Nguy\u1ec5n V\u0103n \u0110\u1ed9 <\/i><\/p>\n
Vi\u1ec7n Khoa h\u1ecdc L\u00e2m Nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n
Keo v\u00e0 b\u1ea1ch \u0111\u00e0n l\u00e0 2 nh\u00f3m c\u00e2y c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb \u00fac \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o n\u01b0\u1edbc ta trong \u0111\u00f3 m\u1ed9t s\u1ed1 lo\u00e0i nh\u01b0 A. auriculiformis<\/i>, A. mangium,<\/i> E. camaldulensis, E. tereticornis<\/i>, E. urophylla <\/i>\u0111\u00e3\u0111\u01b0\u1ee3c g\u00e2y tr\u1ed3ng r\u1ed9ng r\u00e3i. Nhi\u1ec1u lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 m\u1edbi c\u1ee7a 2 nh\u00f3m c\u00e2y n\u00e0y hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c tr\u1ed3ng kh\u1ea3o nghi\u1ec7m \u0111\u1ec3 ti\u1ebfp t\u1ee5c \u0111\u01b0a v\u00e0o g\u00e2y tr\u1ed3ng v\u00e0 ph\u00e1t tri\u1ec3n. C\u00f9ng v\u1edbi vi\u1ec7c m\u1edf r\u1ed9ng di\u1ec7n t\u00edch c\u1ee7a 2 nh\u00f3m c\u00e2y n\u00e0y, t\u00ecnh h\u00ecnh s\u00e2u h\u1ea1i hi\u1ec7n nay \u0111ang di\u1ec5n bi\u1ebfn r\u1ea5t ph\u1ee9c t\u1ea1p; nhi\u1ec1u lo\u00e0i s\u00e2u m\u1edbi xu\u1ea5t hi\u1ec7n v\u00e0 m\u1ed9t s\u1ed1 lo\u00e0i \u0111\u00e3 g\u00e2y th\u00e0nh d\u1ecbch \u1edf c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng nh\u01b0 s\u00e2u x\u00e1m, s\u00e2u t\u00fai \u0103n l\u00e1 keo tai t\u01b0\u1ee3ng t\u1ea1i Tuy\u00ean Quang v\u00e0 H\u00e0 T\u00e2y, x\u00e9n t\u00f3c \u0111\u1ee5c th\u00e2n b\u1ea1ch \u0111\u00e0n t\u1ea1i Ki\u00ean Giang, s\u00e2u \u0111\u1ee5c th\u00e2n keo l\u00e1 tr\u00e0m t\u1ea1i Gia Lai… \u0111\u00f2i h\u1ecfi ph\u1ea3i ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra th\u00e0nh ph\u1ea7n lo\u00e0i s\u00e2u h\u1ea1i, \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ph\u00e1 h\u1ea1i c\u1ee7a ch\u00fang \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u01b0u ti\u00ean nghi\u00ean c\u1ee9u v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng ph\u00f2ng tr\u1eeb.<\/p>\n
M\u1eb7t kh\u00e1c nh\u1eefng th\u00f4ng tin tr\u00ean th\u1ebf gi\u1edbi g\u1ea7n \u0111\u00e2y cho th\u1ea5y ngo\u00e0i bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb s\u00e2u b\u1ec7nh h\u1ea1i nh\u01b0 s\u1eed d\u1ee5ng thu\u1ed1c tr\u1eeb s\u00e2u b\u1ec7nh ho\u00e1 ch\u1ea5t, c\u00e1c ch\u1ebf ph\u1ea9m sinh h\u1ecdc… bi\u1ec7n ph\u00e1p tuy\u1ec3n ch\u1ecdn nh\u1eefng lo\u00e0i, xu\u1ea5t x\u1ee9 c\u00e2y c\u00f3 t\u00ednh kh\u00e1ng ho\u1eb7c \u00edt b\u1ecb s\u00e2u b\u1ec7nh h\u1ea1i \u0111ang \u0111\u01b0\u1ee3c th\u1ecbnh h\u00e0nh v\u00e0 c\u00f3 nhi\u1ec1u k\u1ebft qu\u1ea3 \u0111\u00e1ng kh\u00edch l\u1ec7. Vi\u1ec7c tuy\u1ec3n ch\u1ecdn n\u00e0y kh\u00f4ng ch\u1ec9 l\u1ee3i \u00edch v\u1ec1 m\u1eb7t kinh t\u1ebf m\u00e0 c\u1ea3 v\u1ec1 m\u00f4i tr\u01b0\u1eddng do vi\u1ec7c gi\u1ea3m ho\u1eb7c kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i thu\u1ed1c ho\u00e1 h\u1ecdc trong c\u00f4ng t\u00e1c ph\u00f2ng tr\u1eeb s\u00e2u b\u1ec7nh.<\/p>\n
\u0110\u1ec3 g\u00f3p ph\u1ea7n v\u00e0o c\u00f4ng t\u00e1c \u0111i\u1ec1u tra th\u00e0nh ph\u1ea7n lo\u00e0i s\u00e2u h\u1ea1i c\u00e2y r\u1eebng n\u00f3i chung, \u0111\u1ed3ng th\u1eddi t\u00ecm hi\u1ec3u v\u1ec1 t\u00ednh m\u1eabn c\u1ea3m s\u00e2u h\u1ea1i \u0111\u1ed1i v\u1edbi c\u00e1c lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 c\u1ee7a keo v\u00e0 b\u1ea1ch \u0111\u00e0n, ch\u00fang t\u00f4i \u0111\u00e3 ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra th\u00e0nh ph\u1ea7n lo\u00e0i s\u00e2u h\u1ea1i v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 h\u1ea1i tr\u00ean c\u00e1c khu th\u1eed nghi\u1ec7m lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 c\u1ee7a 2 nh\u00f3m c\u00e2y n\u00e0y nh\u1eb1m g\u00f3p ph\u1ea7n cho vi\u1ec7c \u0111\u1ecbnh h\u01b0\u1edbng nghi\u00ean c\u1ee9u ph\u00f2ng tr\u1eeb v\u00e0 tuy\u1ec3n ch\u1ecdn nh\u1eefng lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 \u00edt b\u1ecb s\u00e2u h\u1ea1i ph\u1ee5c v\u1ee5 cho vi\u1ec7c qu\u1ea3n l\u00fd b\u1ea3o v\u1ec7 r\u1eebng keo v\u00e0 b\u1ea1ch \u0111\u00e0n trong th\u1eddi gian t\u1edbi.<\/p>\n
1. \u0110\u1ed1i t\u01b0\u1ee3ng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u:<\/b><\/p>\n
\u00b7 \u0110\u1ed1i t\u01b0\u1ee3ng v\u00e0 \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u: c\u00e1c c\u00f4n tr\u00f9ng g\u00e2y h\u1ea1i keo v\u00e0 b\u1ea1ch \u0111\u00e0n t\u1ea1i c\u00e1c khu th\u1eed nghi\u1ec7m xu\u1ea5t x\u1ee9 keo v\u00e0 b\u1ea1ch \u0111\u00e0n c\u1ee7a Trung t\u00e2m Gi\u1ed1ng c\u00e2y r\u1eebng t\u1ea1i \u0110\u00e1 Ch\u00f4ng v\u00e0 C\u1ea9m Qu\u1ef3 huy\u1ec7n Ba V\u00ec t\u1ec9nh H\u00e0 T\u00e2y.<\/p>\n
\u00b7 Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tra v\u00e0 \u0111\u00e1nh gi\u00e1:<\/p>\n
+ \u0110i\u1ec1u tra \u0111\u1ecbnh k\u1ef3 5 ng\u00e0y m\u1ed9t l\u1ea7n v\u00e0 s\u1eed d\u1ee5ng phi\u1ebfu in s\u1eb5n \u0111\u1ec3 \u0111i\u1ec1u tra v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ph\u00e1 h\u1ea1i c\u1ee7a ch\u00fang.<\/p>\n
+ Vi\u1ec7c \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 h\u1ea1i c\u1ee7a c\u00e1c lo\u00e0i s\u00e2u tr\u00ean keo v\u00e0 b\u1ea1ch \u0111\u00e0n \u0111\u01b0\u1ee3c chia th\u00e0nh 4 c\u1ea5p : kh\u00f4ng \u0111\u00e1ng k\u1ec3 – nh\u1eb9 – trung b\u00ecnh – n\u1eb7ng.<\/p>\n
\u00b7 X\u1eed l\u00fd s\u1ed1 li\u1ec7u: c\u00e1c d\u1eef li\u1ec7u trong phi\u1ebfu \u0111i\u1ec1u tra s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef v\u00e0 x\u1eed l\u00fd tr\u00ean m\u00e1y t\u00ednh v\u1edbi ch\u01b0\u01a1ng tr\u00ecnh ACIAR Database.<\/p>\n
2. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u <\/b><\/p>\n
\u00b7 Th\u00e0nh ph\u1ea7n lo\u00e0i s\u00e2u h\u1ea1i thu th\u1eadp t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u bao g\u1ed3m :<\/p>\n
+ S\u00e2u h\u1ea1i keo: 24 lo\u00e0i thu\u1ed9c 16 h\u1ecd 5 b\u1ed9<\/p>\n
+ S\u00e2u h\u1ea1i b\u1ea1ch \u0111\u00e0n: 9 lo\u00e0i thu\u1ed9c 9 h\u1ecd 3 b\u1ed9.<\/p>\n
\u00b7 M\u1ee9c \u0111\u1ed9 h\u1ea1i c\u1ee7a c\u00e1c lo\u00e0i s\u00e2u tr\u00ean keo v\u00e0 b\u1ea1ch \u0111\u00e0n t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u n\u00f3i chung kh\u00f4ng \u0111\u00e1ng k\u1ec3, c\u00f3 m\u1ed9t v\u00e0i lo\u00e0i g\u00e2y h\u1ea1i nh\u1eb9 nh\u01b0ng di\u1ec7n t\u00edch b\u1ecb h\u1ea1i kh\u00f4ng l\u1edbn. S\u00e2u h\u1ea1i th\u01b0\u1eddng th\u1ea5y tr\u00ean c\u00e2y keo l\u00e0 Hypomeces squamosus <\/i>(Coleoptera, Curculionidae)v\u00e0 Homoeocerus walkeri <\/i>(Hemiptera, Coreidae). S\u00e2u h\u1ea1i th\u01b0\u1eddng th\u1ea5y tr\u00ean c\u00e2y b\u1ea1ch \u0111\u00e0n l\u00e0 Strepsicrates rothia<\/i> (Lepidoptera, Tortricidae) v\u00e0 Trabala vishnou<\/i> (Lepidoptera, Lasiocampidae).<\/p>\n
\u00b7 H\u00ecnh th\u1ee9c g\u00e2y h\u1ea1i c\u1ee7a c\u00e1c lo\u00e0i s\u00e2u h\u1ea1i tr\u00ean keo \u0111\u01b0\u1ee3c chia th\u00e0nh 3 nh\u00f3m, trong \u0111\u00f3 nh\u00f3m s\u00e2u \u0103n l\u00e1 chi\u1ebfm t\u1ef7 l\u1ec7 71%, nh\u00f3m s\u00e2u ch\u00edch h\u00fat chi\u1ebfm t\u1ef7 l\u1ec7 25%, nh\u00f3m s\u00e2u \u0111\u1ee5c th\u00e2n chi\u1ebfm t\u1ef7 l\u1ec7 4% t\u1ed5ng s\u1ed1 lo\u00e0i. H\u00ecnh th\u1ee9c g\u00e2y h\u1ea1i c\u1ee7a c\u00f4n tr\u00f9ng h\u1ea1i b\u1ea1ch \u0111\u00e0n t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c chia th\u00e0nh 2 nh\u00f3m; trong \u0111\u00f3 nh\u00f3m s\u00e2u \u0103n l\u00e1 chi\u1ebfm t\u1ef7 l\u1ec7 56%, nh\u00f3m s\u00e2u ch\u00edch h\u00fat chi\u1ebfm t\u1ef7 l\u1ec7 44 % t\u1ed5ng s\u1ed1 lo\u00e0i.<\/p>\n
\u00b7 S\u1ed1 l\u01b0\u1ee3ng lo\u00e0i s\u00e2u h\u1ea1i tr\u00ean c\u00e1c lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 c\u1ee7a c\u00e2y keo t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u nh\u01b0 sau:<\/p>\n
– Keo lai( A.auriculiformis x A. mangium<\/i>) c\u00f3 20 lo\u00e0i s\u00e2u h\u1ea1i.<\/p>\n
– Keo tai t\u01b0\u1ee3ng (A. mangium<\/i>) c\u00f3 5 lo\u00e0i s\u00e2u h\u1ea1i, trong \u0111\u00f3 xu\u1ea5t x\u1ee9 Kini WP c\u00f3 s\u1ed1 l\u01b0\u1ee3ng lo\u00e0i s\u00e2u h\u1ea1i cao nh\u1ea5t.<\/p>\n
– Keo l\u00e1 tr\u00e0m (A.auriculiformis) <\/i>c\u00f3 8 lo\u00e0i s\u00e2u h\u1ea1i, trong \u0111\u00f3 xu\u1ea5t x\u1ee9 Sakaerat c\u00f3 s\u1ed1 l\u01b0\u1ee3ng lo\u00e0i s\u00e2u h\u1ea1i cao nh\u1ea5t.<\/p>\n
\u00b7 S\u1ed1 l\u01b0\u1ee3ng lo\u00e0i s\u00e2u h\u1ea1i tr\u00ean c\u00e1c lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 c\u1ee7a b\u1ea1ch \u0111\u00e0n t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u nh\u01b0 sau:<\/p>\n
– B\u1ea1ch \u0111\u00e0n E. camldulensis<\/i> g\u1ed3m c\u00f3 3 lo\u00e0i s\u00e2u h\u1ea1i, \u0111\u00f3 xu\u1ea5t x\u1ee9 Petford c\u00f3 s\u1ed1 l\u01b0\u1ee3ng lo\u00e0i s\u00e2u h\u1ea1i cao nh\u1ea5t.<\/p>\n
– <\/b>B\u1ea1ch \u0111\u00e0n E. urophylla<\/i> g\u1ed3m c\u00f3 8 lo\u00e0i s\u00e2u h\u1ea1i, trong c\u00e1c xu\u1ea5t x\u1ee9 c\u1ee7a ch\u00fang xu\u1ea5t x\u1ee9 Lewotobi c\u00f3 s\u1ed1 l\u01b0\u1ee3ng lo\u00e0i s\u00e2u h\u1ea1i cao nh\u1ea5t.<\/p>\n
– B\u1ea1ch \u0111\u00e0n E. exerta<\/i> v\u00e0 b\u1ea1ch \u0111\u00e0n lai (E. camldulensis <\/i>x E. tereticornis) <\/i>ch\u1ec9 c\u00f3 1 lo\u00e0i s\u00e2u h\u1ea1i.<\/p>\n
3. Th\u1ea3o lu\u1eadn<\/p>\n
\u00b7 Nh\u00f3m g\u00e2y h\u1ea1i ch\u00ednh c\u1ee7a s\u00e2u h\u1ea1i keo v\u00e0 b\u1ea1ch \u0111\u00e0n t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u l\u00e0 nh\u00f3m s\u00e2u \u0103n l\u00e1, \u0111i\u1ec1u n\u00e0y c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c k\u1ebft qu\u1ea3 \u0111i\u1ec1u tra c\u1ee7a ch\u00fang t\u00f4i t\u1ea1i m\u1ed9t s\u1ed1 t\u1ec9nh t\u1ea1i mi\u1ec1n B\u1eafc, Trung, Nam \u1edf n\u01b0\u1edbc ta v\u00e0 c\u1ee7a c\u00e1c t\u00e1c gi\u1ea3 tr\u01b0\u1edbc \u0111\u00e2y \u1edf Vi\u1ec7t nam c\u0169ng nh\u01b0 trong khu v\u1ef1c Ch\u00e2u \u00e1 Th\u00e1i B\u00ecnh D\u01b0\u01a1ng. Vi\u1ec7c ph\u00e2n nh\u00f3m d\u1ef1a tr\u00ean h\u00ecnh th\u1ee9c g\u00e2y h\u1ea1i v\u00e0 x\u00e1c \u0111\u1ecbnh nh\u00f3m g\u00e2y h\u1ea1i ch\u00ednh c\u1ee7a s\u00e2u keo v\u00e0 b\u1ea1ch \u0111\u00e0n c\u00f3 \u00fd ngh\u0129a trong vi\u1ec7c \u0111\u1ecbnh h\u01b0\u1edbng nghi\u00ean c\u1ee9u v\u00e0 \u0111\u1ec1 xu\u1ea5t c\u00e1c gi\u1ea3i ph\u00e1p ph\u00f2ng tr\u1eeb h\u1eefu hi\u1ec7u \u0111\u1ec3 qu\u1ea3n l\u00fd v\u00e0 ph\u00f2ng tr\u1eeb ch\u00fang.<\/p>\n
\u00b7 Trong c\u00e1c lo\u00e0i keo, b\u1ea1ch \u0111\u00e0n tr\u1ed3ng th\u1eed nghi\u1ec7m t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u th\u00ec keo lai (A. auriculiformis <\/i>x A. mangium<\/i>) v\u00e0 b\u1ea1ch \u0111\u00e0n E. urophylla<\/i> c\u00f3 s\u1ed1 l\u01b0\u1ee3ng lo\u00e0i s\u00e2u h\u1ea1i cao nh\u1ea5t. \u0110\u00e2y c\u0169ng l\u00e0 \u0111i\u1ec3m c\u1ea7n ch\u00fa \u00fd trong vi\u1ec7c theo d\u00f5i di\u1ec5n bi\u1ebfn t\u00ecnh h\u00ecnh s\u00e2u h\u1ea1i tr\u00ean c\u00e1c lo\u00e0i keo v\u00e0 b\u1ea1ch \u0111\u00e0n, nh\u1ea5t l\u00e0 hi\u1ec7n nay keo lai v\u00e0 b\u1ea1ch \u0111\u00e0n E. urophylla<\/i> \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n m\u1edf r\u1ed9ng \u1edf n\u01b0\u1edbc ta.<\/p>\n
\u00b7 Vi\u1ec7c ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n s\u00e2u h\u1ea1i tr\u00ean c\u00e1c xu\u1ea5t x\u1ee9 c\u1ee7a keo v\u00e0 b\u1ea1ch \u0111\u00e0n t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u s\u1ebd l\u00e0 g\u1ee3i \u00fd cho c\u00e1c c\u00e1n b\u1ed9 tr\u1ed3ng r\u1eebng trong vi\u1ec7c ch\u1ecdn c\u00e1c xu\u1ea5t x\u1ee9 th\u00edch h\u1ee3p \u0111\u1ec3 tr\u1ed3ng v\u00e0 ph\u00e1t tri\u1ec3n r\u1eebng.<\/p>\n
T\u00e0i li\u1ec7u tham kh\u1ea3o<\/b><\/p>\n
1. \u0110\u00e0o Xu\u00e2n Tr\u01b0\u1eddng, C\u1ee5c Ki\u1ec3m L\u00e2m . S\u00e2u h\u1ea1i v\u01b0\u1eddn \u01b0\u01a1m v\u00e0 r\u1eebng tr\u1ed3ng<\/i>. Nh\u00e0 xu\u1ea5t b\u1ea3n N\u00f4ng Nghi\u1ec7p . 1995. 155 trang.<\/p>\n
2. Nguy\u1ec5n V\u0103n B\u00edch. T\u00ecnh h\u00ecnh s\u00e2u b\u1ec7nh h\u1ea1i r\u1eebng tr\u1ed3ng \u1edf Vi\u1ec7t Nam<\/i>. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u00f4ng ngh\u1ec7 L\u00e2m Nghi\u1ec7p 1991-1995. Nh\u00e0 xu\u1ea5t b\u1ea3n N\u00f4ng nghi\u1ec7p . 1996. Trang 300-303.<\/p>\n
3. H\u00e0 V\u0103n Ho\u1ea1ch. S\u00e2u b\u1ec7nh h\u1ea1i r\u1eebng tr\u1ed3ng v\u00f9ng \u0110\u00f4ng B\u1eafc.<\/b><\/i> K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u00f4ng ngh\u1ec7 L\u00e2m Nghi\u1ec7p 1991-1995. Nh\u00e0 xu\u1ea5t b\u1ea3n N\u00f4ng Nghi\u1ec7p. 1996. Trang 303-306.<\/p>\n
4. Wylie F. R., R.B. Floyd, H.Elliott, Chey Vun Khen, Jurie Intachat, Chaweewan Hutacharern, Nopachon Tubtim, Le Dinh Kha, Nguyen Van Do, O. Rachmatsiah, K. Gale, A. Zulfiuah and R. Vuokko. Insect pests of tropical acacias : a new project in southeast Asia and Northern Australia<\/i> . Proceedings of an international workshop held in Hanoi, Vietnam, 27-30 October 1997. pp 234 -239 .<\/p>\n
Summary<\/b><\/p>\n
Results of survey on species composition of insect pest<\/p>\n
and their damage levels at acacia and eucalypt trials<\/p>\n
in Ba Vi – Ha Tay<\/p>\n
Survey of insect pests was conducted from 1997 to 1999 at acacia and eucalypt provenance trials at the Center for Forest Tree Improvement- Forest Science Institute of Vietnam at Da Chong, Cam Quy communes, Ba Vi district, Ha Tay province. Number of pest insect species on acacia and eucalypt have been mentioned of which Hypomeces squamosus, Homoeocerus walkeri <\/i>(on acacia) and Strepsicrates rothia, Trabala vishnou<\/i> (on eucalypt) are common pest insect species in these areas. Besides, damage types of the insect pests and their grouping have been determined. Further more composition of the insect pests has also been analyzed at species and provenance levels of acacias and eucalyptus for forest protection and management. ****************************************<\/p>\n","protected":false},"excerpt":{"rendered":"
Keo v\u00e0 b\u1ea1ch \u0111\u00e0n l\u00e0 2 nh\u00f3m c\u00e2y c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb \u00fac \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o n\u01b0\u1edbc ta trong \u0111\u00f3 m\u1ed9t s\u1ed1 lo\u00e0i nh\u01b0 A. auriculiformis, A. mangium, E. camaldulensis, E. tereticornis, E. urophylla \u0111\u00e3 \u0111\u01b0\u1ee3c g\u00e2y tr\u1ed3ng r\u1ed9ng r\u00e3i. Nhi\u1ec1u lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 m\u1edbi c\u1ee7a 2 nh\u00f3m c\u00e2y n\u00e0y hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c tr\u1ed3ng kh\u1ea3o nghi\u1ec7m \u0111\u1ec3 ti\u1ebfp t\u1ee5c \u0111\u01b0a v\u00e0o g\u00e2y tr\u1ed3ng v\u00e0 ph\u00e1t tri\u1ec3n. C\u00f9ng v\u1edbi vi\u1ec7c m\u1edf r\u1ed9ng di\u1ec7n t\u00edch c\u1ee7a 2 nh\u00f3m c\u00e2y n\u00e0y, t\u00ecnh h\u00ecnh s\u00e2u h\u1ea1i hi\u1ec7n nay \u0111ang di\u1ec5n bi\u1ebfn r\u1ea5t ph\u1ee9c t\u1ea1p; nhi\u1ec1u lo\u00e0i s\u00e2u m\u1edbi xu\u1ea5t hi\u1ec7n v\u00e0 m\u1ed9t s\u1ed1 lo\u00e0i \u0111\u00e3 g\u00e2y th\u00e0nh d\u1ecbch \u1edf c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng nh\u01b0 s\u00e2u x\u00e1m, s\u00e2u t\u00fai \u0103n l\u00e1 keo tai t\u01b0\u1ee3ng t\u1ea1i Tuy\u00ean Quang v\u00e0 H\u00e0 T\u00e2y, x\u00e9n t\u00f3c \u0111\u1ee5c th\u00e2n b\u1ea1ch \u0111\u00e0n t\u1ea1i Ki\u00ean Giang, s\u00e2u \u0111\u1ee5c th\u00e2n keo l\u00e1 tr\u00e0m t\u1ea1i Gia Lai… \u0111\u00f2i h\u1ecfi ph\u1ea3i ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra th\u00e0nh ph\u1ea7n lo\u00e0i s\u00e2u h\u1ea1i, \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ph\u00e1 h\u1ea1i c\u1ee7a ch\u00fang \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u01b0u ti\u00ean nghi\u00ean c\u1ee9u v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng ph\u00f2ng tr\u1eeb.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/301"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=301"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/301\/revisions"}],"predecessor-version":[{"id":19364,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/301\/revisions\/19364"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}