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標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁]

作者: 6t6t    時間: 2019-4-13 05:03 PM     標題: Early Blight and Septoria Leaf Spot on Tomato Plants

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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" D4 h4 F5 B6 {$ u: S+ {! ?  Mtvb now,tvbnow,bttvbcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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$ B0 c  G5 y4 lHow to identify Early Blight
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8 W0 T: B5 P1 p- z; f3 ?+ E5.39.217.77:8898Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to
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; j% J% F8 n- J' {1 n2 Btvb now,tvbnow,bttvbnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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9 t$ r7 K, \/ T' g0 g4 @) Ztvb now,tvbnow,bttvbin color and form concentric rings, or a - i  h6 h/ k7 @* G0 d5 W
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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 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。- `0 ?6 @+ i6 X4 N

* m* K9 }% E( z! G5.39.217.77:8898of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇' v) }, w: s  S- N

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How to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb  M- h$ c$ e! g6 i2 X$ }2 X7 ~
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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 5.39.217.77:8898/ C) {& M+ S' \3 q- j, e6 M6 w

" r5 P& I# [0 u( \) ptvb now,tvbnow,bttvbshape 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。) h  g7 j1 W2 H6 P
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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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and dead. Stems can also become infected but \" J, p5 Z' @& d7 f5 l6 m$ V

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is rare.tvb now,tvbnow,bttvb( I+ N; _5 K/ e9 X/ u# N

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1 s) }% ~/ p2 P! E1 D' M% ^4 ]* F公仔箱論壇How to Prevent and Control Early Blight and 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。4 K7 W# u4 h* {9 e, H0 |, H

' k2 V8 p: ]9 Q2 f# Z, a0 {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。Septoria Leaf Spot
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3 ^/ w! d( x% R; u$ L公仔箱論壇Follow the 12 easy steps below to enjoy a 5.39.217.77:8898* s/ n: x, C' r* S6 }# D

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of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.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。( n. s: n4 F# n# H% W8 C

6 \) ?& }6 o" e! _5 q. \3 @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.
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Rotate crop locations. Don’t
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: ~+ Q2 l1 ]8 s8 U# H/ g; t5.39.217.77:8898plant 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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5 I) ~: Z' g0 J9 ?, ^, Ztvb now,tvbnow,bttvbwhere tomatoes were grown.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。$ s0 y8 j9 X8 y4 o0 q5 F; L( R
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
' _  Q$ q' [# g7 D: H  oCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of ' m9 K6 E/ F3 `
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fungus from the soil to your
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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 5.39.217.77:8898$ }5 P" R" q3 _( J2 [& h

$ r& Q8 y2 m  ]0 ~# T# g0 }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。* M3 u! }2 u& s- [9 M

+ T% S, W8 L" E! F* C" G7 Ktvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use ( Q1 a+ b0 x# X6 i0 E' r
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overhead watering
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Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
$ o* Z& K" W% f; U: q+ _4 N- N3 Wtvb 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
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: o0 D4 i' E5 ~+ t- Z6 e5.39.217.77:8898fungus 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 tvb now,tvbnow,bttvb# O' i6 v. {2 M: P, o7 n# w

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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。# Z2 Q; G' c- k: j9 Z

- N' E, B1 o+ J7 F% q! HRemove and destroy or throw away diseased leaves, both off the 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。/ ]+ L8 G  L' @5 z
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plants
plant and any that have fallen onto the ground. This may help stop the spread if caught early
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' l) |  t/ \! C9 x+ nenough. 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 公仔箱論壇- N7 Q$ F  ^* C: P" [
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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
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spread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try
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: @- X  o1 V) _1 X5 [: [GreenCure.公仔箱論壇7 L" J" V$ R1 M7 J- b! Q

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+ m7 j& \! S# _$ Y! d: S" Z3 t% Y5.39.217.77:8898Late Blight on Tomato Plants
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9 D- S- W% w3 }( b" y2 ]tvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:8898( R% t$ F5 ?  a% ?4 t& T/ y
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plants in a garden. Once a tomato plant
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- e& L5 C% {% p2 his infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, - Y1 A9 q0 w5 i& {, Y; 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 blight/ q$ _, f; ]5 V2 s0 [* M8 y& Q0 W: A

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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb: m+ ^1 d& q5 e" t; o2 t* u
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Septoria leaf spot infections will also help prevent late blight infections.




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