Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but tvb now,tvbnow,bttvb$ F. }( B J3 x# ?8 m% z
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. C7 ~# y% u/ x3 i" ]
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4 {1 a8 e1 m0 k7 M$ ~5.39.217.76How to identify Early Blight5.39.217.765 b+ d$ L2 N4 R7 m; q2 K
* c/ v% N4 a$ |4 K; s4 y5.39.217.76Symptoms 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。) A' L2 H) R6 h' H; }6 R
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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 公仔箱論壇5 [6 Z8 m' E0 P# X: V- \0 ]/ O( \+ x( m
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, % |: j9 o- v3 I4 i8 K" S
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leaves may fall off. Extensive loss 3 [6 b# C7 Q& e" C! w/ a- O
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.9 I; G# @& V- k: f& m `( P8 p
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& u) n& v9 c$ P& Z5.39.217.76How to identify Septoria Leaf Spottvb now,tvbnow,bttvb8 g0 C9 Q( n8 f' ]* a' I
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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 tvb now,tvbnow,bttvb- C/ C9 e, v( i
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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. 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。2 a* G8 Q. G8 N! ?$ w: H6 H; D- \
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Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb. g* E( W+ X3 y. x5 j3 X
& y# }0 J! A7 v) r: K, Z4 C' ]5.39.217.76, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 5.39.217.76, e; j# {* `) s
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and dead. Stems can also become infected but tvb now,tvbnow,bttvb5 r- w8 _% |. a2 e; s; ~2 f
$ X\" Z- j: _- s3 s7 E+ M* U公仔箱論壇infection of fruit is rare.
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6 i/ a" T% B8 L3 _公仔箱論壇How to Prevent and Control Early Blight and
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0 f- V1 _\" ]# o; \, C公仔箱論壇Septoria Leaf Spot2 ]% b+ n( J9 }( b m
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Follow the 12 easy steps below to enjoy a ' V. M2 ?- A* R: S( i5 M3 X! \8 I1 A
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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l! H2 R# I$ w7 Q% hWeed your garden. Some weeds,
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/ p: l! k. W* u( _公仔箱論壇like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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( T4 D. Q$ K5 T% }! ftvb now,tvbnow,bttvbRotate crop locations. Don’t
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( U; Y: Q* z4 [. ~5 |公仔箱論壇plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb" u& `- {( A: _$ h
9 _. m3 [6 ~* E4 H: c3 Lwhere tomatoes were grown., H3 x. I% S& C9 w+ q( u$ F. w
( }2 { U j% r; W2 e7 P公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
1 v" t9 R1 ?' b: A0 ~- x9 lCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 1 K4 Y1 r4 H5 ?& J' m5 ]
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fungus from the soil to your
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plants.+ \- T1 O% f* r1 g: P/ H
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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
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/ h+ C" x1 [9 H& c1 U3 tTVBNOW 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。space above the soil without any leaves. Do not use
* P; h. V) H/ ]# h3 P& Ktvb now,tvbnow,bttvbTVBNOW 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。5 P( i1 j5 ^& {3 z2 M+ j
overhead watering.
" G0 c' a w, u, I" X: v$ x5.39.217.76Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
2 ]4 i* t( ^ q& htvb now,tvbnow,bttvbConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow z- z7 q! [ ^) T) C+ v' G
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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 tvb now,tvbnow,bttvb4 j9 s$ x$ P0 j- M0 F' ^7 a# d- k. e
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wet. Keep your plants happy and healthy. Weak and stressed 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。1 S$ }; E4 O0 s+ c1 D/ V. i
; O. ~8 ]& U( t+ c: V2 ttvb now,tvbnow,bttvbplants are more susceptible to disease.
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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
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enough. If a plant is heavily infected# I/ Z) h/ |' M. `7 ]! P$ E2 i
5 C/ C7 N, L3 [5 n0 b* ^, G5.39.217.76, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used ( P" t, ~' ?& Y1 p: u
$ P7 f6 R# Z" s) p3 p# y! ]; {to remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the tvb now,tvbnow,bttvb5 W0 f( F0 e. p, w# }/ z; |+ _' {# f
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 公仔箱論壇, P: m N2 D+ S1 O, S5 ?
1 _& `# ^: X/ r6 g5 hGreenCure.
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6 R+ M2 d' c# j8 i9 G3 I3 y公仔箱論壇
; G* u$ o% A( N- t7 f% 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。Late Blight on Tomato Plants
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. j' o2 l/ ^! ]$ xtvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
2 O3 Q: M: t2 Z& eTVBNOW 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。
4 g6 x8 o" L. m8 y5 otvb now,tvbnow,bttvbplants in a garden. Once a tomato plant
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is 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 blight
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. c6 T9 _' o6 ~7 p: j d0 R( ?# N0 y can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb# ?, [" j: }+ b- L8 ^. \
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Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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