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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$ j O: a6 ]% m+ U" F. ycan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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1 s7 t/ i" S1 I0 x% Ptvb now,tvbnow,bttvbHow to identify Early Blightwww1.tvboxnow.com1 J, x2 T- h8 s5 A
; e; W5 f. ^0 n$ b2 S2 ]公仔箱論壇Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to
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) c1 r- i y1 Q* b' M, rnewer 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9 R' X) A6 b' Y8 A' U8 O, N' Z3 z& o
1 u! R$ H* k\" V) z/ 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。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 公仔箱論壇, N% f) h, S6 S( _
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.tvb now,tvbnow,bttvb' I$ K+ K, n! @) F- _ }, {+ L
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" b" r" R$ l) s# @tvb now,tvbnow,bttvbHow 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。& ~+ {- X7 D7 T
, q0 F1 Z/ i# k' S% STVBNOW 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 Septoria leaf spot also start www1.tvboxnow.com9 j0 B% \5 Y& B8 Z6 e
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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. ; q5 b# K' N& l' Z( t
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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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! y3 w( L: ]& Y9 w* d- Dand dead. Stems can also become infected but
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infection of fruit is rare.
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7 f. `# g" `. w+ ]) B% wHow to Prevent and Control Early Blight and
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& ?! X+ u6 _& k! D- gtvb now,tvbnow,bttvbSeptoria Leaf Spot
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Follow the 12 easy steps below to enjoy a
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇# p* X; v# G* x
% H. X7 }- d5 g- t. B( j5 SWeed your garden. Some weeds, tvb now,tvbnow,bttvb( Q+ m; Z7 b' T5 c _3 l
1 M. R; k; J7 J9 ]- qlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.1 b# {0 `- n7 f/ k7 z' f* I
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Rotate crop locations. Don’t 公仔箱論壇& X' D# C7 e+ I2 o5 T9 J* {& j
' U# r# ~, ^% v( A* Z% J! |( p! iplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas / o3 K. f1 l( v3 T, ?
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where tomatoes were grown.
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4 v2 A: T, r8 L& F+ N/ _' @tvb now,tvbnow,bttvbGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
4 R' S8 Q, p+ Q0 n& N( o* w# SCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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( ?/ ]# Z+ r; o/ I8 l: C) J5 q+ {fungus from the soil to your www1.tvboxnow.com, K- k7 c5 |9 L9 G
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plants.; [/ i4 P! H( s* E
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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 tvb now,tvbnow,bttvb) f% y& o( ?1 `3 E* ?7 I
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space above the soil without any leaves. Do not use www1.tvboxnow.com! O- o3 z! h( u* o0 A- H
, `8 I1 ^. M8 v; k# d0 @% foverhead watering.
7 A e1 Y# @0 ~# |1 w( v# Hwww1.tvboxnow.comAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 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$ d, y5 m9 [
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 3 p, H' t) u" O7 a, G% b" O
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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。5 h8 {. y' D) L
( S' d ~( W) M% a/ u4 G7 `plants 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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: N2 ?: d8 |* e1 ?; ^$ Oenough. If a plant is heavily infected# C6 S: C4 Y3 a/ Z4 l$ v t3 Q* F& ? `
2 x2 {3 W. n& U\" F1 j. W+ c2 E3 f公仔箱論壇, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used www1.tvboxnow.com1 u0 Z0 ^: E ~1 t4 }# K, k
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。& v, j: D6 y% f9 L
to remove diseased leaves should be disinfected before being used on a different plant.
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8 d" E' m3 A4 [3 W$ L4 rSpray plants to prevent and control the - i6 q8 E/ ?- c$ ^+ V
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) l) M7 U\" i- g! ^; N- {3 ]* @
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try $ u9 [' O- \* h' z
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GreenCure.6 d3 X+ \+ u, R, K: X4 `
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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。3 M0 U; ?+ r) Z) C
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 : a% s( H8 H1 N
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plants in a garden. Once a tomato plant www1.tvboxnow.com0 Y1 B# u3 {9 N' Z. E5 X
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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, A7 {" d6 m0 o/ U4 M
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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 blighttvb now,tvbnow,bttvb: c. j% \# E5 F0 V9 a: f
' I p, o! Q. e/ Z Z* E 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. |
發表於 2019-4-13 05:03 PM
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