báo cáo tóm tắt đề tài nghiên cứu các biện pháp phòng trừ loài ong gây dịch u bướu bạch đàn ở vườn ươm và rừng trồng tại vùng đông nam bộ

ĐẶT VẤN ĐỀ

 
!"#$%&"'"()
*+,+-."+%
/#012(345+6
78594&)*:4
%;40+<
44,/85(8+%
/=>5*(>(
?@+A''BCDE(F
@5(,G#0(,G
7+)"=">+'H1">#I"
J"=(EH!
44G"46"+
4=%;40
JKLM"J"NOPPQR(+7D+
4'6O";&
ST21">(
6+)#0+U0#0
9)"G%DS0(
#V8"46"+4
#T&>&%21">
!"#$%G%D=U6(
=')"7'+
D+G+%++)
+W9
:!,=X"#G%71G1=
(3/8+)+-7()"
#%8%/+95+6
/,U%%H3#G%7CD

E(+>)54,#UH
#5+6!0
86?%Y+YT(0
'-4Z[('-4
+6'6=."5"
=4G0'8W9

:0,4>#\"
=X"+)/,E
4  %%  %-    9    :  +]  +<
#T/,D8#+0
."UV5+6"/=
49&
^  +<  +  1  'W  +  W    )
_`=X"4%%%-
'G"46"4+7D+
+aSTb="
!">%0?,%%!W,"."U
+T "% /+ 4U+ 9
6
NỘI DUNG VÀ PHƯƠNG PHÁP NGHIÊN CỨU
c 1. Nội dung nghiên cứu
S)"]]9"
46"4+X4G5+6
4('-+1">1X,#U
H#5+685&
2+1U'G_]SG(L*J

c 2. Phương pháp nghiên cứu
S)"]]9"

46"4+1G85'-(1">1X
,#UH#5+6
85&2+1U'G_]SG(
L*J
d J"<%T9D."E"
(4#e"<G%D+)]
]9"46"4
EH!
dS'>"(1G+a71U
'G
dJ@&cG/71U
'G/0)"
Điều tra trên vườn ươm
dJ0<%TG+G/)"(@+7
D0<%fTG+G(@&)"f
/('@TQ
O
NO1OR(;85
cgT(;'f[
O
h&1O&i
jO
O
S)"k+X4G(85
(()">UTG
+G
Điều tra trên rừng trồng
d S)"K"0)""0/
]."'+E#"+W2
+1I'G(,%E+a

4G+E+a#T4G
J  4  "0  )"      1  G  
l#h/h&(  )"    c  /  ;  85  
cl#h&1O&ifP#
dJ0<%T=""I/)"(@
G&0<%fT=""I(@&/"
f/h&1O&(;85cgPPP
O
S)"
k+X4G'(
85T=""I((<(
K(W4]+3/+)('5(6
%D('9T=""IcPPP
O
NOl1
QPR(69T1G4?
5()"T'>"4?
8Dm(X)"

Phân cấp chỉ số bị hại
Chỉ số
bị hại
Biểu hiện bên ngoài
P :(#T4G"46"(8
%/#n
c +4G"46"
O O[dlPo+4G"46"
f lcdjlo+4G"46"
Q pjlo+4G"46"
 J=D8#0."U%>%4G

&="8"_
Tỷ lệ cây bị sâu hại_k4G8"ko85
4G4=;85)"1
GKTX_
J,__854G8"
_;85)"
q0."U)""1rV=%!
)sLss
Chỉ số bị hại bình quân_K%D
%%4].".")+6TX8"_
J,_to_&854G8""
4]
_854G+6&854G8"
_;85)"
_>%4G>N7%i
QR
Mức độ bị hại_'W=&854G4]."
tucPo :#mK
cPovtuclo :4Gw
clovtuOlo
:  4G    "
4]
OlovtulPo :4G3
tplPo :4G>3

KẾT QUẢ NGHIÊN CỨU
c 1. Kết quả thống kê diện tích ong u
bướu gây hại bạch đàn tại vườn ươm và
rừng trồng
^4T 

%M"D&]SG#UfcP(
90"Z[(LcQ+LcO('
'4G"46"90"
Z[";cDL*(:(
aJGx"^4
T %JJ#U[PP(
90"Z[(LcQ('4G
"46"90"Z[";c
+4JJ(La+
J="^="q0."U]44Uc

N"OPcP_'T %M"D
&  ]  SG  +  T      %  J
J&L*JR

J#0."U4U=>&]
SG'+85D
4GU(k4GH=(5+6
&L*J^4GU(k4G
U


1.1. Kết quả điều tra tỷ lệ bị hại và mức độ bị
hại tại vườn ươm
J0<%T)"+%>%4G4
Z[O0Q+y0
cO+7D9T %
M"D+:T %JJ
q0."U]44UO


Bảng 2:Jk4G+X4G+7
DT %M"D&]
SG+:T %JJ&L*
J
s
&
J
OhOPcP
J
fhOPcP
J
QhOPcP
J
yhOPcP
J
cPhOPc
P
J
cchOPc
P
L
NoR
t4
NoR
L
NoR
t4
NoR
L
No

R
t4
No
R
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t4
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L
NoR
t4
No
R
L
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t4
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]
SG
lf Oc QQ c[ Ol gP cc Pf cf Pl cg cO
L*
J
QO cg f[ cO cg [P cP PO cO PQ cj cP
J#0."U4UO>k4G+X
4G9U'!4G3
1"5   #mK(  k   lfo(  X   Oco +
O(0QU1"5k4GOlo
(X4GgPo+H'!#mK0
4Gwyk4Gcco(X4G
Pfo0cck4Gcgo(X

4GcOo]SG+L*JDW
k4GQOo(X4Gcgo+O(
0QU1"5k4Gcgo(X
4GgPo+H'!ykcPo(
X4GPOo0cck4G
cjo(X4GcPo

1.2. Kết quả điều tra tỷ lệ bị hại và mức
độ bị hại tại rừng trồng
d L >% "  46"     Z[
0O0Q+
y0cc=fG/_DL*(:
(aJGx"9&]SG(@G
/)"fT=""I(;yT=""I
>k4G+X4GT="
"IG/DL*T=""Ick
4GQ[o(X4GOco+O(
Qk4Gyfo+X4GGlPo
0yk4GOco(X4GcPo(
0cck4Gfco(X4G
cjo(T=""IO(fFDWk4G
+X4G9ODf(Q
+0yk4G+X4G>%
DcP(ccJ:+aJx"
=T=""Ik4G+X4G
9ODf(Q+0yk
4G+X4G>%DcP(cc
d L >% "  46"     Z[
0O0Q+
y0cc=fG/_JT(La

+J="^"&L*J(@G/)"
fT=""I(;yT=""Iq0."U
>k4G+X4GT="
"IG/JTT=""Ick
4GfQo(X4Gcyo+O(
Qk4Gclo+X4GGllo
0yk4Gcgo(X4GyPo
0cck4GfOo(X4G
c[o(T=""IO(fFDWk4G
+X4G9ODf(Q
+0yk4G+X4G>%
DcP(ccJLa+J="^"=
T=""I,k4G+X4G
9ODf(Q+0yk
4G+X4G>%DcP(cc

KẾT LUẬN
c S2 0   <%  f[ T =" "I  ="
"I,,cgT]SGNyT+7
DzyTRzcgTL*JNyT+7
DzyTR
O M"#0."U)"+7D+
4]SG+L*J
>"46"90"Z[
+7D+c";
f {"46"Z[O
0Q+y0ccJk4G
+X4G9OD
f(Q+Jky>%DcP(cc

TÀI LIỆU THAM KHẢO
c LM"J"NOPPQR|6
1">  +  4    
J%T%}L/T
T85c(clygdclyy
O L  M" J"  +  "~  M"  ^F
NOPPgR J"/  ( 1">1X 5 G"
#V8"46"+4
J%T%}L/TT85
O(jydgQ
f •#€"%}•LNOPPyRJ1
8"'K8      K  ‚  :''K
NCK%KR  ‚  ƒ'  „  K„
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