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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
1 p. h% b' g7 STVBNOW 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。公仔箱論壇; H, V+ L, u- J" c
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.# |% E0 k. V/ f) G

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9 H+ w* K+ T2 o9 V5 I公仔箱論壇How to identify Early Blight公仔箱論壇* W" u! h6 P  q4 z/ D

  q  L; u1 A2 l; z+ L: b4 {- @5.39.217.77:8898Symptoms 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   V! K' ]$ e- |" X0 d# m
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in color and form concentric rings, or a % S6 _: O5 Z\" \

' a2 n\" v\" X  ^$ {9 w+ H  v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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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
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Symptoms of Septoria leaf spot also start
3 V3 d+ l6 L  s. {1 R$ ?5 H, ytvb now,tvbnow,bttvb
3 s; z+ L) w; a' x6 tTVBNOW 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。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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' |' O# n+ K- |" i" J5.39.217.77:8898shape 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。" H" r4 H# e7 L6 E3 n! `

  n  u! X0 q0 W" }" W) A+ SSmall dark spots, the fruiting bodies of the fungusTVBNOW 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 d. h; K$ V# ^7 ]\" q! J

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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 0 L, C7 r4 u! [( u, J$ [5 C5 X
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and dead. Stems can also become infected but
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infection of fruit
is rare.5.39.217.77:88981 X" T9 o6 q, j6 z
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How to Prevent and Control Early Blight and + V& @7 U, |% S2 X/ {# u+ E' U$ i1 r
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Septoria Leaf Spot

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Follow the 12 easy steps below to enjoy a 5.39.217.77:8898* D- p8 r$ n5 F% ?5 I9 Y
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long season
of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.2 a- a7 ~, c& K2 z& {

* \8 y& Q9 Y: X+ WWeed your garden. Some weeds, 公仔箱論壇" s2 z# u$ _8 @! |: p( ]# h

5 Q1 W. l; e: {* Slike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.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$ h5 @# P4 O* Z( @! j0 P' Y' N

* c7 H6 t- c4 g5 V3 yRotate crop locations. Don’t 公仔箱論壇% h: W. V8 C/ t4 k, B* r

2 E! D0 J$ Q% h6 t# \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.+ p2 i6 V1 ^- C# P6 @8 D' S1 s
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.% G2 F2 n7 z1 Z4 Q
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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plants.
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Stake or cage plants to keep them 5 }5 O+ z" a+ N: R7 |7 t
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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 ) O4 ]% W1 H0 G( _8 c( L4 }

* x0 B* h: _, c' X8 g' a' ^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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. p. R7 z% V7 r& r  L5 a% [公仔箱論壇space above the soil without any leaves. Do not use 5.39.217.77:8898' c& z% Z7 V8 F8 \+ O/ h

3 T0 m3 [: A0 R5 O\" aoverhead watering
.
7 Y- A3 y6 ~: F8 u: {' Dtvb now,tvbnow,bttvbAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
3 D" L- h+ F# T. uConsider 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 D! W: |3 K) J2 n' 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 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。$ n+ y, j6 S/ `4 V  g) a& C3 S! ?
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wet. Keep your plants happy and healthy. Weak and stressed tvb now,tvbnow,bttvb4 g( x1 w* N, C; ]$ G8 W9 C8 w0 j
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plants
are more susceptible to disease.5.39.217.77:88980 ~7 _; G1 ~7 u# }- X

9 P2 u7 o; c, u* N* c: i) STVBNOW 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。Remove and destroy or throw away diseased leaves, both off the ! F$ K$ F( Y( E: `+ S4 C# T

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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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( J, E( ]* O. w3 k# t0 Oto remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the 5.39.217.77:88984 G: {- x1 d9 Y( O8 P$ U  o: M

- j% ~# d5 S+ 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。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。4 y2 X& D2 H. [4 F
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GreenCure.tvb now,tvbnow,bttvb9 Y0 C. d6 }: O- J3 G% U* A* W

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, @  d0 m( j; Z# F% f% STVBNOW 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。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
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' X  k  M  s: r2 _公仔箱論壇plants in a garden. Once a tomato plant 公仔箱論壇. A9 q- b7 N0 b- [. z

- p) t" ?1 o& M6 A" h1 f$ i3 yis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.77:8898) [! c1 }+ P% J& C2 h2 D3 R+ {6 K
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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 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 , a4 e0 g6 E  S/ f$ p# A: `

6 x2 R- H, ?, a9 pSeptoria leaf spot infections will also help prevent late blight infections.




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