Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 公仔箱論壇* V' `1 E3 y( k2 g
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.4 k+ f7 U4 i. E2 J( N: R
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% M- R& j# D0 L( i9 h0 v6 Z! ftvb now,tvbnow,bttvbHow to identify Early Blight8 R3 \( P# `2 e4 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 tvb now,tvbnow,bttvb6 m1 s( X2 C6 [; v
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newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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in color and form concentric rings, or a 5.39.217.76' ]. E5 n8 K& f; d! x6 C& l
: P' r2 i8 @' \4 fTVBNOW 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。bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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9 T9 V3 o/ ^" Fleaves may fall off. Extensive loss
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇# E& _( C* k' w+ ~( I2 }% z/ t
7 r0 t* L5 {8 o9 i( N公仔箱論壇0 E& X+ s, M8 N9 M
How to identify Septoria Leaf Spot
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; T4 ] R1 c8 @/ y, L# K) |6 KSymptoms of Septoria leaf spot also start
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4 U, ~: M. i( C5 H; v. v0 _! F1 Con the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change $ e$ y2 r$ ~/ D' O
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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. 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 P3 G" E* G( T
5 z" Q6 m4 j$ m8 d9 XSmall dark spots, the fruiting bodies of the fungus
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry tvb now,tvbnow,bttvb1 C7 l8 E: L$ }4 }8 ?
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and dead. Stems can also become infected but 公仔箱論壇+ ~0 q6 d5 s( w F; n0 M\" v7 Z
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infection of fruit is rare.公仔箱論壇 K' o- Z- \* N9 a8 }5 s
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tvb now,tvbnow,bttvb% e! R9 V3 d# k" t. R9 o
How to Prevent and Control Early Blight and
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7 a4 Y4 K& U* D) [+ P# D8 M公仔箱論壇Septoria Leaf Spottvb now,tvbnow,bttvb& c+ Z8 J) N b9 Y. E
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Follow the 12 easy steps below to enjoy a
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$ F; d+ K- c5 \* ~5.39.217.76long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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4 T5 h" Z: o6 m, e* s/ I4 Wtvb now,tvbnow,bttvbWeed your garden. Some weeds,
7 h% e* T0 [. Vtvb now,tvbnow,bttvb公仔箱論壇! ? S8 B! s" v
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants." X% S1 v p( S0 L K: [! v& ]+ B
1 U% p$ y, W: o5 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。Rotate crop locations. Don’t tvb now,tvbnow,bttvb( h+ E. t( ^& g2 C
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plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas
$ o9 h% y. Z8 a. k6 F5 V公仔箱論壇tvb now,tvbnow,bttvb3 f2 Y# D, |# r! Z$ p' o( b N& e
where tomatoes were grown./ X& x, ~" F7 ?8 ]& f; E9 `
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.( j* |2 V( w- f; N2 j
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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: q. j3 t! g2 \5.39.217.76fungus from the soil to your tvb now,tvbnow,bttvb0 A1 h; f- W* t9 h8 J9 x8 t) Y
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plants.
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Stake or cage plants to keep them 公仔箱論壇6 ^/ q3 U2 J ~. Y& E6 u
" D6 e, {8 t2 v6 V2 s( y/ 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。off 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。) b9 V: B) u" `
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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of
$ j7 q- [0 J+ h9 ]+ QTVBNOW 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 }& B6 f* D4 r1 @, Btvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use
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overhead watering. 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。3 r* c% w6 {( |1 k$ e/ n
Avoid 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9 _1 ?+ M8 `$ ]/ @1 \9 P+ X6 R
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
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+ }2 R& p2 Y* [+ }公仔箱論壇fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 公仔箱論壇+ m- s' x7 E* B* w& O0 m/ O0 |
9 \. n* I5 j! D2 y$ ?8 a8 Pwet. Keep your plants happy and healthy. Weak and stressed
) f8 Z\" ~/ s0 k2 e, N: N9 j* vTVBNOW 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。
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+ f. v# V- Q) T0 U- L. j7 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。Remove and destroy or throw away diseased leaves, both off the
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early tvb now,tvbnow,bttvb6 U) Y7 } |! c* b1 L8 `/ I) T! x
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enough. If a plant is heavily infected5.39.217.767 P1 U\" A% F5 j\" t6 S1 S\" ]4 g
& c [7 H2 X. V1 j/ h8 U+ N, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 5.39.217.764 H# {) C g$ ~8 H Z
) @: q8 f& Z$ b( u% n7 k6 X公仔箱論壇to remove diseased leaves should be disinfected before being used on a different plant.tvb now,tvbnow,bttvb: |5 B* r$ d; L$ X: Z+ B6 Z u
) J1 T \! f" r! S2 l5.39.217.76Spray plants to prevent and control the
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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/ x# D# o0 I9 a, X+ t公仔箱論壇GreenCure.
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# {1 |9 t/ ]: {& }4 @5.39.217.76Late Blight on Tomato Plants
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb( d: U' C% g+ p- ^4 T
/ N( h8 D2 Q& t9 ltvb now,tvbnow,bttvbplants in a garden. Once a tomato plant
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( j1 k E! N2 u公仔箱論壇is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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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
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- j2 H1 Z, j$ @( L公仔箱論壇 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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6 x- c+ V2 p2 u5 V5.39.217.76Septoria leaf spot infections will also help prevent late blight infections. |