[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.9 |4 q8 ~7 j$ g3 G0 |

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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。7 s4 Z7 p8 o5 @, ]1 H

Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 公仔箱論壇$ w1 G; m: i/ ~

newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 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。0 z& }2 q8 T" D0 g2 W  `. W" s9 [
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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 . }9 |) o1 p, B4 p5 o# Z

of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.

How to identify Septoria Leaf Spot公仔箱論壇, Y, B9 {' n9 u
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Symptoms of Septoria leaf spot also start

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.

Small dark spots, the fruiting bodies of the fungus5.39.217.76' K/ m: F7 o0 w\" p. _
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry

and dead. Stems can also become infected but
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infection of fruit is rare.
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How to Prevent and Control Early Blight and

Septoria Leaf Spot
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Follow the 12 easy steps below to enjoy a

long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.

Weed 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.
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Rotate crop locations. Don’t 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。( E! [6 d( y6 Y& c# j, Z2 N+ y' g3 ^

plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in 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。: ~/ X- z4 I8 C8 k( E1 p
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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.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。# M) L1 f, \6 a, @
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of $ ?' M# Z, _! ]; a
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fungus from the soil to your
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plants.tvb now,tvbnow,bttvb. a. E/ C0 g+ }) v2 P$ I6 M" z1 ~
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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
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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 - w- Z: Q, ]% c2 b" a* z, C
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space above the soil without any leaves. Do not use

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 公仔箱論壇  O3 o, V. t' Q: g6 m: `; W
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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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wet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇' @$ `* u8 @* Q
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plants are more susceptible to disease.
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Remove and destroy or throw away diseased leaves, both off 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。* `7 R6 `6 R5 R7 W\" i, O( J( o
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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 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。6 v' ?\" ~( ^' S/ f
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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 : t+ D+ g, a* F/ L3 k

to remove diseased leaves should be disinfected before being used on a different plant.5.39.217.761 T: S, n5 [5 r* U7 F, n) e
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Spray plants to prevent and control the
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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。* j- ?% J% K  F2 J* J, b, r4 z

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。7 G  ?6 g$ w9 i5 {+ q

Late Blight on Tomato Plants

Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb  h- W. c2 R$ C
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plants in a garden. Once a tomato plant 5.39.217.76$ M* ~! H1 |4 R$ a6 l

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。; l- o3 q3 p, E1 A* K

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 blighttvb now,tvbnow,bttvb  t9 m) a+ h\" _. }. ~

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.

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