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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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: U/ V  Z0 ~: H  m" K公仔箱論壇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。# o9 [) Z; ~6 C2 B  b. ]3 G
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How 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 tvb now,tvbnow,bttvb: v; Q% t' S" ^# B" W+ A) a

( ?/ j- [1 Y' Y/ {% T8 Cnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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: ^# b( A( v8 f. X/ o4 V5.39.217.77:8898in color and form concentric rings, or a + @2 |6 d& [- [4 a

6 H0 n2 g! j\" ?( |0 ^# q. Zbullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow, 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。* A5 p$ ~2 t- o

& [- m- _5 [. |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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/ G* G6 Z* i+ E( q9 ~How to identify Septoria Leaf Spot公仔箱論壇2 v) D  p" J3 O& F6 P+ u( d

: X6 o" u0 D: x2 ?  D公仔箱論壇Symptoms of Septoria leaf spot also start 公仔箱論壇0 Y( Q! p/ A( }" @  J

  t8 e8 h1 L1 Mon 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. 公仔箱論壇* s. T9 D( U1 O# x1 r. n

  b1 B% W- p8 E) w0 F$ r+ }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 / x' f4 w1 K" s) G' u
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and dead. Stems can also become infected but 5.39.217.77:88986 j0 `9 y\" L, K
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infection of fruit
is rare.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 D6 Z4 o. S0 M
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How to Prevent and Control Early Blight and tvb now,tvbnow,bttvb, x% U+ A/ t7 i( K6 z9 I  a

+ A( n$ @* i' `! x  \- _tvb now,tvbnow,bttvbSeptoria Leaf Spot

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Follow the 12 easy steps below to enjoy a ! z8 X, c1 C0 s: K
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long season
of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.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 h5 u* Y* z, y$ X* I

% P  F8 v8 d3 m+ n$ x. H$ Z( P5.39.217.77:8898Weed your garden. Some weeds, 5.39.217.77:88989 ~- y: s1 x) B9 ?6 F7 w: h) j: T, G

3 ?& f  n( y# }, X0 [" C公仔箱論壇like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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% I1 G0 \+ x8 W( Q/ d& h, \( F5 `) ]5.39.217.77:8898Rotate 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.tvb now,tvbnow,bttvb0 ]2 r; v: `' J' M
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
. n( @$ P  h) ~$ D, }, p# YCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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0 ]. e( {& d: X1 v) o8 h1 e, Otvb now,tvbnow,bttvbfungus from the soil to your 公仔箱論壇; F& }4 Z! O2 k1 K3 W) `6 A
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plants.5.39.217.77:8898! r' K6 P1 S; X% W( R

9 O, j( b# b  Z4 y% t, q' EStake or cage plants to keep them 公仔箱論壇! a& q8 J5 E  A1 t1 R1 ?5 c
公仔箱論壇8 a. y9 T; u* _5 B% i
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 5.39.217.77:88986 a+ X0 k' S7 _! F4 L' r
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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, g- v* o9 b' E  R  M
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space above the soil without any leaves. Do not use
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; W7 i$ ^) q2 }0 X. soverhead 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.
9 v4 z- Z8 p# s; [% L9 etvb 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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; G+ r, P8 c& l5 w1 A# n% S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 公仔箱論壇# `' g& P4 b* F
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wet. Keep your plants happy and healthy. Weak and stressed
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' A5 @' o- F% c# q. _1 Dplants
are more susceptible to disease.
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( ^2 F; W, g* f3 w/ H& m/ 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
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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 tvb now,tvbnow,bttvb+ R6 C' o3 H+ V7 D0 j* Y
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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。* {" @) i: a$ k8 x+ J4 a; j
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Spray plants to prevent and control the tvb now,tvbnow,bttvb\" f+ ]! g% G+ F3 H, n
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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9 L* q2 |3 B5 f+ M; N- i2 L

6 R8 Z1 u0 x) Y' k* y! S3 q+ o/ WGreenCure.
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Late Blight on Tomato Plants公仔箱論壇5 C- s; c* s( ~0 K
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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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plants in a garden. Once a tomato plant
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/ |" z6 J+ ]! t1 ~7 x0 E' [is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.77:88980 Z# {9 ^: n# [' G0 b( V
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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 blight5.39.217.77:8898- V# Q' y& `9 u' b. ^) H' L. Y5 Z+ I
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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8 x8 }, z# D& U公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections.




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