn c\u00e2y v\u00e0 mang c\u00e1c c\u00e0nh, l\u00e1 ch\u1ee9a m\u1ea7m b\u1ec7nh ra kh\u1ecfi v\u01b0\u1eddn \u0111\u1ec3 ti\u00eau h\u1ee7y.
-Khi ph\u00e1t hi\u1ec7n c\u00e0nh, qu\u1ea3 b\u1ecb n\u1ea5m (nh\u01b0 n\u1ea5m h\u1ed3ng c\u00f3 l\u1edbp ph\u1ea5n m\u00e0u h\u1ed3ng), c\u1ea7n c\u1eaft b\u1ecf mang ra kh\u1ecfi v\u01b0\u1eddn v\u00e0 ti\u00eau h\u1ee7y ngay \u0111\u1ec3 tr\u00e1nh ngu\u1ed3n b\u1ec7nh l\u00e2y lan.
-Phun ph\u00f2ng ng\u1eeba s\u1edbm v\u00e0o \u0111\u1ea7u m\u00f9a m\u01b0a b\u1eb1ng c\u00e1c lo\u1ea1i thu\u1ed1c g\u1ed1c \u0111\u1ed3ng theo h\u01b0\u1edbng d\u1eabn c\u1ee7a s\u1ea3n ph\u1ea9m), s\u1eed d\u1ee5ng ngay m\u1ed9t s\u1ed1 lo\u1ea1i thu\u1ed1c c\u00f3 ho\u1ea1t ch\u1ea5t \u0111\u1eb7c tr\u1ecb n\u1ea5m (nh\u01b0 Hexaconazole, Diniconazole; Difenoconazole +Propiconazole; Hexaconazole; Propiconazole, Tebuconazole + Trifloxystrobin\u2026
-C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 ch\u1ee9a n\u1ea5m \u0111\u1ed1i kh\u00e1ng Trichoderma viride \u0111\u1ec3 x\u1eed l\u00fd n\u1ea5m h\u1ea1i trong \u0111\u1ea5t, phun l\u00ean l\u00e1 h\u1ea1n ch\u1ebf s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a n\u1ea5m b\u1ec7nh tr\u00ean c\u00e2y.
L\u01b0u \u00fd: phun \u01b0\u1edbt \u0111\u1ec1u to\u00e0n t\u00e1n c\u00e2y, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c k\u1ebd qu\u1ea3, ch\u00f9m qu\u1ea3.
2.4 B\u1ec7nh n\u1ea5m h\u1ed3ng (Corticium salmonicolor Berkeley & Broome)<\/strong>
B\u1ec7nh g\u00e2y h\u1ea1i ch\u1ee7 y\u1ebfu \u1edf c\u00e0nh n\u1eb1m \u1edf ph\u1ea7n tr\u00ean c\u1ee7a t\u00e1n, g\u1ea7n n\u01a1i ph\u00e2n c\u00e0nh v\u00e0 ph\u1ea7n ng\u1ecdn c\u1ee7a c\u00e2y. B\u1ec7nh th\u01b0\u1eddng ph\u00e1t sinh trong c\u00e1c th\u00e1ng gi\u1eefa v\u00e0 cu\u1ed1i m\u00f9a m\u01b0a.<\/p>\n\n\n\n

\"\"
B\u1ec7nh n\u1ea5m h\u1ed3ng tr\u00ean l\u00e1 v\u00e0 qu\u1ea3 c\u00e0 ph\u00ea<\/em><\/figcaption><\/figure>\n\n\n\n

Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb:
– C\u1eaft, \u0111\u1ed1t c\u00e0nh b\u1ecb b\u1ec7nh n\u1ea5m h\u1ed3ng g\u00e2y h\u1ea1i n\u1eb7ng mang ra kh\u1ecfi v\u01b0\u1eddn \u0111\u1ec3 ti\u00eau h\u1ee7y
– S\u1eed d\u1ee5ng m\u1ed9t trong c\u00e1c lo\u1ea1i thu\u1ed1c c\u00f3 ngu\u1ed3n g\u1ed1c sinh h\u1ecdc nh\u01b0: Trichoderma viride, Trichoderma spp.
– S\u1eed d\u1ee5ng ph\u00e2n b\u00f3n l\u00e1 c\u00f3 K-Humate + Fulvate + Chitosan + Vitamin B1 \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng s\u1ee9c \u0111\u1ec1 kh\u00e1ng cho c\u00e2y
– N\u1ebfu b\u1ec7nh xu\u1ea5t hi\u1ec7n n\u1eb7ng c\u00f3 th\u1ec3 d\u00f9ng thu\u1ed1c h\u00f3a h\u1ecdc theo n\u1ed3ng \u0111\u1ed9 h\u01b0\u1edbng d\u1eabn tr\u00ean bao b\u00ec: Copper Hydroxide ho\u1eb7c Hexaconazole; Validamycin, Tilt\u2026phun 2 – 3 l\u1ea7n, m\u1ed7i l\u1ea7n c\u00e1ch nhau 10-15 ng\u00e0y.
2.5 R\u1ec7p s\u00e1p h\u1ea1i r\u1ec5 (Planococcus lilacinus Cockerell)<\/strong>
R\u1ec7p s\u00e1p h\u1ea1i r\u1ec5, hay r\u1ec7p s\u00e1p gi\u1ea3 (Planococcus lilacinus), l\u00e0 lo\u00e0i c\u00f4n tr\u00f9ng g\u00e2y h\u1ea1i nghi\u00eam tr\u1ecdng cho r\u1ec5 c\u00e2y c\u00e0 ph\u00ea, b\u1eb1ng c\u00e1ch ch\u00edch h\u00fat nh\u1ef1a, l\u00e0m c\u00e2y suy y\u1ebfu, v\u00e0ng l\u00e1, r\u1ee5ng c\u00e0nh, th\u1eadm ch\u00ed ch\u1ebft. Ch\u00fang ti\u1ebft ra s\u00e1p tr\u1eafng bao ph\u1ee7 r\u1ec5, c\u1ea3n tr\u1edf h\u1ea5p th\u1ee5 n\u01b0\u1edbc, dinh d\u01b0\u1ee1ng, \u0111\u1ed3ng th\u1eddi t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho n\u1ea5m v\u00e0 vi khu\u1ea9n ph\u00e1t tri\u1ec3n, g\u00e2y b\u1ec7nh th\u1ed1i r\u1ec5. Ph\u00f2ng tr\u1eeb c\u1ea7n k\u1ebft h\u1ee3p bi\u1ec7n ph\u00e1p canh t\u00e1c v\u00e0 s\u1eed d\u1ee5ng thu\u1ed1c h\u00f3a h\u1ecdc \u0111\u1eb7c tr\u1ecb, x\u1eed l\u00fd s\u00e1t g\u1ed1c \u0111\u1ec3 di\u1ec7t r\u1ec7p.<\/p>\n\n\n\n

\"\"
R\u1ec7p s\u00e1p h\u1ea1i r\u1ec5 c\u00e0 ph\u00ea<\/em><\/figcaption><\/figure>\n\n\n\n

<\/em>Ph\u00f2ng tr\u1eeb:<\/p>\n\n\n\n

– Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra ph\u1ea7n c\u1ed5 r\u1ec5 c\u00e0 ph\u00ea, n\u1ebfu th\u1ea5y m\u1eadt \u0111\u1ed9 r\u1ec7p l\u00ean cao tr\u00ean 100 con\/g\u1ed1c \u1edf v\u00f9ng c\u1ed5 r\u1ec5 \u1edf \u0111\u1ed9 s\u00e2u 0 – 20 cm th\u00ec ti\u1ebfn h\u00e0nh x\u1eed l\u00fd thu\u1ed1c theo ph\u01b0\u01a1ng ph\u00e1p sau: b\u1edbi \u0111\u1ea5t xung quanh v\u00f9ng c\u1ed5 r\u1ec5 theo d\u1ea1ng h\u00ecnh ph\u1ec5u c\u00e1ch g\u1ed1c 10 cm, s\u00e2u 20 cm. C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i thu\u1ed1c c\u00f3 ho\u1ea1t ch\u1ea5t sau: Imidacloprid; Cypermethrin + Profenofos; \u0110\u1ea7u Tr\u00e2u Bihopper 270 EC, DN zin 20 SE,TRUST TD 01 500 SC , IMBURAD 300 WP, n\u1ed3ng \u0111\u1ed9 s\u1eed d\u1ee5ng theo khuy\u1ebfn c\u00e1o tr\u00ean bao b\u00ec c\u1ee7a s\u1ea3n ph\u1ea9m .
– C\u00e1c thu\u1ed1c d\u1ea1ng n\u01b0\u1edbc n\u00ean ph\u1ed1i tr\u1ed9n v\u1edbi d\u1ea7u kho\u00e1ng t\u01b0\u1edbi cho m\u1ed7i g\u1ed1c 0,5 – 1 l\u00edt dung d\u1ecbch thu\u1ed1c v\u00e0 l\u1ea5p \u0111\u1ea5t l\u1ea1i ngay tr\u00e1nh \u0111\u1ec3 l\u00e2u ki\u1ebfn s\u1ebd mang r\u1ec7p ph\u00e1t t\u00e1n \u0111i n\u01a1i kh\u00e1c Ch\u1ec9 x\u1eed l\u00fd c\u00e1c c\u00e2y c\u00f3 r\u1ec7p.
2.6 R\u1ec7p s\u00e1p h\u1ea1i qu\u1ea3 v\u00e0 l\u00e1: r\u1ec7p s\u00e1p b\u1ed9t tua ng\u1eafn (Planococcus kraunhiae Kuwana) v\u00e0 r\u1ec7p s\u00e1p b\u1ed9t tua d\u00e0i (Ferrisia virgata Cockerell)<\/strong>
C\u00e1c lo\u1ea1i r\u1ec7p ch\u00edch h\u00fat nh\u1ef1a c\u00e1c b\u1ed9 ph\u1eadn non c\u1ee7a c\u00e0 ph\u00ea nh\u01b0 ch\u1ed3i v\u01b0\u1ee3t, l\u00e1 non (tr\u00ean l\u00e1 r\u1ec7p th\u01b0\u1eddng b\u00e1m v\u00e0o m\u1eb7t d\u01b0\u1edbi c\u1ee7a l\u00e1), ch\u1ed3i non, qu\u1ea3 non l\u00e0m cho c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y ph\u00e1t tri\u1ec3n k\u00e9m. R\u1ec7p v\u1ea3y xanh xu\u1ea5t hi\u1ec7n quanh n\u0103m tr\u00ean v\u01b0\u1eddn c\u00e2y, \u0111\u1eb7c bi\u1ec7t l\u00e0 th\u1eddi gian c\u00f3 c\u00e1c giai \u0111o\u1ea1n m\u01b0a n\u1eafng xen k\u1ebd nhau v\u00e0 g\u00e2y h\u1ea1i n\u1eb7ng trong m\u00f9a kh\u00f4.<\/p>\n\n\n\n

\"\"
R\u1ec7p s\u00e1p h\u1ea1i l\u00e1 v\u00e0 ch\u00f9m qu\u1ea3<\/em><\/figcaption><\/figure>\n\n\n\n

– Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra v\u01b0\u1eddn c\u00e2y nh\u1ea5t l\u00e0 v\u00e0o nh\u1eefng n\u0103m kh\u00f4 h\u1ea1n n\u1eb7ng r\u1ec7p s\u1ebd ph\u00e1 ho\u1ea1i n\u1eb7ng trong m\u00f9a m\u01b0a
– Khi th\u1ea5y kho\u1ea3ng 10% s\u1ed1 ch\u00f9m qu\u1ea3 tr\u00ean c\u00e2y c\u00f3 r\u1ec7p th\u00ec ti\u1ebfn h\u00e0nh phun m\u1ed9t trong c\u00e1c lo\u1ea1i thu\u1ed1c sau: Cypemethrin 40g\/l + Profenofos 400g\/l (Acotrin P 440EC); Spirotetramat (Movento 150 OD);\u2026 \u0110\u1ea7u Tr\u00e2u Bihopper 270 EC theo n\u1ed3ng \u0111\u1ed9 h\u01b0\u1edbng d\u1eabn tr\u00ean bao b\u00ec. Phun thu\u1ed1c 2 – 3 l\u1ea7n c\u00e1ch nhau 7-10 ng\u00e0y.
Ch\u00fa \u00fd: ch\u1ec9 phun thu\u1ed1c nh\u1eefng c\u00e2y b\u1ecb r\u1ec7p v\u00e0 phun khi c\u1ea7n thi\u1ebft (m\u1eadt \u0111\u1ed9 r\u1ec7p cao), kh\u00f4ng phun thu\u1ed1c \u0111\u1ecbnh k\u1ef3, kh\u00f4ng phun to\u00e0n b\u1ed9 di\u1ec7n t\u00edch.<\/p>\n\n\n\n

TS. Ph\u1ea1m Anh C\u01b0\u1eddng<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

V\u00e0o \u0111\u1ea7u v\u00e0 gi\u1eefa m\u00f9a m\u01b0a, qu\u1ea3 c\u00e0 ph\u00ea \u0111ang \u1edf giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n r\u1ea5t nhanh v\u1ec1 k\u00edch th\u01b0\u1edbc qu\u1ea3, m\u1eadt \u0111\u1ed9 qu\u1ea3\/ch\u00f9m kh\u00e1 d\u00e0y. Tuy nhi\u00ean, \u00e1p l\u1ef1c v\u1ec1 th\u1eddi ti\u1ebft, n\u1ea5m b\u1ec7nh v\u00e0 s\u00e2u r\u1ea7y ph\u00e1t tri\u1ec3n m\u1ea1nh \u0111ang l\u00e0m cho qu\u1ea3 c\u00e0 ph\u00ea non r\u1ee5ng nhi\u1ec1u, \u0111e d\u1ecda tr\u1ef1c ti\u1ebfp \u0111\u1ebfn … <\/p>\n

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