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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 7 Q3 l9 d# v1 X5 k6 v

5 D  A$ _0 w9 h! Q: mcan 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公仔箱論壇. v5 l* Q& X/ @& {

0 n3 S# Z0 E+ `) nSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 公仔箱論壇# B% {5 q- `: e: S2 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 tvb now,tvbnow,bttvb1 t$ W4 _, e3 g6 Z9 T

/ I5 e, w. ~& Z( D+ r7 }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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- V; @0 l5 R) O# Z* T) ^+ x公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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How to identify Septoria Leaf Spot: Y; Q# v8 x2 y; {) ]9 c$ \7 P- n
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Symptoms of Septoria leaf spot also start + v* O  A  Y, {' v" K% ?' j3 Q1 g
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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。' Y4 ?% }' z7 [% R

1 r0 o1 I: `, S3 _3 XSmall 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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2 l3 {6 Q9 J1 S: G* Utvb now,tvbnow,bttvband dead. Stems can also become infected but 公仔箱論壇) L! H9 O( ~: _/ K
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infection of fruit
is rare./ S3 O4 G, B$ e; i9 W, U0 F+ z

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& L- i- [; z: f/ k" btvb now,tvbnow,bttvbHow to Prevent and Control Early Blight and
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Septoria Leaf Spot

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6 h& g6 @3 l; T. A- xFollow the 12 easy steps below to enjoy a 2 W' @( G1 e8 g  }% X. Y

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of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.www1.tvboxnow.com. }4 ^7 y. v- Z

9 G8 G  ]. w+ 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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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.2 w  s3 l% W2 T2 }, [' 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。' J' i/ ]! ?5 e% d( L9 |
Rotate crop locations. Don’t 5 b% c( C1 U$ j. t4 T

. M) n5 E5 N7 }. D  Ptvb now,tvbnow,bttvbplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 2 R. J7 t/ Q1 y% ^) I2 V4 W  a3 a

" q: ?* S7 \& K$ O9 @5 W公仔箱論壇where tomatoes were grown.
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! v  q3 B. O, 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.
) l6 g. N+ i+ I: [5 S  M: ztvb now,tvbnow,bttvbCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 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。, W4 C0 y- z, s9 p5 N
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fungus from the soil to your www1.tvboxnow.com- [2 |/ b4 e7 X% h$ E/ [& Y$ R' c
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plants.
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Stake or cage plants to keep them 9 |" m8 k! R# ^/ ?

& j$ [, k' c( m* L/ utvb now,tvbnow,bttvboff 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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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 公仔箱論壇: L' X" j/ x( t! }+ @' }

! r+ h0 U  x, s- T4 }公仔箱論壇space above the soil without any leaves. Do not use 公仔箱論壇- Y* r  K! C# A2 J/ @; N: k0 b. 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。8 H6 G4 I1 c\" ~! s! a1 [$ c% r( e
overhead watering
.
! u8 N. U8 G, S" l8 S- U6 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.
# ?6 j0 K( A7 R4 q2 h4 Y' ktvb now,tvbnow,bttvbConsider 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
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" B" c5 }8 Y! C0 _' Kwet. Keep your plants happy and healthy. Weak and stressed tvb now,tvbnow,bttvb  T& ^' A3 ^0 _; s+ n  q! z( z

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are more susceptible to disease.) n$ m" }1 x8 a6 e; P/ D7 ?+ j7 _

( Z+ g# s. Q2 [! N8 o4 P/ c2 W5 j- pRemove and destroy or throw away diseased leaves, both off the
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plants
plant 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
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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 4 W/ s/ L- d, i7 y7 C; ~  Q

. `/ \" y2 s7 l2 O公仔箱論壇to remove diseased leaves should be disinfected before being used on a different plant.
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  x' C3 o( a: KTVBNOW 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 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。& v) g4 a3 U% K$ ^$ p5 `9 u
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spread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try / I+ L4 e) K: M/ F+ g. \
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GreenCure.
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- F. d8 U: p7 a. VLate 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 tvb now,tvbnow,bttvb/ E) Q4 }$ U6 U

4 l3 E2 ?/ r  k- D0 t2 U公仔箱論壇plants in a garden. Once a tomato plant tvb now,tvbnow,bttvb9 F1 r% Q* }: d7 y- @
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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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1 t1 l7 w" K2 g9 itvb 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& K7 k( @7 [6 T\" |0 G
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and www1.tvboxnow.com& T  X1 M8 f6 Q. o1 f' f! z/ a

* @5 i* g/ S& }" H% |2 @Septoria leaf spot infections will also help prevent late blight infections.
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