Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 公仔箱論壇6 z. D6 F0 N" {5 a0 O9 f
/ J* Z c# n! h8 ?; {can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.9 h0 L, d/ c/ G
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How to identify Early Blight9 f( i! C9 u) f- ]* j {
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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
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; i2 o8 U- H4 ?5 Z: k3 \5.39.217.77:8898newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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in color and form concentric rings, or a 4 }5 g! n6 I. j
\" N- H4 W% F+ b. D5.39.217.77:8898bullseye 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。1 t% x7 N5 G V, Z
2 {3 z8 U7 D- L$ ?5.39.217.77:8898leaves 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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, C4 I9 A* ^4 C. c7 D4 ptvb now,tvbnow,bttvbHow to identify Septoria Leaf Spottvb now,tvbnow,bttvb- p' G3 q* h9 S& Y( J, L
Z2 d) g. Y2 l2 O. h& c5.39.217.77:8898Symptoms of Septoria leaf spot also start 8 m3 {' d) k3 P7 x
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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
6 B1 r) P. O H( p5.39.217.77:8898TVBNOW 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。! U" j5 d2 W2 s1 |2 w6 y9 M
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0 P$ z' B8 {. w- U2 C3 W6 p
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Small dark spots, the fruiting bodies of the fungus2 ?7 m: n, E* [% k( l8 h, F
* x& R/ W: ~: u) E9 n+ J, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 0 N x* m+ y3 s- H
* x% w! Q+ V, D4 L0 oand dead. Stems can also become infected but
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5 H3 {8 H$ c- Uinfection of fruit is rare.公仔箱論壇+ ~+ w0 l0 x4 ^6 P3 {4 P
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8 G. U* E/ ~1 R8 Z) u! vHow to Prevent and Control Early Blight and
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: V! y5 ]1 w$ D! Z* {) j; i5.39.217.77:8898Septoria Leaf Spottvb now,tvbnow,bttvb- ^5 R1 R0 }4 k
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Follow the 12 easy steps below to enjoy a
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇6 ~) n. p, N+ H. X+ x
, {+ _. M1 k/ q" e& d- Dtvb now,tvbnow,bttvbWeed 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.. j* }! B8 s6 R" J; M
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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
3 I( }2 x) i! h3 o( {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。3 h& ~7 r0 D: n* h4 Y
where tomatoes were grown.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( s( j+ f6 @* q
7 a6 ^8 V! F% i4 |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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb) E# u2 S& z3 k8 `9 x( C* X
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
4 }! G% C8 X, u3 y( \$ @0 }! z公仔箱論壇公仔箱論壇4 E7 u4 o8 G8 P& z* i$ y
fungus from the soil to your
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plants.tvb now,tvbnow,bttvb* r) ~; f- O! {* r3 R
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Stake 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 tvb now,tvbnow,bttvb$ D% m: }* g j$ N
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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 5.39.217.77:88986 \" j& P6 _6 N; ~8 m- S3 {: i$ ]7 \
% F8 l r) n% k( H& u0 Bspace above the soil without any leaves. Do not use 5.39.217.77:8898; F# B+ Z1 i2 A/ Q }8 I6 q
- B0 t* U0 C# d+ }5.39.217.77:8898overhead watering.
0 F. B8 {( E" z5 OAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
! n% M0 M2 Y8 H/ q. B! pTVBNOW 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。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
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" L. `; \- ]7 z4 k1 r/ c' Rfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are / o" g4 Y, O! k- H. D/ L$ U
& b- Q$ m4 r9 G9 K6 s: {* K4 o( dwet. Keep your plants happy and healthy. Weak and stressed
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. ~/ |: q- F& V$ l% O, h4 v公仔箱論壇plants are more susceptible to disease.
! T7 u6 d- Z. a0 [' X/ U& D5 mTVBNOW 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。
* z: ~" M4 N# h! M: L6 E, m! BRemove and destroy or throw away diseased leaves, both off the
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' G* w% N8 S6 q, b5.39.217.77:8898plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early
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" O N/ F3 m# ?* T% |7 n4 t6 G. 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。enough. If a plant is heavily infectedTVBNOW 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 L4 Y6 c& b4 t) R0 K% U3 v# L5 O7 e! H
0 A' ]; r0 a: s1 n, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 5.39.217.77:88983 D2 [+ X+ G3 A+ j* u8 Q, J
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to remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the + T/ ^3 g1 E7 J/ t' N0 y\" x
0 d7 g$ R* r6 y+ `0 h6 t) i. _spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try . q" `" w3 p9 O- p5 p
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GreenCure.7 K/ l) s8 ?5 V9 n& ?: s8 d* j
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t2 u# {- | k* _, B2 o+ h5 Y Q5.39.217.77:8898Late Blight on Tomato Plants5.39.217.77:8898( H7 b9 ^7 q8 W
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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。! c, \" E7 y: ~, H
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plants in a garden. Once a tomato plant / d Z1 }: n5 e# `+ c. ~1 H5 M
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 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。! Q; K: |) b+ Z8 x$ J9 _7 ?; Y
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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
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Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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