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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) p3 m. P$ x) O9 p0 B公仔箱論壇How 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。/ m& N0 N1 f; u
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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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- F4 I h! ?4 N6 ~3 fin color and form concentric rings, or a * Z1 c3 Y7 v0 r3 E0 ^) d\" X
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ( m C) n$ a; d- z7 t7 h# A
2 H# J" p1 q6 w7 qtvb now,tvbnow,bttvbleaves may fall off. Extensive loss
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, ~0 g1 X2 k8 vof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.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。8 ?% U; C, P: O2 B k5 e8 P
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) R' T3 i3 d* UHow to identify Septoria Leaf Spot公仔箱論壇: Y3 _+ {) x2 a- F
! H/ k+ J5 i! C) d4 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。Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb- ^( t& ~4 w' e6 V$ j: ?
3 F. c; i+ T4 A' h, Fon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change
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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. 公仔箱論壇6 e0 Q4 C. p/ H) q1 R3 X
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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 0 g5 j$ L) C; G1 w# w
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and dead. Stems can also become infected but
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: m' v* C* s8 b- _( j3 s( Q5.39.217.77infection of fruit is rare.
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How to Prevent and Control Early Blight and
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Septoria Leaf Spottvb now,tvbnow,bttvb% r9 d$ p2 Y& I$ g% u+ z- n+ R
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Follow the 12 easy steps below to enjoy a
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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Weed your garden. Some weeds,
3 o1 a ]1 t( I, Z1 xtvb now,tvbnow,bttvb5.39.217.77+ ]; Y3 X: P6 h# |. j& B2 m% T
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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" Q: j& c2 H, a3 l3 vtvb now,tvbnow,bttvbRotate crop locations. Don’t
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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 ( i$ [5 C4 Q. u+ v
* W2 |9 P+ T; }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。where tomatoes were grown.
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8 p' W3 B) M7 ]* V8 @# l5.39.217.77Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
7 L' o- D+ `* v" N8 iCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 9 m8 ?- H t, x& M' S0 p0 T
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fungus from the soil to your + y7 [, F- n$ j8 `* }/ v
, i+ \, X% U9 v. ~/ _9 ?公仔箱論壇plants.tvb now,tvbnow,bttvb" k H* i9 r! W; s0 ]' R$ z9 R
" x# \. m/ v! h, y1 s6 y5.39.217.77Stake or cage plants to keep them
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& e* c! J. i w+ f) {2 y3 U5.39.217.77off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and
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" a3 [9 a( z a6 Q% _5.39.217.77cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.77/ o, k4 I* K. z0 ~/ ]
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space above the soil without any leaves. Do not use
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overhead watering.
0 |: @* y0 J2 K! Ctvb 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.
6 Y, i& B! ~5 X- \: d" C- v- A" _! xtvb now,tvbnow,bttvbConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow ! s3 i* e& [; a, b$ x- \+ A- `
/ t: w+ u" d0 m. a4 Mfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are
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wet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.
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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
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enough. If a plant is heavily infected\" k& g7 r* k8 l. C6 c$ |
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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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9 d! D- X7 ~- i+ J( ]# |- @+ Ytvb now,tvbnow,bttvbto remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇3 V4 H) }: V/ e! z$ N' I8 q# i
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Spray plants to prevent and control the
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# O9 h/ d2 v) Y\" B8 i5.39.217.77spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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5 o4 e% @; S1 e公仔箱論壇GreenCure.
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# Y% t/ m7 V2 {0 T- \1 p/ D* |公仔箱論壇Late Blight on Tomato Plants
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2 Z( K8 z( a) V% D1 f4 S公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 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 u4 S9 V7 m) ^4 j: y, q7 Y
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plants in a garden. Once a tomato plant 公仔箱論壇( N- ^. e' D* n1 K$ y& D) z4 P
2 q6 {) D3 A/ atvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb0 q8 z9 x$ G8 J" b, K0 b! B
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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 blightTVBNOW 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。; o' d+ I1 u5 E7 Q4 R* f, V4 y3 U
: R& w- Z- }6 Q) i( m* A can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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! ]/ B+ P3 L6 V; B; L& J* P2 `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。Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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