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 u) `; y- e5 X$ L1 S- YHow 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 ! u8 n' F8 r! s+ w
0 e" i6 O% A3 @1 Y" lTVBNOW 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 . ?2 |# V& o8 Z
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in color and form concentric rings, or a
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, {% ]# _3 t! v5 \5 dbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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4 ]# U5 X. O$ y- Wleaves may fall off. Extensive loss
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2 _$ m8 D ]2 l& p! Nwww3.tvboxnow.comof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇" y7 {; @9 m/ ] D
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How to identify Septoria Leaf Spot# q. N$ \; \0 [* [% j) {- x# H
9 f; Y' t7 S" w1 A$ _. PSymptoms of Septoria leaf spot also start
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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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, m. z/ p: U( t7 Z8 m0 g; f公仔箱論壇shape 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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6 [8 h! @: [0 USmall dark spots, the fruiting bodies of the fungus
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8 m: Y; A; N! K* Z3 T, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry
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and dead. Stems can also become infected but www3.tvboxnow.com) I. k: @. K* Y& p4 \
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infection of fruit is rare.
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) x5 a! ^# G1 F- T% I3 b: B/ 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。How to Prevent and Control Early Blight and tvb now,tvbnow,bttvb7 h5 d9 b% p f) a
8 |- j! X3 f5 Y/ ?, a3 H( y# Y公仔箱論壇Septoria Leaf Spot
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# k! r$ J1 r0 J& nwww3.tvboxnow.comFollow 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.公仔箱論壇, m6 d6 Z0 d8 ]) R3 P
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Weed your garden. Some weeds, + p6 a1 [/ y5 {! @- J* _
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。! }; N+ F: V* L
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.公仔箱論壇; a5 H" v) i/ n' D! X
" x) ~3 I- V1 S c; XRotate 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
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. k9 t2 X7 y2 d. P, ]. G& }* d9 H公仔箱論壇where tomatoes were grown.
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.公仔箱論壇$ b: V( R* }7 s- E
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of www3.tvboxnow.com/ u# j ?8 p: e: F6 a. p, U
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fungus from the soil to your 9 k" b# k" x0 Y, V" S4 ]5 ^8 {
0 B, D7 ~+ B( {' g1 j0 F) ?- ~7 splants.
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Stake or cage plants to keep them
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3 W, e- `9 f* J+ O' 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。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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( Z% ]# a! a% f. z7 Stvb now,tvbnow,bttvbcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ) e) U3 [, ~+ d- x) ?2 p
! F }7 W" K% e6 P3 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。space above the soil without any leaves. Do not use www3.tvboxnow.com: G8 q1 E6 v1 t' @! N+ ?) L
3 B8 M' N6 f+ h& S+ Xoverhead watering.
A5 g! | e. u) Q8 Gtvb 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. tvb now,tvbnow,bttvb. Y* Z, L: Q' Z9 _* F
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 tvb now,tvbnow,bttvb" B+ d6 y" ~5 i v% s6 U i
1 n; `* W' P/ Z v) F/ ?www3.tvboxnow.comwet. Keep your plants happy and healthy. Weak and stressed
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plants 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。" l& o9 H# i" E5 W
) l j" K. X1 ~4 i( kwww3.tvboxnow.comRemove and destroy or throw away diseased leaves, both off the G+ C9 p; K* v/ n6 V\" H: l) c
7 X5 n$ T3 L8 Kwww3.tvboxnow.complantsplant 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 @( [& h2 Q8 h$ E5 a. f1 Q2 s; |
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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 公仔箱論壇/ U- M: k* |( ?
. A) L' L y+ P# a. e% E3 gwww3.tvboxnow.comto remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇4 [7 w. h# M' M3 x
& ?, R3 K) K/ }2 W5 i& w0 N% 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。Spray plants to prevent and control the 公仔箱論壇5 i1 [. w! N\" X8 @2 R! G\" R
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try www3.tvboxnow.com. j: `0 h& l' j; A4 _2 Z
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GreenCure.
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Late Blight on Tomato Plants% d5 |3 q1 [9 S' F8 L' G8 M
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato , A. E6 J% l' j+ C- K/ y4 v$ D
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plants in a garden. Once a tomato plant 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。! C& m0 o4 r: l) s- O8 S- t( n
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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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。3 C0 J- i9 l5 x% f
. \8 f4 Z* O4 x! Q8 M+ m/ f2 F can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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Septoria leaf spot infections will also help prevent late blight infections. |