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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 5 T; R0 m, S$ J

: m: f2 p# W/ }' s; |1 MTVBNOW 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.
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How to identify Early Blighttvb now,tvbnow,bttvb3 @. n. l6 q. D, s# G, i) j4 q
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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 5.39.217.77:8898* U0 D/ p, |# s* Z

5 @0 S# }/ I6 cTVBNOW 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。newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.77:8898) F( ]( v, i8 x7 x9 ^8 m
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in color and form concentric rings, or a 公仔箱論壇/ M* s, M  w( b. l, V# z) D2 l
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bullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow, 5.39.217.77:8898- Z( {0 x* p$ _5 x2 C6 d
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leaves 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.
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4 U- [: A, ]0 g3 B4 \tvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot
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0 ^6 J" x; ?) E9 D' z% L) U7 X) \公仔箱論壇Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb) N5 Y: Q) S3 w6 A* f5 r

- z7 ]1 x9 T7 v/ M- jon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvb now,tvbnow,bttvb  i3 D$ s' X/ ?
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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. + s4 A8 B# m+ d% b: x( P
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Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb4 d  b4 ^- m9 ?) b# R8 `; n

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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 3 A2 i4 G6 S  F+ W

( _, F; ]* c+ M6 `! r% ]# j5 U6 U9 S5 K5.39.217.77:8898and dead. Stems can also become infected but
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infection of fruit
is rare.
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How to Prevent and Control Early Blight and
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7 O5 ]0 c) P, B; Z2 _公仔箱論壇Septoria Leaf Spot

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; Y2 [- S" V+ X8 p9 T. ~. F公仔箱論壇Follow the 12 easy steps below to enjoy a 公仔箱論壇0 z3 `! }\" [9 f; X/ N. v
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long 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 n- K: m# Z6 K! X

' b: f( D- j; B, @Weed 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
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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 5.39.217.77:88985 K- _, O( L+ r! k' r

9 l1 F6 R% Y# e' j5 i9 Ktvb now,tvbnow,bttvbwhere tomatoes were grown.% f# ^& `) p) V7 j; ]2 y

- R6 l% V9 u& Q& d7 l' R0 U公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.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。+ \# N2 z! g; i3 V* B3 r
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb7 D+ `0 G  S3 D5 b, m

: F5 h+ M9 @; Qfungus from the soil to your
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6 [8 F/ Z' u. Q" @$ ^# ptvb now,tvbnow,bttvbplants.
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0 o! u$ w/ O3 `% n$ C1 ~6 b# l5.39.217.77:8898Stake or cage plants to keep them $ x; A, z# l6 P5 i1 w; y
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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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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.77:8898' |3 d4 q4 |  Y+ e5 \6 t2 \
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space above the soil without any leaves. Do not use
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3 X! \% b: ?5 koverhead watering
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Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 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 E! G  P. C. J, w: ?0 Q3 Y/ g
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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2 ^5 U: ]9 }, A* E$ j公仔箱論壇wet. Keep your plants happy and healthy. Weak and stressed
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are more susceptible to disease.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 K; P3 @+ N9 x" i& g: o

+ m& `: m5 z" z# D- |公仔箱論壇Remove and destroy or throw away diseased leaves, both off the \" `4 K& u. y1 p! S& b4 n& R
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plants
plant and any that have fallen onto the ground. This may help stop the spread if caught early
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4 m. Z% w# W2 ?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 5.39.217.77:8898: r* c% r8 H9 N% A  h: {
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to remove diseased leaves should be disinfected before being used on a different plant.
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/ t4 A  S  E& j3 S+ ?' r! w  o公仔箱論壇Spray plants to prevent and control the 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。, l% B8 \5 P2 _

. k\" g* G0 h' f0 ]tvb now,tvbnow,bttvbspread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try
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GreenCure.
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Late Blight on Tomato Plants5.39.217.77:8898. f* \) t5 b' r4 x

  H0 _  M, V5 l# \( S0 k/ X4 W: HTVBNOW 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, 5.39.217.77:88986 p) r4 N% V  j# g1 d* N

2 q/ X3 e! w& c+ {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 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。7 U4 b# C% r; A% V$ z2 k
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 5.39.217.77:88983 t# C1 c( f' L: w

6 t" M1 ?& ~7 r4 S& ttvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections.




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