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 - X% K/ Z, w* d/ c P: `
& Y5 n$ A5 r; |8 Y* F1 TTVBNOW 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。can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.+ X! o7 i5 [& `+ o8 Q6 j9 t
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( u1 p( H& O' A# z% XTVBNOW 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。How to identify Early Blight公仔箱論壇. G) l4 g# o* k
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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to % }9 k* `- Y7 Z; v5.39.217.76 % q5 A! \6 B3 y( n+ m5.39.217.76newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.76! T$ e* S/ v: Q
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in color and form concentric rings, or a ( j% T# Q\" ]6 q( R$ T- s5.39.217.76tvb now,tvbnow,bttvb: ?' l# U/ m- u- E
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, % q$ w$ z# B+ Z/ E# u: u. K" _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。 , t$ ^, n, ] l, T/ Uleaves may fall off. Extensive loss 7 N; ~$ I2 D. f7 A7 d2 y0 L5 zTVBNOW 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。 * h2 _8 s2 G' K; ctvb now,tvbnow,bttvbof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.7 x7 l9 R5 J- |- n
0 q5 c) w( v" X( ]+ t5.39.217.76TVBNOW 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。6 i- A. P0 k! @& s! U. Q" M
How to identify Septoria Leaf Spot5.39.217.769 ?1 h6 {$ p# n- t6 q- v
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Symptoms of Septoria leaf spot also start 公仔箱論壇) ]& ~+ R+ m6 w! M! _; e
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on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 5.39.217.76* m1 I* h5 X6 E( M& o, S& j
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shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. # ?, D! U+ P: `. c " T* {, L& p& c. w3 L0 O5.39.217.76Small dark spots, the fruiting bodies of the fungus 7 T( K, g8 U7 Z# o& v5.39.217.76 $ p8 m, a, g& jtvb now,tvbnow,bttvb, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 5 d- u! \- J5 O3 K ) X1 K; w" D3 k7 @- v0 ~& Pand dead. Stems can also become infected but - K1 L6 s- K% g% ]$ H5.39.217.76公仔箱論壇( }$ g) A7 R. }$ P0 r$ ?5 S
infection of fruit is rare.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。7 ^ Q9 p2 g$ B) q6 @
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How to Prevent and Control Early Blight and ; z @5 v* l v$ o4 P9 Rtvb now,tvbnow,bttvbTVBNOW 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。; b1 `1 C: H* J2 `2 _
Septoria Leaf Spot公仔箱論壇* r: `- r# ^3 |
; u% V4 N9 U0 e* Ptvb now,tvbnow,bttvblong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.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。5 ]1 I2 _7 b) G
0 O, q! |% w4 X! M/ L8 x' ~ Weed your garden. Some weeds, 5.39.217.76, j( X* ^6 D* d8 w. F- c j4 l
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. + r) n, W$ L9 \1 | # f- F! D5 S/ w" j' E+ ~% MRotate crop locations. Don’t 9 `3 ], x! E1 c) K1 T, Etvb now,tvbnow,bttvb8 @, `6 n1 z4 y/ w6 j4 s" A
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb3 H+ w5 l1 g# h$ C3 k ]( m/ n
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where tomatoes were grown. 2 p i# g, k0 U n- m; Q6 `5.39.217.76tvb now,tvbnow,bttvb1 ^! Y) ?+ N" B! t) R
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.公仔箱論壇8 M- u6 ?& T2 x: e- V) {; U
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 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。# ~; Q- U8 Z8 e- o" v" c6 R
+ v# E/ S( E8 M$ q7 H8 H2 X4 gTVBNOW 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。fungus from the soil to your 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。4 T8 P. Z5 |; }% r0 o/ f
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plants. ; V2 o5 c1 C) ?6 j5 e $ M8 N1 C: i8 j2 Y' g2 g* |! AStake or cage plants to keep them 7 w# ~# Z [5 s, ^1 n
+ m8 v g7 S0 Qoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes 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。! K, H( K7 K u
& Q% d2 u0 B8 `! g5 F2 ^5.39.217.76cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.76, [4 o2 _% o) \7 t; C# }
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space above the soil without any leaves. Do not use , H, ~\" s. M/ B+ |3 f7 j
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overhead watering. % }& x& [2 s+ G$ j3 [$ V! q& Jtvb now,tvbnow,bttvbAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 公仔箱論壇 U6 ]8 z% X) f3 n# H# o5 d: [% L
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 " d- u3 Y( V( l: ?: z! }8 L% |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。! S8 H" i, ?! Y. S; f
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 7 j3 n0 s9 T( M7 I4 A4 _+ TTVBNOW 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 X* z7 A; t1 x9 v3 \
wet. Keep your plants happy and healthy. Weak and stressed 3 P8 C+ {! X! n2 \ ) |+ W) R w6 p' \plants are more susceptible to disease.5.39.217.767 v* ]4 p1 c7 X9 h4 O I# {
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Remove and destroy or throw away diseased leaves, both off the $ m+ V+ {4 ?+ Q2 l9 W
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early # c1 V, w- r) j2 S+ l- Btvb now,tvbnow,bttvb 1 E5 {! C2 @: r5 g. B- O. j" n7 q( P公仔箱論壇enough. If a plant is heavily infected+ a) ]7 B; f% Y1 R# N
9 o- J _9 Q7 e8 X6 R8 X5.39.217.76, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 2 J* x C% n* i- o - F3 A9 |6 `, k& U& W2 Q4 f ^to remove diseased leaves should be disinfected before being used on a different plant.. E1 v2 b L% o% e! ~% A& y1 h9 B1 T
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Spray plants to prevent and control the 7 ^8 T5 n) A q* X( ^- X公仔箱論壇5.39.217.76+ W% p/ }5 W7 S
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try tvb now,tvbnow,bttvb0 P; M Y2 C& Y; {# Q- q' J
" ~9 W' x: i, L, g; Z% S# Atvb now,tvbnow,bttvbGreenCure.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。+ \1 H- _. S2 w5 Z$ o! w4 O
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s# `: b% z+ a; ?& `0 }5.39.217.76Late Blight on Tomato Plants z8 g, N5 `; ~0 G' ^) b& @- ?" ]- A
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato % @9 b3 t' x3 r# I0 |( s- c
# }4 h# J7 K! ?0 q plants in a garden. Once a tomato plant # [1 R( Z: ?8 X; v0 C/ v) H5 c1 n$ p
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 0 ~( J0 p: j) c$ h; {公仔箱論壇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。" f$ `8 x. Z8 v* g
water-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 blight. v4 {\" Q; H3 l) b0 K6 H, E6 Y
% X: j2 L! [. C can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 0 ^! }/ _) t2 ^" J" Q u
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Septoria leaf spot infections will also help prevent late blight infections.
