標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁] 作者: 6t6t 時間: 2019-4-13 05:03 PM 標題: Early Blight and Septoria Leaf Spot on Tomato Plants
Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but , D- d. {9 H& B8 Z- Utvb now,tvbnow,bttvbtvb now,tvbnow,bttvb" t2 ?! I* a! [6 P
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。/ R2 k$ T6 X% m x, s9 d0 x
5.39.217.77:8898( h5 R# O8 W8 p! }. s& }- _% B
5.39.217.77:8898$ B' z7 v/ D8 |, V7 ]$ x
How to identify Early Blight公仔箱論壇. d3 w) T) B0 a# J. H
( {! b2 Z* X$ u+ Z' T: K+ ySymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 5.39.217.77:8898) D7 n }0 V' p% {
9 H5 E Z4 s+ \+ k% kTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown " C+ t) L3 v0 _0 [: N% l& G6 R! U, V# O
in color and form concentric rings, or a - {. |: H8 m P; kTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。- w# t2 _# l- a4 M* q9 S$ H8 `( l
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, - h) t P o$ M' y5.39.217.77:8898 ) n M* F8 U4 Y- kleaves may fall off. Extensive loss . e$ \( K* D4 y' l% a1 N& J& T+ V2 I
( G' ]. _0 b6 R" H" dtvb now,tvbnow,bttvbof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 2 i! d, E0 v# j, y6 a# ^+ H公仔箱論壇tvb now,tvbnow,bttvb7 F u, g7 @% F: v3 H5 @
) K. @, H/ y2 V/ {# k
How to identify Septoria Leaf Spot & V' e# o7 O: P3 L' Z公仔箱論壇5.39.217.77:8898% \+ Z, `$ ?+ _4 d1 n
Symptoms of Septoria leaf spot also start 7 Q- m, K0 J' @, E4 N) M" L# _公仔箱論壇 1 t% u- g. v! k* l. X& ]5.39.217.77:8898on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change / X% O% T7 r$ s& e' ytvb now,tvbnow,bttvb* I% t0 [) _6 H2 C/ Z% f
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 公仔箱論壇) E, R6 Y* z( Q9 p5 k
( p: m' m! }! ]8 E7 K/ Ilong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. 2 W; m, B) }/ e6 \2 w: O5.39.217.77:8898) T% J8 S0 L+ U8 t2 Y% u/ x1 I Weed your garden. Some weeds, tvb now,tvbnow,bttvb: y" ?, @3 G) q: x! q
' _( o0 P1 u9 `+ gtvb now,tvbnow,bttvblike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants." `8 T$ V/ m- q* U+ R& J3 r, E
; \% g5 r" U3 ^ I8 Ztvb now,tvbnow,bttvbRotate crop locations. Don’t 7 }# A" ^) ~ O! m( [5.39.217.77:8898tvb now,tvbnow,bttvb) K2 j* s! ]0 f W
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas , n0 K* r. ?9 h! y 9 N/ G/ {3 r' K7 Rtvb now,tvbnow,bttvbwhere tomatoes were grown. % f+ o/ G _" x2 ?( t - t2 P* `/ n$ K5.39.217.77:8898Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. ( z/ `# B! v0 _0 cCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of ( m8 D( e" ^! z, A/ m. c0 \( ~, O! ~) t
fungus from the soil to your , o4 L; P, C' b$ W: H" a9 x
! u5 ~2 z* k* `0 N( E6 ~! m5.39.217.77:8898off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 9 q9 T$ e# \3 _2 ^TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。2 F+ j8 z8 h* ^/ s* {" _/ u6 M4 y
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of # E# B+ l) f d, b4 k0 m N, u: _2 }5.39.217.77:8898tvb now,tvbnow,bttvb1 k4 U( J4 K) S) b1 H% p$ \
space above the soil without any leaves. Do not use 0 v- |$ P& t8 }tvb now,tvbnow,bttvb公仔箱論壇+ u/ ]3 G\" t! t/ ?- w+ Y- a
overhead watering. 0 g3 J7 a5 Y' J& U" l- H0 Q% Z) f公仔箱論壇Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. }5 Q/ }( c, s& P5 ]) u
Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow tvb now,tvbnow,bttvb' L- P" o6 H3 d7 |$ `2 e) q8 R
公仔箱論壇 B! }: K9 V! q( B- k& C' d* H4 j
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are . k x0 j& Y! X+ J9 r# Btvb now,tvbnow,bttvb* t! Y5 q: ^, p% ~! l6 J% c! v6 ?2 W
wet. Keep your plants happy and healthy. Weak and stressed i9 P9 c$ Q0 P) K, Ktvb now,tvbnow,bttvb 3 ~- d) h9 Y& J3 A8 v公仔箱論壇plants are more susceptible to disease. 6 j4 K( W/ m# ]3 |* u6 A5.39.217.77:88989 \( q, a2 Y7 X+ _! m6 c
Remove and destroy or throw away diseased leaves, both off the 5 B6 P/ e9 M9 ?& v& Etvb now,tvbnow,bttvb & O' m& U* g4 r: K! Z, |' kplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 6 v: `/ j9 ?! n$ _- R& b
tvb now,tvbnow,bttvb7 C1 A3 _! _$ ^: E2 ~7 R3 [7 @4 [5 W
enough. If a plant is heavily infected5 t0 F0 f8 {; w }3 @
m% {+ t4 @% ^) \1 iTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 2 a0 {# |4 q: |) t! O8 WTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 ( X4 |# U% Y6 ]2 l7 h& }- s7 ^to remove diseased leaves should be disinfected before being used on a different plant. - Q' @& t; z, @3 R0 Otvb now,tvbnow,bttvb5.39.217.77:8898! t9 j6 S' y: f
Spray plants to prevent and control the , I8 v9 |0 S: y; R9 G+ E6 `5 q' t1 f4 r' u$ K& @/ [) Y
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try $ \) ^/ N i! D8 N0 q5 t- g) F6 Atvb now,tvbnow,bttvb 0 ?4 `& c+ {2 C/ `9 y# itvb now,tvbnow,bttvbGreenCure. 5 h/ t, v! Z) m- o' `# Ttvb now,tvbnow,bttvb公仔箱論壇" ~7 C1 p& C" a: F( i0 \/ y
5.39.217.77:88988 K. J1 f3 T, A* e
Late Blight on Tomato Plants # @4 H8 {9 f/ N& j$ r2 Mtvb now,tvbnow,bttvb) I, H. n6 c, S4 K
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb' g: f9 V" B, g' b$ m
. D2 e6 z) p6 d* \$ Bplants in a garden. Once a tomato plant 7 i: _. A. h- n9 p3 o/ j5 ], m4 \5.39.217.77:8898 9 `1 L+ B2 y; L! J3 U4 R! ais infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, $ I& B5 e! O( m% C$ I5 ? C . U% Q" s! A9 D! e1 ntvb now,tvbnow,bttvbwater-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blight9 M* e' `6 }0 e! J7 F% G
# I( F q$ T6 h+ p9 |4 v5.39.217.77:8898 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。& p5 @" k' `: }0 D% X7 U8 h
* G1 a; F5 v2 p2 E% K' |) h
Septoria leaf spot infections will also help prevent late blight infections.
