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.tvb now,tvbnow,bttvb; _" A9 H7 g/ k+ D" w8 d8 Q
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How to identify Early Blight
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8 ]! h5 P0 X+ C" `3 nSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to
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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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$ }7 j! G3 R( S* L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, os.tvboxnow.com5 D0 W A5 |/ P/ b
: I- x) v9 }' x" _leaves may fall off. Extensive loss os.tvboxnow.com, c' h, |1 a+ k# e" Y; k
2 U2 T$ D1 T; z+ \* `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。of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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% M8 R [) ]! ^6 ?; j4 etvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot
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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
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. m: ~, y6 f3 p7 a/ h- jshape 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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+ U& p% p: W) U" q" \. `tvb now,tvbnow,bttvbSmall 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。. ^$ a. E& \) i\" B\" O3 {: D0 W' r: 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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5 V! P2 j* x6 [3 K' o+ Q, |tvb now,tvbnow,bttvband dead. Stems can also become infected but + a u0 g& M2 L. K6 s; x
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infection of fruit is rare.
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How to Prevent and Control Early Blight and
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Septoria Leaf Spot- r) R0 [% J" U' d' Z
- I4 {4 F# a: Q# N6 t1 y7 O+ dFollow the 12 easy steps below to enjoy a ) r\" |; t' R7 Y& ~6 |& a i
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.tvb now,tvbnow,bttvb1 e3 Y4 S% s4 P
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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.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。9 E: B8 H+ n' v- F7 j/ I
8 A8 j" n9 ?4 X" A! r: f0 o- b% otvb now,tvbnow,bttvbRotate crop locations. Don’t / t1 D( Y' i) @' i; y! T D
1 z- ~* J1 _ X: aplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas
+ ?# Z/ A2 Z) U. |: S2 ]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。
" T( G! z" [2 ^, s# |- h6 [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。where tomatoes were grown.os.tvboxnow.com$ O, R6 X" c# s% w Z# c P
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
7 V- s; Q+ u, I公仔箱論壇Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread 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。) Z$ j" Z# w+ D" ?( h
& s' ]# \, x7 m% ?fungus from the soil to your ! h4 m1 |2 ^+ y5 H# {, b: a- H
) a( j7 ]6 N7 o# f0 ~tvb now,tvbnow,bttvbplants.6 c/ h* ~* ?1 N8 n% T, E, V! _- k
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Stake or cage plants to keep them 公仔箱論壇2 f/ S: k2 k: u/ S
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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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0 r1 _( V* Q2 b+ E* x: `tvb now,tvbnow,bttvbcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of , |! L( n8 J) n6 U+ g- r
* h. K" S8 ^! x3 _, F; k Rspace above the soil without any leaves. Do not use tvb now,tvbnow,bttvb0 K; n- k) W% {
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overhead watering.
$ h: P X+ a3 X1 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。Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
# D' j' r0 `& L, `" U8 ctvb 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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# Q6 `. f2 n' i3 _" R" o' Q* I* J/ O& {公仔箱論壇fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 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。# i4 W1 w* Q% \% {- Y$ t
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wet. Keep your plants happy and healthy. Weak and stressed os.tvboxnow.com7 [$ i6 n% d: w( o# x/ M
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plants are more susceptible to disease.7 L' |0 j/ b5 w, z1 h6 v0 n
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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 tvb now,tvbnow,bttvb3 T' H2 Z: M" w, }
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enough. If a plant is heavily infected
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8 r9 k) v* |1 p2 \; f, 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.公仔箱論壇5 v$ U( c: c& j$ ^
) M: g- P5 t0 v; Q9 a9 A5 f4 N1 ]tvb now,tvbnow,bttvbSpray 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" u( A7 Z- m$ W
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GreenCure.
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Late Blight on Tomato Plants
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; K3 R6 n) ^$ f. q. {tvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
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+ f+ t* a u% cTVBNOW 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。plants in a garden. Once a tomato plant
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: t; | D% U; Jtvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb7 t0 v. u+ U Y0 u/ a, D5 z
# @0 G0 r% c& w: i1 L+ M8 |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。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 blightos.tvboxnow.com4 ^ e2 e6 I' F9 U# f4 y$ [: x
7 ~$ c: e7 y1 ?5 ~5 [; Y `$ MTVBNOW 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。 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 0 i) h6 ]7 F- x( o# v
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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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