[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.公仔箱論壇9 u& K7 g+ s$ Q  p6 V

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 7 S5 L" S7 s4 T8 P8 S& p

newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown & f4 E+ I! s  C6 m

in color and form concentric rings, or a

bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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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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How to identify Septoria Leaf Spot

Symptoms of Septoria leaf spot also start
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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.
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Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb/ A3 `: T( k+ [\" J\" z
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 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 i. d9 A& u/ ~* ?
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and dead. Stems can also become infected but
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infection of fruit is rare.9 I3 `; E  ~# u' I
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How to Prevent and Control Early Blight and
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Septoria Leaf Spot公仔箱論壇. }% m. O& V" T

Follow the 12 easy steps below to enjoy a

long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.tvb now,tvbnow,bttvb+ T" H# v0 w) b- d7 e

Weed your garden. Some weeds, 5.39.217.762 c8 O' G; ], ~1 m

like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb, k+ q; |6 a4 D

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

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.
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

plants.

Stake or cage plants to keep them , v& t; F, J  q* v

off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and
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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
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space above the soil without any leaves. Do not use 公仔箱論壇6 }, t\" V' r\" g( n+ Y

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. tvb now,tvbnow,bttvb3 `  A: M- j) y4 z5 u& D$ S8 `
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 . B  a4 F) N' X
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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 公仔箱論壇- M. W, I6 Y' ?4 ~

wet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇2 z- z: e. l% V- X0 P
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plants are more susceptible to disease.公仔箱論壇9 d* h$ U* ~2 b2 r
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Remove and destroy or throw away diseased leaves, both off the 公仔箱論壇8 m) a- R! [! P
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early

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
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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 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。- T6 e3 C( W8 a- K

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。- H3 k3 M: x1 i, ]' R" u
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Late Blight on Tomato Plants5.39.217.76  u2 @! {9 |8 D% i* y
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato + a" {3 `. K9 i7 _; }
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plants in a garden. Once a tomato 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) k* K8 A2 Z2 `: W$ ?

is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.76( _: _6 j' x/ h' [/ a

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

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

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