[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.# u2 g3 z$ ~2 C
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How to identify Early Blight5.39.217.77+ u2 E/ u1 j: @: \

Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to

newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown : H% C6 R0 O; M. g: n
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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 $ Y! x8 J3 ]$ V' V( G) h1 g1 x/ |

of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.5.39.217.775 [" q1 L' n+ g$ P! Q2 O4 h+ h
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How to identify Septoria Leaf Spot公仔箱論壇2 O$ t& S4 t& I, \2 k. P2 l
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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 fungus

, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 5.39.217.77# q% a( K- k, @% R, g6 Y3 B) [( l2 }
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and dead. Stems can also become infected but
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infection of fruit is rare.5.39.217.77$ c0 O& E- O- ^* a* K$ ^/ O
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How to Prevent and Control Early Blight 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。( F8 `( `5 u' I& J  G) w

Septoria Leaf Spottvb now,tvbnow,bttvb: q- x* Z/ E8 ^

Follow the 12 easy steps below to enjoy a 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。( q. J4 w' `4 m

long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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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.tvb now,tvbnow,bttvb% J& f- m% v. y" i
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Rotate crop locations. Don’t tvb now,tvbnow,bttvb/ E- J3 X8 P# R, Y+ \! R8 |
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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.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. H6 @8 O' s# G2 h6 n: e" \
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.5.39.217.77. M# @7 q3 q) H2 ^/ l
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
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plants.
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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 6 Q# w/ P' r' G1 R, v3 L& j
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space above the soil without any leaves. Do not use
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overhead watering. 5.39.217.77# O. N7 A8 ?! m4 U+ J
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 6 P) V4 w( A7 d* D! N
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 5.39.217.77* ~. s. K* ^; D- D1 N. @* t5 `

wet. Keep your plants happy and healthy. Weak and stressed tvb now,tvbnow,bttvb5 R\" n1 o  e- p1 @5 g+ K2 w

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

enough. If a plant is heavily infected
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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 5.39.217.77! m: t( H9 t/ `" i0 }

to remove diseased leaves should be disinfected before being used on a different plant.

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 - A0 X" B& q" \  s, G
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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。0 }0 N5 _# J+ N7 r7 }/ o
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Late Blight on Tomato Plants
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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 tvb now,tvbnow,bttvb' K) C' b5 G: J

is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, ) L) T7 O* J' h- P5 d

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公仔箱論壇, t3 B% k. X3 N4 k) i! O4 K
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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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