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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
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.公仔箱論壇4 h% `) m# W9 V

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& L( D' O5 E9 D' k5 wHow to identify Early Blight8 d4 p/ S/ B, e/ k- }

5 A7 I8 U( J9 n( M- K$ YSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to tvb now,tvbnow,bttvb, m5 P+ x9 U6 }, H  G2 V2 z
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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
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+ D3 \# F7 u. h\" c$ ]\" @tvb now,tvbnow,bttvbbullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow, tvb now,tvbnow,bttvb: v* t  P$ f# V, {
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leaves may fall off. Extensive loss
% v: s4 n# j( }  ?( D% }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 R# T/ |6 y2 E4 c0 A8 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。of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.5.39.217.77:8898- g, f) ~$ W# v0 j( T7 S3 h
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How to identify Septoria Leaf Spot
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) ], z$ [; M  k& cSymptoms of Septoria leaf spot also start 公仔箱論壇+ k6 ^9 ~5 I! E. L* i( s

4 t3 [/ c# R( U3 c+ B5 ?2 r' ron the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 7 P0 `2 a6 M& T" b6 f" H0 r
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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 ^& E) h; p1 I) X: i

9 A' `, P: C1 p1 x. y5.39.217.77:8898Small 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 8 w. V3 Z: ?" z! a+ o4 K% X3 k

$ r1 R! |! Y$ \; h9 k2 Land dead. Stems can also become infected but
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infection of fruit
is rare.
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4 P/ l% Z7 k" d4 D6 w& P  p' r3 b5.39.217.77:8898How to Prevent and Control Early Blight and * c1 d  E, \& w6 o$ n3 ]# y

  m0 E; }# j+ C; h- j$ Ltvb now,tvbnow,bttvbSeptoria Leaf Spot
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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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# o% d) O- j' `4 L: |( [5.39.217.77:8898Weed your garden. Some weeds,
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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Rotate crop locations. Don’t 公仔箱論壇- P  [" ]( T! X. u3 ~, V, 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。; z; J) X) h9 X7 `: |
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 5.39.217.77:8898  z. j7 _9 L* ~

( i# B. l  }/ U5.39.217.77:8898where tomatoes were grown.5.39.217.77:8898" X8 Q. y( z* s& x$ `

- A8 h8 ]4 ]! I; v  {! o9 ~公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
5 G1 F3 k# O# L) W7 E( \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。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb/ Y9 q; q1 l3 N- N( g- s5 ~. z

- L4 \$ N+ d6 g' 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。fungus from the soil to your
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plants.
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1 ?, Z. ]- ]- d, iStake or cage plants to keep them
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off 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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* l2 \; O# ]2 }1 }( ~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
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overhead watering
.
& {  U+ ?: h% |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. ) o! ^& D) r, i+ 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
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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
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- z/ O8 n2 m4 z* V- O3 \5 s, q5.39.217.77:8898wet. Keep your plants happy and healthy. Weak and stressed
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are more susceptible to disease.tvb now,tvbnow,bttvb9 V1 B& u3 T, n: q: }! H
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Remove and destroy or throw away diseased leaves, both off the
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plants
plant and any that have fallen onto the ground. This may help stop the spread if caught early 5.39.217.77:8898- n/ }9 `9 n4 y

3 k6 o( N0 E3 m- O4 Tenough. If a plant is heavily infected公仔箱論壇: a( V* w& x# D1 U) B5 w8 n

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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 7 \) q$ P/ p$ @% \9 N2 f; p

  u9 |% W' `% e: |3 u# z  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。to remove diseased leaves should be disinfected before being used on a different plant.
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; R/ X/ Y) n" M' }- `1 G' UTVBNOW 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。Spray plants to prevent and control the 公仔箱論壇* ]\" u5 ^' I- q9 Z& T8 W
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spread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try 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。6 R3 G( h" H  Z# n: Z6 ?; h

  B  W& g; T) o; V5.39.217.77:8898GreenCure.5 N! w# M# l. d/ L: m' t, s
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Late Blight on Tomato Plants5.39.217.77:88983 e  m2 H% x2 U; e

1 ?5 _' n7 S) C& w7 M# [2 W$ 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。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" k7 ]5 p& P- T) S! m
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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公仔箱論壇  @& K) e4 `3 V* g
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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2 b" U. K. q$ g6 D# }3 v6 ?
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% ~2 G' M! O, {' d$ }, `
Septoria leaf spot infections will also help prevent late blight infections.




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