[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
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.

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。. `& e* Z0 U1 U' L, G  {) u: Y
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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 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。' @% e7 @2 W% \" X
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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 - T" C) O( R' y. s  W) w
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in color and form concentric rings, or a ! G' q7 A/ Q( g+ R, h% j9 ]

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

leaves may fall off. Extensive loss & ?, I8 m# I7 C% C' N$ m

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

Symptoms of Septoria leaf spot also start 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。+ E4 X1 ?, W: i1 e; \6 F6 p0 }
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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 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。7 L& Y  T2 p2 v/ j. |
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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. . v/ I& L4 S/ V/ K- S+ e, p
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Small dark spots, the fruiting bodies of the fungus

, 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 tvb now,tvbnow,bttvb% v' |9 _# u: a

infection of fruit is rare.9 W( ?6 [5 }/ Z
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How to Prevent and Control Early Blight and 9 b8 l# x0 h- ~9 I% K
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Septoria Leaf SpotTVBNOW 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。; B5 f) c9 U2 S
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Follow the 12 easy steps below to enjoy a tvb now,tvbnow,bttvb: m0 Y( K8 N; {: c9 U4 {\" J# B* s
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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Weed your garden. Some weeds,   \5 h- \/ L: C9 b- Y" R) {

like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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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 公仔箱論壇- T4 _* T4 z5 G0 o) j8 ~# ]5 S) d
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where tomatoes were grown.

Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.% L/ @3 O" ^& ]& R* V( ?
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 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 q' a, T$ b( Y& a. z& M' w
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fungus from the soil to your 5.39.217.77:8898' H* s6 H& Z  h; b. \
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plants.5.39.217.77:8898+ F. E& b! s, H: M7 y
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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
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。; [* a1 g. E- o# G& k& ?' Q
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 5.39.217.77:8898$ m  W0 f! w, C. B8 p

overhead watering. - t2 y5 X- v) E# O3 |% K& ~
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
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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 : E: b  q' X3 ]

wet. Keep your plants happy and healthy. Weak and stressed 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。. A4 \9 [9 K. K; e\" r5 p) f/ S1 E

plants are more susceptible to disease.2 U" S7 f5 ^" q$ ^

Remove and destroy or throw away diseased leaves, both off the 公仔箱論壇3 Y- h9 T' b: l* _: V. Q5 h& X! |

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。  b6 p) k# c! _. }+ g* }

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。( [/ J0 Z; R) }/ y
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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 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。' @; T" w6 Y2 a8 j$ Z% O6 m
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to remove diseased leaves should be disinfected before being used on a different plant.

Spray plants to prevent and control the

spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try

GreenCure.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。% p" M& ]; W  s3 J8 U2 h
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Late Blight on Tomato Plants

Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato . V' x( X( h% }- C2 {+ ]6 p
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plants in a garden. Once a tomato plant

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。; P8 Z% d& }; {9 I: X
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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

can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and

Septoria leaf spot infections will also help prevent late blight infections.

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