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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3 L6 X Z4 Y2 D, P9 e7 _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。9 ]6 v. Y6 s# z1 O# K$ O" U
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How to identify Early BlightTVBNOW 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。 t$ T: T/ a5 c3 d* G3 G
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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 ( ~+ C' U& F& F! i3 p0 g0 ~) {) R
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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 9 g- Q' b7 @: \& k3 ]
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in color and form concentric rings, or a
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, + _( a }6 A" f0 k: p
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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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( D( C, h% K# \$ c公仔箱論壇How to identify Septoria Leaf Spot
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8 v, o" x0 [7 S" E2 V! W5 QSymptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb& c5 J9 A+ y {% s
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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 公仔箱論壇0 }/ Y0 |4 j; D1 |# L6 W
) h: F( \7 ^1 d* I5.39.217.76shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. ' }! s) ?9 ` a2 Q; l0 x& d& T! D; f/ g
7 X Z4 W! ~" J, g5 _8 \/ NTVBNOW 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。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 - W6 n. d% ?$ X8 K
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and dead. Stems can also become infected but
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# S/ M4 K( c, t: e/ Stvb now,tvbnow,bttvbinfection of fruit is rare.tvb now,tvbnow,bttvb7 m s! r& D9 W6 D6 D
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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。6 Q2 ~. ^' [4 m& j( x
How to Prevent and Control Early Blight and
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; n: I, W4 s) { V& ]: {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。Septoria Leaf Spottvb now,tvbnow,bttvb4 ]: x. C3 Q" p7 c0 T1 j! P
6 o' z3 L$ J4 z' W5.39.217.76Follow 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: W9 v8 d5 s; D
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Weed your garden. Some weeds,
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, ?$ E5 D% E' Q6 w) P' `tvb now,tvbnow,bttvblike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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/ l9 j2 K6 T, ZTVBNOW 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。Rotate crop locations. Don’t " Y1 _9 V1 |0 K% H
* ]8 V( t7 i) o1 U# f/ Splant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas & w& f) g6 p( b( g- Z4 [6 ?# N: U
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where tomatoes were grown.
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
E& ~7 K- m" {" o; k" ?) e/ O5 I公仔箱論壇Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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% k) W# d- j0 ?& A! Ofungus from the soil to your ! p$ P% B, P! R- Z' X
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plants.
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* }( R% P6 u6 }8 c" K" l5.39.217.76Stake 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 2 y5 i5 o& q* o2 T e0 W* j: {
, L- ?% m! \; f" |tvb now,tvbnow,bttvbcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.76+ |& p$ {) x3 c8 u# r4 s
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space above the soil without any leaves. Do not use ) ^7 \3 u, Z3 I0 Q- d9 R2 Q9 H
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overhead watering. ) J3 Z; W4 O( K' e6 i
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,bttvb) x* v# J1 {: a; X6 x
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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fungus 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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* q) k( _* V6 I6 z& bwet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇/ v, o+ _& t2 M, W4 X2 z# Y2 [4 K
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 _7 B0 A' C3 L, ]0 I2 m3 v# v\" F
plants are more susceptible to disease.tvb now,tvbnow,bttvb* v2 c$ f ]5 s; s0 f4 h! ?
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。+ ?$ }; _ n0 W3 H7 K+ @* U
Remove and destroy or throw away diseased leaves, both off the 公仔箱論壇$ |/ J3 Q6 s& q6 `9 h, n* }
5 C4 {% C+ Z% [) s4 ?\" ^2 [; z5.39.217.76plantsplant 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 infectedtvb now,tvbnow,bttvb0 Q( d% H; J% D/ x* o
$ X4 }7 F; `\" i9 O- _+ T公仔箱論壇, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used , l4 j; d- p) i `9 F" u7 X
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to remove diseased leaves should be disinfected before being used on a different plant.$ E1 h+ Y- o6 K( K( {/ |
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Spray plants to prevent and control the 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 \ H% j( W5 h! y
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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GreenCure.
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4 T Q6 b, B. O4 V- 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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9 B& ]# _- [- v公仔箱論壇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 5.39.217.761 l( f o" G) d' V- E
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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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/ B9 n/ n3 i+ V t% m公仔箱論壇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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8 v) `8 _\" `* X公仔箱論壇 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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; w: Y0 g$ f* z5 rSeptoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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