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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0 n4 x/ J$ t9 m% s( i- J0 RTVBNOW 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。How to identify Early Blight+ z: F" p& B2 V3 d) W+ a6 p
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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
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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 " v! u( J- p" H9 [
2 F8 i3 b& u. e5 n# 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。in color and form concentric rings, or a ; c8 q j( @7 h' R3 s1 @
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 8 F% T) _# Z* [7 O5 K0 b$ \) A
, a- J5 r$ W! k' Z* h- ktvb now,tvbnow,bttvbleaves may fall off. Extensive loss www3.tvboxnow.com2 Z# R5 B0 X) p2 P9 s5 Y, M! o
0 x' [% J8 E$ W, X4 r- 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.
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2 u0 J8 k! Q6 ?9 }tvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot
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8 b' ]6 k. S. a* b5 ` A0 oSymptoms of Septoria leaf spot also start 7 a; J9 J" q' m, p7 O$ E
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on 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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: |$ V2 v% o# \1 ?7 wtvb now,tvbnow,bttvbshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center.
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! e8 U9 y, B5 Btvb now,tvbnow,bttvbSmall dark spots, the fruiting bodies of the fungusTVBNOW 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 {. t& ]: X% V: l4 P
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 公仔箱論壇- h W/ t+ L8 V7 B
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and dead. Stems can also become infected but / f* |7 A) f* o
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infection of fruit is rare.( x" F# k: E' _5 w) |# Q8 u
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How to Prevent and Control Early Blight and
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# j( I3 x1 E1 w\" t: Y* g3 i3 E6 Ttvb now,tvbnow,bttvbSeptoria Leaf Spot
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8 `, D# ^4 `3 L5 I* ?' H6 OFollow the 12 easy steps below to enjoy a tvb now,tvbnow,bttvb1 U' {! ^9 Q: A7 @
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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, www3.tvboxnow.com9 Q$ [3 w* z+ Z) \2 Z* X8 z
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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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* h1 w/ n' M) p" X6 ]! ~' N& l3 ERotate 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 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 _/ v9 m4 F# {1 K& M
: ?) M: a r* c3 l" `# T# ~, b" {www3.tvboxnow.comwhere tomatoes were grown.6 A3 q" y# U% o N8 S
2 X$ J) g/ ] U" 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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb( b4 G* A! p" r/ M% i: Y
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
7 S0 A8 p R F( DTVBNOW 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/ r q; x6 e4 a. 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。fungus from the soil to your 公仔箱論壇/ a& k$ o3 o6 \3 f+ G4 w/ q
3 g1 b5 {8 o( Q8 uplants.tvb now,tvbnow,bttvb& ?& V$ ^, R5 D# \
: e' T' a7 |% Ytvb now,tvbnow,bttvbStake 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 tvb now,tvbnow,bttvb' `0 i! l( F; \
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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
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space above the soil without any leaves. Do not use 公仔箱論壇1 d8 \, b. w- s1 d/ y, y' ~, G
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 ^4 q. z/ W0 J# r
overhead watering.
- A0 @- a2 z- G' J" l0 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。Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. $ Y- r x1 H4 N' V3 _$ p# Z8 J' g3 b- ]
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 , h4 m5 i8 O5 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 / O8 i& n$ ~( b# U$ P& O+ J
# @& d. v- Q2 s5 D( P公仔箱論壇wet. Keep your plants happy and healthy. Weak and stressed
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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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- h* r" I. p& q' ?1 g mtvb now,tvbnow,bttvbenough. If a plant is heavily infected4 g2 h/ [+ |+ ^ e, f) K8 J3 v
, ?, J. T\" h\" ]& g$ o; ^- S& f, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 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 U* {6 i' y% I5 v3 T& n! `
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to remove diseased leaves should be disinfected before being used on a different plant.
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% P0 I7 E2 j5 M3 z! G- C; OSpray plants to prevent and control the 6 `8 M\" ^$ c; e: k
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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。& {& i+ D3 O$ K. s- I9 N
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GreenCure.
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Late Blight on Tomato Plants
, B, I$ g" D4 Stvb now,tvbnow,bttvb
6 ^1 P' [4 D; d4 ?% 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 6 T# S! I9 e( n* |2 h$ K, D
5 Q$ r( H$ v- L% g( A# xplants 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, www3.tvboxnow.com# p- i" x; U% Q
" {7 ?# d* e6 O3 W9 _" F" N3 u: otvb now,tvbnow,bttvbwater-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 blightwww3.tvboxnow.com) `5 E4 j; P& l# q2 T1 A9 @4 P
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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7 x- z; b$ f1 [+ \) h$ p公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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