Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 8 T4 F3 a0 f6 J; Y% F* r9 N3 a
R7 P9 ~/ _3 D9 Vtvb now,tvbnow,bttvbcan 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 Blight
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* a+ c3 _( w# j7 JSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to www2.tvboxnow.com1 m6 G. p) [* w8 H2 G5 i
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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 公仔箱論壇" Z4 u, y1 K$ D. b
+ z+ N- q( b7 v+ v6 k' F( a公仔箱論壇in color and form concentric rings, or a
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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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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3 S' T. j! Y& H% A% uHow to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start 公仔箱論壇' A& b; J/ V- O/ G# z. ~" @
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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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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。3 E$ t0 t6 x1 n4 \" k
+ [2 C$ q8 u. V. ?! `公仔箱論壇Small dark spots, the fruiting bodies of the funguswww2.tvboxnow.com% D K$ F5 ]( @6 m, a. k0 x
$ k; F# H3 H! l, m/ z) P3 ?, ^\" S% ktvb now,tvbnow,bttvb, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry
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) e5 t% p8 |6 tand dead. Stems can also become infected but 0 G7 _4 u( a7 K, U7 k\" \
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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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Follow the 12 easy steps below to enjoy a 公仔箱論壇) ^; t# W D3 L& z9 j8 k
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.www2.tvboxnow.com% K" T$ e2 t t$ @$ V4 K
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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 公仔箱論壇* |$ {3 ]- k1 u5 D/ @
, F) u9 K4 p9 ?( [% u0 a' Splant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 公仔箱論壇" B: p% m# J0 f5 q- [: S2 m
: R# D* [6 h e" w1 a, vtvb now,tvbnow,bttvbwhere tomatoes were grown.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。$ p+ H; q4 {/ F1 [/ i" u) n# e
4 V# W9 E" [9 o! A4 P公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb% j9 |/ v! V- ]4 S7 ]2 D8 L( {/ R: z& e
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb9 w' W( K. j, j
2 c J! d7 d/ Q& B( q& otvb now,tvbnow,bttvbfungus from the soil to your
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6 N5 q1 P8 d: m/ T0 |plants.
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0 B5 @& p) { X* {( X* x; z% Z' 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。Stake or cage plants to keep them ! Z6 Y8 w) M, l& f! o# H* e3 @
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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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8 ^+ W; K; Y. V" ^' [2 bcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of www2.tvboxnow.com) o3 q% }6 h K5 K1 ?
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space above the soil without any leaves. Do not use
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6 {. C% ^; \0 L) Iwww2.tvboxnow.comoverhead watering. ) R7 Y5 O" W3 H8 v5 b0 x; S
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. " O% z% {: A2 {1 k3 N! V8 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 www2.tvboxnow.com) p8 K7 e i$ N( ` N" m' l7 y; E
/ F9 A! X, X' K. r+ `, n, J( rfungus 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+ H# A1 [8 g$ w, ]! ^* z; s+ w. i
- w: `$ Y B: |- e% o1 B" 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。wet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.www2.tvboxnow.com$ Y; ?+ [. v7 H# w1 o1 G; k9 Y5 X
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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 公仔箱論壇' `5 j$ x3 L4 Q" `$ N' T) F V
9 O G Z' {( z& |& X3 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。enough. If a plant is heavily infectedTVBNOW 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 p: c$ f! ]8 G
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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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# p* m4 B2 ~, \* }) y8 rwww2.tvboxnow.comto remove diseased leaves should be disinfected before being used on a different plant.
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& N% |- y E5 y& dtvb now,tvbnow,bttvbSpray plants to prevent and control the
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spread 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 Plants* _' L. D% P& s8 Z+ l
% |9 Y( c. J4 F6 l. j6 O公仔箱論壇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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9 U2 N4 s3 C1 w" k7 i% |tvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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, a1 N6 [5 j) n5 r9 M3 k' D- Qwater-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
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and www2.tvboxnow.com# Z; |% u! Y4 O! n Q: E g
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Septoria leaf spot infections will also help prevent late blight infections. |