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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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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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" Q( h0 t3 @- U9 v% @tvb now,tvbnow,bttvbHow 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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5 }6 ~$ }+ E. L; znewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown # X1 @7 L5 I# q' m" i

' u7 h7 d( L$ g& Awww2.tvboxnow.comin color and form concentric rings, or a tvb now,tvbnow,bttvb  ]5 N  S1 X) f2 y- d  `7 a

8 E/ ]! \- c+ J1 \1 t  O公仔箱論壇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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5 K; N* x+ W. e3 {www2.tvboxnow.comof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇& c1 k2 R" t7 [" h5 `. k, q$ {
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0 Q3 Q: ]! P1 ltvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start
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9 |9 H8 k' h. O- d公仔箱論壇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.
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Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb  L( Z0 e9 }  x- |+ g
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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$ m7 Y1 l9 d2 {) G1 F3 ?: a! ]" c$ [
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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。$ C  ]2 ^0 \& d
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。! e# I$ f4 W; s$ L9 k7 [$ _
infection of fruit
is rare.tvb now,tvbnow,bttvb6 a5 ~  x! U4 |

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8 j: C. t/ P' PTVBNOW 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
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Septoria Leaf Spot

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! Q( ^! s' U3 s6 y) o公仔箱論壇Follow the 12 easy steps below to enjoy a
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of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.# J$ m9 L2 Y, s% Y9 o

( u. B8 N6 w1 B$ nTVBNOW 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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+ ?5 l8 c/ {  P/ twww2.tvboxnow.comlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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3 L, _' \1 D# f公仔箱論壇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
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where tomatoes were grown.) J5 d' S7 f. Z/ `/ W( z# [. s# T
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
3 w/ A  N5 C1 {8 m# 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。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of . n0 H. z. S( E, g# ]3 e' g
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fungus from the soil to your 0 m# v( ^6 m. o' i7 A9 J! @

2 U7 v/ ~# J; @, S  W1 A& Tplants.
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  V5 Y' h  }1 Q4 `/ B- |公仔箱論壇Stake or cage plants to keep them www2.tvboxnow.com( k% U" c' t6 ]7 `

/ t8 ^0 I; [+ @, r. ?off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and , T' D2 D2 `3 T* B. ?1 K* y

( E) ~1 M: C0 A7 Pwww2.tvboxnow.comcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 2 G. Z( N* i! M- m
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space above the soil without any leaves. Do not use
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overhead watering
.
5 M* g* V2 K! b/ o6 q0 AAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ( e; T) r6 g1 u
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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0 `- S3 {; D- a* q6 v! [公仔箱論壇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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are more susceptible to disease.# n' g7 p; ^) J5 t' |* b( x
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Remove and destroy or throw away diseased leaves, both off the
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plant and any that have fallen onto the ground. This may help stop the spread if caught early www2.tvboxnow.com- B# P; D  w; r4 X9 w

; k0 j, I0 Q. E" `6 C5 fenough. If a plant is heavily infected) w7 X4 j2 M: e; ^

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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 www2.tvboxnow.com9 @! w( \  R9 o' [. y0 ?3 I
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to remove diseased leaves should be disinfected before being used on a different plant.
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: P6 G- V/ z$ gSpray 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 公仔箱論壇+ u& ^& t) _: x, S; G

' T+ X) u$ a+ T5 X) }9 ?1 YGreenCure.
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Late Blight on Tomato Plants
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 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 }2 a6 `  R. @& m3 l  {) {8 J2 \

& q7 [% D; d9 A" v# T4 Qplants 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。; [7 ^* j2 ]1 ~/ N* s" n: n; A
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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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5 E0 [! M+ r4 t. b# ITVBNOW 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。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 blighttvb now,tvbnow,bttvb- O& l. |0 u  j4 \+ v

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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb; r4 r" d4 w' ~

3 g$ s* E% ]/ P8 e7 I0 Hwww2.tvboxnow.comSeptoria leaf spot infections will also help prevent late blight infections.
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