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[生活小百科] 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
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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- A) `3 l/ r( U& l/ N. C: wHow to identify Early Blight
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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 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。9 `/ |$ n! d; S' x4 c( ^

) V5 b+ R) g% C" x1 l: S7 r& f: ?www1.tvboxnow.comnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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+ Q8 _- |: _3 `" K公仔箱論壇in color and form concentric rings, or a
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, as they grow. The area around the infection commonly turns yellow. As infections grow, + Q" G- V. R2 d: e& ]4 n# S

2 c0 ^- V8 \3 S) [- eleaves 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.www1.tvboxnow.com# w- c, Q  |" H0 ?4 I

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* L6 |& k, `* }3 s& v" Mwww1.tvboxnow.comHow to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start www1.tvboxnow.com9 n( q$ ~0 f" d5 E  Q4 o+ o

  v3 `- y4 f0 ^7 z2 u- d: \- Yon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change www1.tvboxnow.com; H. k7 f$ T; N9 R. F9 z
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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. tvb now,tvbnow,bttvb8 {/ Y: _! }( X# M8 X7 X" W$ j0 s) A5 n
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。  f9 c# ~9 n+ i/ l0 f& L4 Z. @
Small 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 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。0 e! f( r' y$ ^+ h$ |, d# P

% i4 k9 @) p' a. gand dead. Stems can also become infected but # |9 F; k$ Y1 f9 e

, R: Q: \6 g9 W. qtvb now,tvbnow,bttvbinfection of fruit
is rare." ?1 k: I9 U3 l

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  G" Q# P2 I. a9 Q7 W; l3 jtvb now,tvbnow,bttvbHow to Prevent and Control Early Blight and 公仔箱論壇* i# U1 g- I2 u3 i+ T

# {. g) `+ Y. T公仔箱論壇Septoria Leaf Spot

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Follow the 12 easy steps below to enjoy a ) j7 |4 r$ `( G- u

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of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇/ f3 Z1 P9 g. r" x' o

- N' X- H! I& i9 K  @! {- @公仔箱論壇Weed your garden. Some weeds,
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0 `  M8 R4 l0 L* X7 |  u/ Olike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.0 i0 Q: p- |& c( O( w. D1 \

2 {, x- Z- ~6 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。Rotate crop locations. Don’t
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9 c5 Y' P+ o6 f. S' Lwww1.tvboxnow.complant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas
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where tomatoes were grown.
! R+ i4 g; Q( Z) H) 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。
. [$ ^' P2 u! k# F3 k$ 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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
) E5 [7 O( i9 Z5 T9 FCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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fungus from the soil to your
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& D" r1 b7 \* W公仔箱論壇Stake or cage plants to keep them
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7 N3 h0 e5 I% y, \; ^5 zoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and www1.tvboxnow.com& h# O7 p) M# }5 A8 @+ H" o

5 x' u$ y! \* @& }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。cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of
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space above the soil without any leaves. Do not use $ I1 |& ], u8 K: f1 `1 u
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overhead watering
.
( o2 }& o# y- ]" F0 N+ K7 [5 ~# W. RAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
3 e" o- h% w' B: OConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow ' w9 e+ h  V. y; w7 E% J
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fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are ( i+ X  g7 l6 r- |& w

$ ?' e3 B9 K! f$ ^% t3 ^" gwww1.tvboxnow.comwet. Keep your plants happy and healthy. Weak and stressed 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 I7 I\" b3 Z+ c6 _+ D+ ^5 v
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plants
are more susceptible to disease.tvb now,tvbnow,bttvb' b; ^/ U+ z% k: D+ l: T

/ M- Q8 g  }& Y2 o8 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。Remove and destroy or throw away diseased leaves, both off the ) \2 s  X4 h# c! K; d
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plants
plant and any that have fallen onto the ground. This may help stop the spread if caught early ' u* j) Q$ d3 f( a' X! R

. I$ v& i' N; X4 E) YTVBNOW 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。enough. If a plant is heavily infected
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, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used
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to remove diseased leaves should be disinfected before being used on a different plant.
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/ X" ^* g# \. l6 i9 P* @2 q) l5 P% |' dwww1.tvboxnow.comSpray plants to prevent and control the 公仔箱論壇  I* G3 K' c+ ?) m\" M& S

& U8 f' m+ ?2 V. T& Hwww1.tvboxnow.comspread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try : }& u5 M) Z- h/ N2 {' b* \3 @' {1 K! @
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Late Blight on Tomato Plants
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1 L  I- r) ~& P: j4 b6 u0 w; N公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
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plants in a garden. Once a tomato plant
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb; `3 h% S. I1 a' J' ?2 r2 p

2 z& e- A1 a; ]公仔箱論壇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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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 公仔箱論壇/ g' Z$ C/ d2 z; r. x  ^

& v9 @+ d* l' J4 k6 _2 R; 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。Septoria leaf spot infections will also help prevent late blight infections.
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