Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but www1.tvboxnow.com& B. M u8 S7 N1 R$ a
2 F. M; `( s8 e2 |( G公仔箱論壇can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.公仔箱論壇 F3 W* g$ ~0 K H" [
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+ z5 [2 a# }- Z' S% j& 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。How to identify Early Blight
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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to , U$ @6 B3 F# z# m
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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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' h- P! i" ?/ l: f! |公仔箱論壇in color and form concentric rings, or a
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, tvb now,tvbnow,bttvb* {- T% Q: @2 [% \1 l* k) ~
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leaves may fall off. Extensive loss 9 j1 m+ K# [: O! e3 ?! a( p
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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; |. |( {9 W# n3 Y* N
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How to identify Septoria Leaf Spot公仔箱論壇7 M2 I/ V3 |% p% L
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Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb2 J) Y( s7 P- V2 m) `3 b4 c$ C
: v, p$ t8 m0 J8 v4 b% bTVBNOW 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。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 fungusTVBNOW 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 U1 V- x7 ~) K
4 A3 J7 v ?( _$ M6 ]: {, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry www1.tvboxnow.com( J) r$ \( _" L- j+ O3 x' F
/ n3 y" R6 p! D* u5 z! ]+ D! A! O% RTVBNOW 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。and dead. Stems can also become infected but www1.tvboxnow.com( `4 W: |8 [5 \9 {+ @( X
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infection of fruit is rare.
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How to Prevent and Control Early Blight and 9 s. [5 c- N4 S% d) b0 `' X
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Septoria Leaf Spottvb now,tvbnow,bttvb. Z; v" r2 ]! E3 |6 h3 m& |
. o& Y! L& i) h& B4 j/ }. ntvb now,tvbnow,bttvbFollow the 12 easy steps below to enjoy a tvb now,tvbnow,bttvb\" E/ W6 u& H7 S* o' c( T
tvb now,tvbnow,bttvb: n3 K* c5 z, } W4 R/ h\" ]4 g
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.: F9 m5 v( ^8 O5 {8 w* a, \% j
0 v1 e' u4 M1 s% b O' q! U; jwww1.tvboxnow.comWeed 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.
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/ V# E5 O+ L5 J4 C* M, q8 i* {www1.tvboxnow.comRotate crop locations. Don’t www1.tvboxnow.com6 ], R7 U, J; y W& G1 m2 S! g7 k
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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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7 r" B1 Y4 i# P" ]* f, v6 B0 zwhere 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.tvb now,tvbnow,bttvb4 H" R/ ^' ] Q2 K6 V6 d
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 公仔箱論壇; C' r$ A4 N! \& b
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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 - U; N% a# s Q+ W, c
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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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8 d1 B p* q7 P) `, lwww1.tvboxnow.comspace above the soil without any leaves. Do not use
* K( l! a. f) Atvb now,tvbnow,bttvbtvb now,tvbnow,bttvb+ T) f7 p2 T _! V: l: ~- Q+ n
overhead watering.
1 ?* b6 |' e# C. h' X, P公仔箱論壇Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
& Y9 e. _9 G1 ]9 d7 o# q& z3 Etvb 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 公仔箱論壇5 H3 M9 ~; }" n
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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
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8 U1 E6 T, N* Y0 m. u Ywet. Keep your plants happy and healthy. Weak and stressed N$ ?/ u+ i2 l; Z
7 d2 i% A& w8 Y9 Uwww1.tvboxnow.complants are more susceptible to disease.
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/ _$ @7 w1 i2 h4 U, A' E; h0 Twww1.tvboxnow.comRemove and destroy or throw away diseased leaves, both off the # Q7 N' ^# }9 V4 V2 V/ j7 R
8 W4 |5 F! \! _plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early www1.tvboxnow.com6 k/ l5 V# \8 }
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enough. If a plant is heavily infectedwww1.tvboxnow.com; D: Z% h\" p/ a* F
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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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to remove diseased leaves should be disinfected before being used on a different plant.
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$ D" Q) j5 }! \( E8 h# j公仔箱論壇Spray plants to prevent and control the
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\" L8 h! B5 d/ H/ ^( x$ tspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try tvb now,tvbnow,bttvb, }1 f( u s2 Z' }, T/ {
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+ D- k% U" Y, ?! W4 X- bLate 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 - P/ T8 E* ?& H+ D2 ]
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plants 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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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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# X' T; C) j _Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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