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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.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。+ i- V, c. L- D. x

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# |% e; s) h+ ^* Q5 H0 Y1 jos.tvboxnow.comHow to identify Early Blight
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' q7 k! K4 [: q5 e- V公仔箱論壇Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 6 w1 Z* ?0 [$ `! w: s

1 |" B1 K# E. Ytvb now,tvbnow,bttvbnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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0 [/ C/ Z2 E* k7 `% D1 }in color and form concentric rings, or a tvb now,tvbnow,bttvb6 g: n0 a, s- m- h6 j

% x9 l4 P  H) t+ T; W3 |$ B\" ktvb now,tvbnow,bttvbbullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow,
$ r+ S- w2 ]5 S! T6 W+ ]8 @. Y公仔箱論壇
$ v/ K; N6 i* \0 d( y! \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。leaves may fall off. Extensive loss 公仔箱論壇) n4 W$ F  w0 ]+ }8 f2 v
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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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$ K, O: {7 c  X( \How to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start
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0 W8 ?1 W' d0 L4 d) C+ N3 Aos.tvboxnow.comon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvb now,tvbnow,bttvb$ _: f' Q0 A6 P0 W; r7 g* h8 i
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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. tvb now,tvbnow,bttvb  ~/ \# _1 i  k4 _

6 z; C9 B& ]/ l3 L, Etvb now,tvbnow,bttvbSmall 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 1 G# \  L( a0 C1 r9 e5 F2 T) G7 a

" [5 d" C# `. _5 H6 e8 q/ a公仔箱論壇and dead. Stems can also become infected but
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. W( Q9 o$ o1 \0 Z$ i2 D& K5 J公仔箱論壇infection of fruit
is rare.8 R0 @; c9 e. w0 Y4 [
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How to Prevent and Control Early Blight and
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Septoria Leaf Spot
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Follow the 12 easy steps below to enjoy a 3 b( Q7 {( C\" O2 X$ M% C
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long season
of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇* ^- A2 {0 s% L9 E) g6 O

+ |5 ?* ?# L  g1 d% H: L( @6 ~公仔箱論壇Weed your garden. Some weeds, 0 n+ {) G# E% E& H; P; B

! w+ [4 c0 G  ]0 f( Y+ U$ Xlike 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
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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 4 r+ i% `" i# q. ~  @, P. W
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where tomatoes were grown.3 [- A! S" S: E( Z! [1 l6 [

. e* ~7 W$ f; {, b2 E6 e3 y7 tos.tvboxnow.comGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.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。& ^( W: c: S% D' Y! b
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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fungus from the soil to your
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* E. ~" E# ^$ F# X5 {# G公仔箱論壇plants.
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( p$ S; r' V! h/ d3 _+ qos.tvboxnow.comStake or cage plants to keep them
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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 ) r: J4 L& A7 b/ m
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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 , y# h; ]' {$ r, K9 Y

8 G# A+ {' ~  U! l" D& RTVBNOW 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
0 `: V  m- w9 R公仔箱論壇os.tvboxnow.com  l7 w# {6 ?' \
overhead watering
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" c! f! c# s/ z' x; M; j5 s公仔箱論壇Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
) A) _( S8 {/ `os.tvboxnow.comConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 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。5 w5 d' x1 U$ l

" Z' {- |! T( Y3 z$ mfungus 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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  X! [5 J: s; t% b" h; Fwet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇- l0 b! ~1 w. C+ u. p0 w

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are more susceptible to disease.# R2 T) e4 n, K& n, C% s8 z

6 G6 x9 ?, Y8 S1 f8 O3 Q" btvb now,tvbnow,bttvbRemove 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 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。+ k7 i" {( _( P: e$ V
公仔箱論壇4 x$ s8 a' p/ r% x  n
enough. If a plant is heavily infected9 q+ W# T+ W' M  O6 h6 k: A
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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 tvb now,tvbnow,bttvb( x6 E$ a% `0 ]6 v

) t' b# h. @$ m% h: g  ?公仔箱論壇to remove diseased leaves should be disinfected before being used on a different 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。9 y/ E# p& s) y/ @! q5 M
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Spray plants to prevent and control the
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; [+ z) F\" y- ^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。spread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try tvb now,tvbnow,bttvb# b8 L+ f! f' [6 u
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GreenCure.os.tvboxnow.com3 j3 j5 L8 I# @, l9 A( G3 X* l
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Late Blight on Tomato Plantstvb now,tvbnow,bttvb% G& K" `7 k6 V- s1 }( M

1 c: Y- W! W* W5 P# Q! R' f& vLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato os.tvboxnow.com+ x! g3 G$ |6 g1 q% h0 _7 X
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plants in a garden. Once a tomato plant
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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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( Y$ U% x/ u0 l# J2 D9 eos.tvboxnow.comwater-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 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。0 I( p8 `6 W: h5 t. |

) f( P, D; j& S' \6 W; \os.tvboxnow.comSeptoria leaf spot infections will also help prevent late blight infections.
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