{"id":9510,"date":"2011-03-03T02:19:53","date_gmt":"2011-03-02T19:19:53","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2011\/03\/nghien-cuu-va-tuyen-chon-giong-thong-nhua-pinus-merkusii-jungh-vriese-khang-sau-rom-thong-dendrolimus-punctatuswalker\/"},"modified":"2013-10-06T09:02:10","modified_gmt":"2013-10-06T02:02:10","slug":"nghien-cuu-va-tuyen-chon-giong-thong-nhua-pinus-merkusii-jungh-vriese-khang-sau-rom-thong-dendrolimus-punctatuswalker","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-va-tuyen-chon-giong-thong-nhua-pinus-merkusii-jungh-vriese-khang-sau-rom-thong-dendrolimus-punctatuswalker\/","title":{"rendered":"Nghi\u00ean c\u1ee9u v\u00e0 tuy\u1ec3n ch\u1ecdn gi\u1ed1ng Th\u00f4ng nh\u1ef1a (Pinus merkusii Jungh. & Vriese) kh\u00e1ng s\u00e2u r\u00f3m th\u00f4ng (Dendrolimus punctatuswalker)"},"content":{"rendered":"

\u0110\u00e0o Ng\u1ecdc Quang, L\u00ea V\u0103n B\u00ecnh<\/strong> <\/p>\n

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

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

S\u00e2u r\u00f3m th\u00f4ng (Dendrolimus punctatus <\/em>Walker) l\u00e0 m\u1ed9t trong nh\u1eefng lo\u00e0i s\u00e2u h\u1ea1i nguy hi\u1ec3m nh\u1ea5t \u0111\u1ed1i v\u1edbi Th\u00f4ng nh\u1ef1a (Pinus merkusii <\/em>Jungh.& Vriese) x\u00e9t c\u1ea3 v\u1ec1 m\u1eb7t m\u1ee9c \u0111\u1ed9 g\u00e2y h\u1ea1i v\u00e0 t\u1ec9 l\u1ec7 g\u00e2y h\u1ea1i. Ch\u00fang kh\u00f4ng nh\u1eefng l\u00e0m gi\u1ea3m n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7, nh\u1ef1a m\u00e0 c\u00f2n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3nh quan m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i. Tuy nhi\u00ean, hi\u1ec7n nay t\u1ea1i x\u00e3 S\u01a1n L\u1ed9c, Can L\u1ed9c, H\u00e0 T\u0129nh c\u00f3 kho\u1ea3ng 3ha Th\u00f4ng nh\u1ef1a kho\u1ea3ng 30 tu\u1ed5i, t\u1eeb khi tr\u1ed3ng \u0111\u1ebfn nay ch\u01b0a h\u1ec1 b\u1ecb S\u00e2u r\u00f3m th\u00f4ng ph\u00e1 h\u1ea1i, m\u1eb7c d\u00f9 ngay b\u00ean c\u1ea1nh l\u00e0 khu r\u1eebng th\u00f4ng c\u00f9ng tu\u1ed5i lu\u00f4n b\u1ecb d\u1ecbch SRT t\u00e0n ph\u00e1 h\u00e0ng n\u0103m. Ch\u00fang t\u00f4i \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh c\u01a1 ch\u1ebf kh\u00e1ng SRT c\u1ee7a l\u00f4 r\u1eebng n\u00e0y. B\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 2 c\u01a1 ch\u1ebf kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng c\u1ee7a Th\u00f4ng nh\u1ef1a l\u00e0 c\u01a1 ch\u1ebf kh\u00f4ng \u01b0a th\u00edch v\u00e0 c\u01a1 ch\u1ebf kh\u00e1ng sinh t\u1eeb \u0111\u00f3 l\u00e0m c\u01a1 s\u1edf cho c\u00f4ng t\u00e1c ch\u1ecdn gi\u1ed1ng kh\u00e1ng s\u00e2u, b\u1ec7nh h\u1ea1i. <\/p>\n

T\u1eeb kh\u00f3a: <\/strong>Th\u00f4ng nh\u1ef1a, nh\u00e2n gi\u1ed1ng, S\u00e2u r\u00f3m th\u00f4ng<\/strong> <\/p>\n

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

T\u00f4\u0309ng di\u00ea\u0323n ti\u0301ch r\u01b0\u0300ng tr\u00f4\u0300ng \u01a1\u0309 Vi\u00ea\u0323t Nam cho \u0111\u00ea\u0301n n\u0103m 2008 la\u0300 2.770.182ha; trong \u0111o\u0301 di\u00ea\u0323n ti\u0301ch r\u01b0\u0300ng tr\u00f4\u0300ng ca\u0301c loa\u0300i th\u00f4ng chi\u1ebfm kho\u1ea3ng 250.000ha (chu\u0309 y\u00ea\u0301u la\u0300 Th\u00f4ng nh\u01b0\u0323a, Th\u00f4ng ma\u0303 vi\u0303, Th\u00f4ng ba la\u0301 va\u0300 Th\u00f4ng carib\u00ea). C\u00e2y th\u00f4ng la\u0300 m\u00f4\u0323t trong nh\u01b0\u0303ng loa\u0300i c\u00e2y co\u0301 gia\u0301 tri\u0323 kinh t\u00ea\u0301 cao; ngoa\u0300i g\u00f4\u0303 cho x\u00e2y d\u01b0\u0323ng, la\u0300m gi\u00e2\u0301y, nh\u01b0\u0323a th\u00f4ng co\u0300n \u0111\u01b0\u01a1\u0323c du\u0300ng trong nhi\u00ea\u0300u nga\u0300nh c\u00f4ng nghi\u00ea\u0323p nh\u01b0 s\u01a1n, v\u00e9cni, v\u00e2\u0323t li\u00ea\u0323u ca\u0301ch \u0111i\u00ea\u0323n va\u0300 ca\u0301c m\u0103\u0323t ha\u0300ng ti\u00eau du\u0300ng kha\u0301c. C\u00e2y th\u00f4ng 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. C\u00e2y th\u00f4ng co\u0300n co\u0301 gia\u0301 tri\u0323 \u0111\u0103\u0323c bi\u00ea\u0323t trong c\u01a1 c\u00e2\u0301u c\u00e2y tr\u00f4\u0300ng vu\u0300ng \u0111\u00f4\u0300i do nh\u01b0\u0303ng \u0111\u0103\u0323c ti\u0301nh sinh tha\u0301i \u0111\u0103\u0323c bi\u00ea\u0323t thi\u0301ch \u01b0\u0301ng v\u01a1\u0301i \u0111i\u00ea\u0300u ki\u00ea\u0323n l\u00e2\u0323p \u0111i\u0323a c\u0103\u0300n c\u00f4\u0303i. Chi\u0301nh vi\u0300 v\u00e2\u0323y th\u00f4ng \u0111\u01b0\u01a1\u0323c s\u01b0\u0309 du\u0323ng nhi\u00ea\u0300u \u0111\u00ea\u0309 phu\u0309 xanh \u0111\u00e2\u0301t tr\u00f4\u0301ng \u0111\u00f4\u0300i nu\u0301i tro\u0323c trong ca\u0301c ch\u01b0\u01a1ng tri\u0300nh tr\u00f4\u0300ng r\u01b0\u0300ng \u01a1\u0309 n\u01b0\u01a1\u0301c ta. <\/p>\n

Tuy nhi\u00ean, vi\u00ea\u0323c g\u00e2y tr\u00f4\u0300ng va\u0300 pha\u0301t tri\u00ea\u0309n c\u00e2y th\u00f4ng cu\u0303ng g\u0103\u0323p nhi\u00ea\u0300u tr\u01a1\u0309 nga\u0323i, m\u00f4\u0323t trong s\u00f4\u0301 \u0111o\u0301 la\u0300 v\u00e2\u0301n \u0111\u00ea\u0300 s\u00e2u b\u00ea\u0323nh ha\u0323i, nguy c\u01a1 v\u00ea\u0300 s\u00e2u b\u00ea\u0323nh ha\u0323i th\u00f4ng kh\u00f4ng chi\u0309 xa\u0309y ra ta\u0323i r\u01b0\u0300ng tr\u00f4\u0300ng ma\u0300 co\u0300n xu\u00e2\u0301t hi\u00ea\u0323n ta\u0323i ca\u0309 v\u01b0\u01a1\u0300n \u01b0\u01a1m. Ri\u00eang v\u00ea\u0300 s\u00e2u ha\u0323i \u0111a\u0303 \u0111i\u00ea\u0300u tra \u0111\u01b0\u01a1\u0323c 45 loa\u0300i bao g\u00f4\u0300m ca\u0301c loa\u0300i s\u00e2u \u0103n la\u0301, s\u00e2u \u0111u\u0323c th\u00e2n, s\u00e2u \u0111u\u0323c no\u0303n\u2026 trong \u0111\u00f3 lo\u00e0i g\u00e2y h\u1ea1i nguy hi\u1ec3m nh\u1ea5t l\u00e0 S\u00e2u r\u00f3m th\u00f4ng (Dendrolimus punctatus<\/em> Walker) thu\u1ed9c h\u1ecd Ng\u00e0i k\u00e9n hay Ng\u00e0i kh\u00f4 l\u00e1 (Lasiocampidae), b\u1ed9 C\u00e1nh v\u1ea9y (Lepidoptera). <\/p>\n

Khi d\u1ecbch s\u00e2u r\u00f3m th\u00f4ng xu\u1ea5t hi\u1ec7n, ch\u00fang kh\u00f4ng ch\u1ec9 g\u00e2y thi\u1ec7t h\u1ea1i v\u1ec1 kinh t\u1ebf do l\u00e0m gi\u1ea3m qu\u00e1 tr\u00ecnh sinh tr\u01b0\u1edfng, gi\u1ea3m s\u1ea3n l\u01b0\u1ee3ng nh\u1ef1a,\u2026 m\u00e0 c\u00f2n g\u00e2y \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn c\u1ea3nh quan m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i. \u0110\u00e3 c\u00f3 r\u1ea5t nhi\u1ec1u c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 \u0111\u01b0a ra \u00e1p d\u1ee5ng trong ph\u00f2ng tr\u1eeb lo\u00e0i s\u00e2u r\u00f3m th\u00f4ng n\u00e0y, t\u1eeb c\u00e1c bi\u1ec7n ph\u00e1p ri\u00eang l\u1ebb nh\u01b0 bi\u1ec7n ph\u00e1p v\u1eadt l\u00fd, c\u01a1 gi\u1edbi, bi\u1ec7n ph\u00e1p ho\u00e1 h\u1ecdc, bi\u1ec7n ph\u00e1p sinh h\u1ecdc cho \u0111\u1ebfn \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb t\u1ed5ng h\u1ee3p nh\u01b0ng \u0111\u1ebfn hi\u1ec7n nay d\u1ecbch s\u00e2u r\u00f3m th\u00f4ng v\u1eabn xu\u1ea5t hi\u1ec7n th\u01b0\u1eddng xuy\u00ean t\u1ea1i m\u1ed9t s\u1ed1 \u0111\u1ecba \u0111i\u1ec3m nh\u01b0: S\u01a1n \u0110\u1ed9ng – B\u1eafc Giang; H\u00e0 Trung – Thanh Ho\u00e1; Nghi L\u1ed9c, Nam \u0110\u00e0n – Ngh\u1ec7 An; H\u01b0\u01a1ng Kh\u00ea, H\u01b0\u01a1ng S\u01a1n – H\u00e0 T\u0129nh, Qu\u1ea3ng Tr\u1ea1ch – Qu\u1ea3ng B\u00ecnh. V\u00ec v\u1eady c\u1ea7n ph\u1ea3i c\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn m\u1edbi trong vi\u1ec7c ph\u00f2ng ch\u1ed1ng s\u00e2u r\u00f3m th\u00f4ng n\u00f3i ri\u00eang v\u00e0 s\u00e2u h\u1ea1i n\u00f3i chung v\u1edbi ph\u01b0\u01a1ng ch\u00e2m hi\u1ec7u qu\u1ea3, b\u1ec1n v\u1eefng v\u00e0 th\u00e2n thi\u1ec7n h\u01a1n v\u1edbi m\u00f4i tr\u01b0\u1eddng\u2026 <\/p>\n

Hi\u1ec7n nay, theo xu h\u01b0\u1edbng chung \u0111\u1ec3 h\u01b0\u1edbng t\u1edbi x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i b\u1ec1n v\u1eefng, r\u1ea5t nhi\u1ec1u nh\u00e0 khoa h\u1ecdc tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 v\u00e0 \u0111ang nghi\u00ean c\u1ee9u v\u1ec1 vi\u1ec7c ph\u00f2ng tr\u1eeb s\u00e2u b\u1ec7nh b\u1eb1ng bi\u1ec7n ph\u00e1p ch\u1ecdn gi\u1ed1ng kh\u00e1ng s\u00e2u b\u1ec7nh. S\u1eed d\u1ee5ng gi\u1ed1ng ch\u1ed1ng ch\u1ecbu trong s\u1ea3n xu\u1ea5t \u0111ang l\u00e0 m\u1ed9t trong nh\u1eefng h\u01b0\u1edbng \u0111i c\u1ee7a l\u00e2m nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i nh\u1eb1m kh\u1eafc ph\u1ee5c nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00f2ng tr\u1eeb s\u00e2u b\u1ec7nh kh\u00e1c, \u0111i\u1ec3n h\u00ecnh nh\u01b0 s\u1ef1 l\u1ec7 thu\u1ed9c v\u00e0o thu\u1ed1c h\u00f3a h\u1ecdc ng\u00e0y c\u00e0ng nhi\u1ec1u \u1edf c\u00e1c n\u01b0\u1edbc \u0111ang ph\u00e1t tri\u1ec3n. <\/p>\n

(K\u1ef7 y\u1ebfu H\u1ed9i ngh\u1ecb Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 L\u00e2m nghi\u1ec7p v\u1edbi ph\u00e1t tri\u1ec3n r\u1eebng b\u1ec1n v\u1eefng v\u00e0 bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, trang 89<\/em>-100) <\/p>\n","protected":false},"excerpt":{"rendered":"

\nSâu róm thông (Dendrolimus punctatus <\/span><\/em>Walker<\/span>) là m\u1ed9t trong nh\u1eefng loài sâu h\u1ea1i nguy hi\u1ec3m nh\u1ea5t \u0111\u1ed1i v\u1edbi Thông nh\u1ef1a (Pinus merkusii <\/span><\/em>Jungh.& Vriese) xét c\u1ea3 v\u1ec1 m\u1eb7t m\u1ee9c \u0111\u1ed9 gây h\u1ea1i và t\u1ec9 l\u1ec7 gây h\u1ea1i. Chúng không nh\u1eefng làm gi\u1ea3m n\u0103ng su\u1ea5t và ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7, nh\u1ef1a mà còn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3nh quan môi tr\u01b0\u1eddng sinh thái. Tuy nhiên, hi\u1ec7n nay t\u1ea1i xã S\u01a1n L\u1ed9c, Can L\u1ed9c, Hà T\u0129nh có kho\u1ea3ng 3ha Thông nh\u1ef1a kho\u1ea3ng 30 tu\u1ed5i, t\u1eeb khi tr\u1ed3ng \u0111\u1ebfn nay ch\u01b0a h\u1ec1 b\u1ecb Sâu róm thông phá h\u1ea1i, m\u1eb7c dù ngay bên c\u1ea1nh là khu r\u1eebng thông cùng tu\u1ed5i luôn b\u1ecb d\u1ecbch SRT tàn phá hàng n\u0103m.<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9510"}],"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=9510"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9510\/revisions"}],"predecessor-version":[{"id":10964,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9510\/revisions\/10964"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9510"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}