[生活小百科] 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 3 P, Z; G! Y8 t7 w- c5 F3 ~

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。* x2 s9 _+ @1 R- c
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How to identify Early Blighttvb now,tvbnow,bttvb4 ?6 p( h6 \( ?( `' h& H# {
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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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newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 6 n6 _& W; R& {9 q
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in color and form concentric rings, or a & J1 b; x% @3 i# H2 x5 Z

bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,

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.

How to identify Septoria Leaf Spotwww2.tvboxnow.com& I) @( ^/ s( n8 V" @

Symptoms of Septoria leaf spot also start 公仔箱論壇4 K/ I* K  z- h( `: d
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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
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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. www2.tvboxnow.com" y& |8 e% ?  Q4 ^% `
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Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb% E8 L3 s- N9 \1 U9 M* B  J5 P

, 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 K7 X0 y$ V( s2 r) X! F
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infection of fruit is rare.% M& x5 S' p5 P0 e3 d
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How to Prevent and Control Early Blight and , x6 F+ a0 J# u9 R& N0 ]\" g# `! i

Septoria Leaf Spot

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.) g+ s. P: _  _/ G0 o8 Z
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Weed your garden. Some weeds,

like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.

Rotate crop locations. Don’t   ]! b6 G& o8 I& [# p0 r4 ?# y

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,bttvb! O) t+ S* k- k) v* k

Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
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 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。( }% u# A' f& B5 v
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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。1 M; o% B, Z- S* n1 o
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Stake or cage plants to keep them www2.tvboxnow.com: n! L+ r' S6 ]( ?

off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and + [) i3 O) X# ]# W! y* 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

space above the soil without any leaves. Do not use ! V- C# s; e3 x% R0 T
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overhead watering.
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
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 www2.tvboxnow.com3 I& p0 o2 }4 \6 V! v5 H9 G
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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 www2.tvboxnow.com1 I; z3 M/ }, X! h% Y" v- {

wet. Keep your plants happy and healthy. Weak and stressed

plants are more susceptible to disease.

Remove and destroy or throw away diseased leaves, both off the
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 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。) X1 m6 w- ]; z: m& o" Q
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enough. If a plant is heavily infected

, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 公仔箱論壇8 u& m; c- G1 f5 z
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to remove diseased leaves should be disinfected before being used on a different plant.www2.tvboxnow.com9 x. Q6 \1 z' _! n
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Spray plants to prevent and control the tvb now,tvbnow,bttvb* p& T\" x3 `1 ^9 D: W- {
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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: ]' ]# z7 B9 a. t4 W: H

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Late Blight on Tomato Plants公仔箱論壇: Q! a- q# k" b) K0 Z

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 - `* T- _2 u8 f1 |( c# Q: d1 a

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。1 O  ?4 t4 A, O! L3 f
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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' v6 [& T8 i4 B. w5 v
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and ( O. a3 ]2 L/ w+ z; A, N
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Septoria leaf spot infections will also help prevent late blight infections.

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