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標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁]

作者: 6t6t    時間: 2019-4-13 05:03 PM     標題: 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.5.39.217.77:88989 E3 P, x8 G& h& B# k( N0 s

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How to identify Early Blighttvb now,tvbnow,bttvb4 h5 {: {2 u# i! |0 _3 w3 B2 K0 r
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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 ' D' G# k! K" a& Y2 q, {7 |: c

" W; k. u" o( ]/ y$ u0 A2 `$ Etvb 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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7 Z* ]! w, @$ {- g5 E5 b, C8 T3 g9 Vin color and form concentric rings, or a 7 S\" L/ }& j  c/ u4 |
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bullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow, , R  @, o. t* s& \  _! \
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leaves may fall off. Extensive loss 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 Z! Q0 D( S% _6 l

% ?" Z; P" r& A5 o: {- A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 Spot5.39.217.77:8898) t+ Q' m1 Z; Z* O2 v

! e) ?0 [3 E2 `, h+ ?8 f9 uSymptoms of Septoria leaf spot also start
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1 W. W! l  E  r! Hon 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. 4 J! F- [8 \8 f/ J2 M/ Q5 v
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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 公仔箱論壇8 ?* Y\" C  T3 `$ Y9 j' p& T9 f7 k

$ w3 L7 Q/ Y$ z: [. q9 h5.39.217.77:8898infection of fruit
is rare.
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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
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# U: y7 ?3 u9 I\" W- 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。long season
of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.5.39.217.77:8898" I# ?- m( V2 S9 n6 k" c, h5 Q
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Weed your garden. Some weeds, 5.39.217.77:8898' T* n2 {6 W  `1 N% }6 W; z/ O

/ m. Z* U8 ?' ]! u8 P- K5.39.217.77:8898like 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 5.39.217.77:88984 }/ k4 H% h& a! 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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# y8 k4 E& q& {$ f' S8 b/ YTVBNOW 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。where tomatoes were grown.公仔箱論壇$ J$ U3 N9 Z  {8 S( x( N

+ N' g$ R/ n/ I5 L" m- }3 ^公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.4 h" \( k% f, l$ B% i
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 公仔箱論壇* g  x. h  j* F/ ?# i! W
tvb now,tvbnow,bttvb" i9 W: l5 l0 L8 ?, c  W
fungus from the soil to your 5 s4 v/ \! i+ E/ v. |$ ?( ^

0 v5 ~2 _( `' y' i0 R  Z% x! Tplants.
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0 i8 _  b; \  LTVBNOW 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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8 S7 l! s# V  Q; \tvb now,tvbnow,bttvboff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 8 V$ @' `) u" X. i; {% l+ q

* `  e4 m5 C8 C, {0 M6 e% {公仔箱論壇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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space above the soil without any leaves. Do not use : ~) K( ?6 k  c. r* n
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overhead watering
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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. tvb now,tvbnow,bttvb6 n, I( }) b4 g5 m$ ?) D
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 & Q0 E9 b  c. c9 m6 h, s

& I/ {) w: {6 P2 M+ W( ]  _$ {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。fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are   z! G0 J  t+ D$ [. N# B/ W* A

, ?; }0 j5 a( n2 N6 L2 Z/ G0 @& M$ Ztvb now,tvbnow,bttvbwet. Keep your plants happy and healthy. Weak and stressed 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 |# |! W! F$ e4 @' n# E

4 I: s* a( i6 V, B  E公仔箱論壇plants
are more susceptible to disease.公仔箱論壇) h2 q3 C, Q6 R& ^6 R( `8 I% `% k0 M

. f# X8 z9 ^5 R3 ^6 ^  @Remove and destroy or throw away diseased leaves, both off the ! T1 ^& o6 H: t  y5 Q4 O\" q
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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
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& _0 x6 r- ?2 ^) w( ito remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇0 U- x% k/ r" o- b! |: ^# v

% @* e4 [" J' Z; JSpray plants to prevent and control the 5.39.217.77:8898% J9 y. H5 q& }6 i' M: R
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spread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try 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 T6 K1 q) r2 Z

: V& M/ k3 h6 ]) x0 f0 gGreenCure.5.39.217.77:8898; y) M+ s! c/ i/ m7 p, L, g3 n; n

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Late Blight on Tomato Plants5.39.217.77:8898- p. `' X; x6 e" \7 L- u) {
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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。; D( h1 T* Z0 _; E( e
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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, 公仔箱論壇# M( c7 P  ?! t$ N$ X; P

7 }4 R7 ]; O1 w1 d3 X2 B# I. g2 L5.39.217.77:8898water-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 blight5.39.217.77:88989 k8 X% B  |4 T- c( U4 L8 q2 z. y  Z
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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" l  S5 T& Z- D
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Septoria leaf spot infections will also help prevent late blight infections.




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