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[生活小百科] 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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9 Q; b; S5 \% E" }$ b- \3 p( x+ [can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.- F7 b% _2 V$ G7 a  T: A% ~9 x
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How 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
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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5 {# Q5 P, w  v% i$ n0 h

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bullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow,
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& j! R. o" P# v+ A3 Tleaves may fall off. Extensive loss ! X0 h0 W* D+ X& t. p

. M8 B: K1 Q) k  f5 bTVBNOW 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.tvb now,tvbnow,bttvb8 U  K( g" L+ I( z

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How to identify Septoria Leaf Spot
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Symptoms 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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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。6 E6 h+ r0 H' m. ]0 n# P

9 `( P" O2 a6 U9 F& p9 Z! ~Small 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
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and dead. Stems can also become infected but 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。# N7 ]9 ]' ~5 N\" d4 J

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is rare.www1.tvboxnow.com, e0 [; b# y& b3 l( S

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9 \9 S, r, |2 i3 p. mHow to Prevent and Control Early Blight and
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3 B& \\" Q4 M4 L9 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。Septoria 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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8 W: U3 Z0 ^2 @& eTVBNOW 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。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.www1.tvboxnow.com4 r) l* @% S: P( _5 S; Y

& k5 i- ^8 u3 L! l9 p( q$ S, {Rotate crop locations. Don’t
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7 L5 x. o  y& m' `! [. d; Tplant 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。3 w- e1 _+ }. {8 F# s( w2 u8 k

5 i/ q3 _( ]- X. \& Utvb now,tvbnow,bttvbwhere tomatoes were grown.
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3 J) z3 h2 E9 x0 X1 [: S  swww1.tvboxnow.comGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
9 X& t. f: ^5 _9 i! ACover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 9 J9 c, H# h9 d1 E
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fungus from the soil to your tvb now,tvbnow,bttvb+ l7 U+ k& p- V% d% [/ j
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plants.' l9 `5 P, o4 i% F

: T5 z/ m0 Q' D& h$ \2 M% f0 ], T# 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。Stake or cage plants to keep them
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9 t! n+ t% L6 I0 ?! e& i* Wwww1.tvboxnow.comoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and tvb now,tvbnow,bttvb5 k6 Y% p. }  K. Z
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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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& t: g* j2 W1 m( }www1.tvboxnow.comspace above the soil without any leaves. Do not use
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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. www1.tvboxnow.com) N  u: R$ [' S! w/ |: ^
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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4 r0 Q% ~, ~9 }/ j6 BTVBNOW 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 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% I  [' p% m. G# B

( }% t7 T  c( j) q  G: y# m4 }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。wet. Keep your plants happy and healthy. Weak and stressed
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are more susceptible to disease.
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% E9 G' G2 v9 s& btvb now,tvbnow,bttvbRemove and destroy or throw away diseased leaves, both off the www1.tvboxnow.com0 |. R0 r3 S\" g4 x' o

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plant and any that have fallen onto the ground. This may help stop the spread if caught early tvb now,tvbnow,bttvb/ Q8 I6 `8 K( o6 k" R

, I( p+ G: u2 L4 menough. If a plant is heavily infected公仔箱論壇* h8 `\" R: \& c) x( ~
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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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to remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the
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Commercial fungicides are available. For organic gardens, try 3 x* G2 f/ N8 I' C

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! B6 r+ Q6 ?# lLate Blight on Tomato PlantsTVBNOW 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。  \8 S- a' O6 M! ]) }
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5 i8 D% {% U  P

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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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4 p$ s; c1 P7 I+ Z7 I$ Wtvb 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 blight# N) W# |( t1 F; l
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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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0 E6 u% o8 O' Q4 uSeptoria leaf spot infections will also help prevent late blight infections.
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