Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but tvb now,tvbnow,bttvb8 q2 M6 V; k5 s- k' b6 _ U
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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3 z8 n5 {* Z4 X+ J
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* h5 e# j4 m! R) q6 Ctvboxnow.comHow to identify Early Blight
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- t, d/ o8 t( A* X. ISymptoms 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。8 a/ N. P1 _0 Z
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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
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in color and form concentric rings, or a tvb now,tvbnow,bttvb7 P- M0 t( r7 e/ z, t
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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
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$ ~' n) R! w4 J% C# F3 x# xSymptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb' e# w( r8 x- \1 |) G/ C; v {
* X, i# `* I0 y8 v) ^+ v& S1 ?, Utvb now,tvbnow,bttvbon 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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8 } {/ U3 x" b& R5 s0 w' F% D7 ]公仔箱論壇shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. tvboxnow.com( E0 z! T( k" X
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Small dark spots, the fruiting bodies of the fungustvboxnow.com; i0 N; l1 N. Q
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry
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7 j+ L7 ?0 Q+ G1 Eand dead. Stems can also become infected but
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infection of fruit is rare.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。* K& B- l1 P+ c0 w
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How to Prevent and Control Early Blight and tvboxnow.com9 n5 R# M5 }* v5 u! T0 ?: I4 `8 o+ x5 |
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Septoria Leaf Spot
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$ M, s# Z4 \ e& y$ z% @Follow the 12 easy steps below to enjoy a
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0 q f V# S% z7 [+ |公仔箱論壇long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.& ~9 x2 C6 J- G9 J* f/ R
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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.tvboxnow.com: j9 ~$ b: ?. h% P
- h9 U6 e1 q! vTVBNOW 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。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
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( S$ R! C3 q9 k8 Y公仔箱論壇where tomatoes were grown.公仔箱論壇+ I- s6 r* U2 G0 _* k& C% G8 ]
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.公仔箱論壇' H! \' o# h( H/ y2 ]
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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+ E: } L+ D y9 C: htvb now,tvbnow,bttvbplants." ?5 l: l+ l6 J) l r+ R2 M+ L# B
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Stake or cage plants to keep them tvboxnow.com% t( y/ [8 K+ E4 \" y
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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 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。- G2 i9 p, S3 d2 S* ?( _+ W
! e2 h1 F! y3 O& ~% q1 f- Itvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use
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2 |2 F8 k$ c3 qoverhead watering. 公仔箱論壇. Q3 ^! p$ L; M6 g& _+ C
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,bttvb7 l4 }, y; i, [. p' e& V& ?
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 tvboxnow.com& b H( F6 j+ ~8 q1 a: }& ^
( }6 }" F4 r! n H' h, e8 Ztvboxnow.comfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 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。) C; T& p/ y' e& {% g+ U
b1 o2 l j7 X, V6 qwet. Keep your plants happy and healthy. Weak and stressed
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3 T, E4 K) }9 Z# G5 _; J公仔箱論壇plants are more susceptible to disease.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. r: p& M' F, Z8 Z" b. a
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Remove and destroy or throw away diseased leaves, both off the
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9 _0 c) x: t' {公仔箱論壇plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 7 w5 v7 ^) w$ S( S. y. m
6 {0 N; |: n; Y0 utvb now,tvbnow,bttvbenough. 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
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( A t) x5 I4 a; C公仔箱論壇to remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇/ b7 |% c9 ^# G0 r# x
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Spray plants to prevent and control the
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7 N* T\" z8 p% S8 m* ?! u公仔箱論壇spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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GreenCure.
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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 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。- S! X4 Z5 _- X
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plants in a garden. Once a tomato plant
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b- ?) f9 N- C" P! eis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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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 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。. J/ B' N& v0 h6 o- y
( N: ]4 P2 H: |5 _, Z5 ?\" 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. |