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.6 e8 R" K7 A# K2 o% \5 h, K. o
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How to identify Early Blight
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2 I$ @* G& Q$ S! S: T 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。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。- k# q$ h& I* L2 N$ X& P6 y4 G
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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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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 tvb now,tvbnow,bttvb; o- G+ i! q- b& r2 b
0 l& c" @ ~% N! M/ s! @9 ^www3.tvboxnow.comof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.' S* l% _7 \/ ~, }9 O3 V$ m* x
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How to identify 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。* R* a/ a7 y: t
$ ? V5 b- j( D; H5 ]' E# `公仔箱論壇Symptoms of Septoria leaf spot also start
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. W: `# d. {2 T) N1 V7 F$ son 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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3 @. y2 _# M3 y" {9 q! ~0 fshape 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
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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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4 a, E* b2 x2 G5 J! [& u% XTVBNOW 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。infection of fruit is rare.tvb now,tvbnow,bttvb0 ^# j2 u3 q; W+ R! W7 d- p% N
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( n9 H! h; O; `0 M2 hHow to Prevent and Control Early Blight and $ z, g1 g+ T7 J3 R
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Septoria Leaf Spot
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Follow the 12 easy steps below to enjoy a tvb now,tvbnow,bttvb. u3 ]/ K6 C' K7 Z$ s, c
! {4 V3 W- m% a* `( iwww3.tvboxnow.comlong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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Weed your garden. Some weeds, 公仔箱論壇, H8 Y" B1 e, M j
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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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: Y9 d, _) E3 \+ h W" dRotate crop locations. Don’t
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- x3 L* D6 Q# G8 |9 k8 Hwww3.tvboxnow.complant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas ( z, E4 i2 n; \* |( }& F" B
( W7 [4 o, r, z" V2 Z公仔箱論壇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.www3.tvboxnow.com' V. ]/ z9 O% m! F" m
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb* P2 V; _6 _- t) f
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fungus from the soil to your R5 l' J9 x, B1 o. n# \$ i8 g
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plants.
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1 e& p; C6 u# {www3.tvboxnow.comStake 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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- V f0 a; U0 F6 [公仔箱論壇cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of www3.tvboxnow.com3 V) U' L0 V0 E k2 _+ ]
( I+ b! R/ J1 ?* j" W# A% [space above the soil without any leaves. Do not use
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( \\" U D1 O2 @\" b\" L: ?3 h7 c; woverhead watering. www3.tvboxnow.com4 q" O5 o+ j8 Y
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 公仔箱論壇0 p, r* p- D+ ]9 f% H; n$ 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
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, E1 R0 v" `: Q. @5 ]' c5 E6 ^6 w# pTVBNOW 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。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
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plants are more susceptible to disease.公仔箱論壇, [/ [% o S6 T4 t5 ~
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Remove and destroy or throw away diseased leaves, both off the tvb now,tvbnow,bttvb, X. P) s, ]4 Y- H0 _6 _5 Y0 m5 f
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early + ? J E! x& E- B
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enough. If a plant is heavily infected公仔箱論壇2 k2 D+ y( s+ U) x
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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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" S+ ?1 B+ D N9 nTVBNOW 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。to remove diseased leaves should be disinfected before being used on a different plant.
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+ t" u. z, S" T8 T6 f4 U1 YSpray 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 tvb now,tvbnow,bttvb! N0 a4 n6 W# D" U! E# t
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1 ~8 e8 Y' O' Y$ XLate 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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# |% { Q6 J5 v* Z2 g3 Ktvb now,tvbnow,bttvbplants in a garden. Once a tomato plant 9 w2 z) Q5 _; M, j6 t. ^
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 公仔箱論壇: [/ h% z* }+ r& j
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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 blight9 v! d2 z0 b& H! ?5 H
. u. S9 V8 y) l8 w8 @( @8 }8 ~0 a% i0 ?公仔箱論壇 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb; ^ [# H: S) a, X5 S# {+ I/ p! [/ _
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Septoria leaf spot infections will also help prevent late blight infections. |