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$ x9 u3 \! G' `8 H Y
0 @4 e3 h9 r& Y# M. C5.39.217.76can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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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
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) }, q% m0 W7 K a: l0 ~; ?6 Y5.39.217.76newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown tvb now,tvbnow,bttvb3 s+ v+ n% i# X$ l( |
+ A$ \/ B! h% }2 c5.39.217.76in color and form concentric rings, or a % G, R+ T, a$ v, q, H! R5 w2 k
4 ~1 N# V* Z# O0 f8 W$ I9 ktvb now,tvbnow,bttvbbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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- K6 X& z7 ~+ S- S0 B4 ~* W公仔箱論壇leaves may fall off. Extensive loss 公仔箱論壇% R- c# L+ F! q: i y! i: `3 F
; W: `% v9 @5 o6 \of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.5.39.217.76/ L$ ?- x- G4 `8 c
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How to identify Septoria Leaf Spot3 ^' p' Y8 Z, A9 z x3 y
. y: R1 T" C+ T) O5.39.217.76Symptoms of Septoria leaf spot also start 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 v! z+ u! \- [ d7 X
3 E( U! l1 }5 Q0 n/ \tvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change
+ @ E9 B" U ]5 ATVBNOW 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& N% w7 y7 }' z4 d; l2 w公仔箱論壇shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 0 {, s- J4 m: J; `" O! E
4 e, W3 J8 C iTVBNOW 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。Small dark spots, the fruiting bodies of the fungus# _: T$ r8 Z8 ~! M
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 公仔箱論壇7 {$ W! n7 K% `! ?0 D" y9 b+ E) r
4 y/ ]9 ~$ J7 e2 R7 q q/ h+ ^) V. T% \公仔箱論壇and dead. Stems can also become infected but 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。 y U6 F! i. E0 w6 y
|: _6 _' J* }! z/ Ntvb now,tvbnow,bttvbinfection of fruit is rare.
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How to Prevent and Control Early Blight and
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; k3 q* n% ]+ \$ A: v. QTVBNOW 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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Follow the 12 easy steps below to enjoy a 3 R( r! k- F$ z/ u5 w2 M
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.* i. d2 b% ]" x0 c i- C
; X3 T" x! o) }) |% z5.39.217.76Weed your garden. Some weeds,
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/ z% p% O% Y% K2 b/ `' w5 A' k) }like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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# ~* H" j0 ~8 k+ z: o I1 g3 v# O5.39.217.76Rotate crop locations. Don’t
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% l. Z* {% L& ]4 K. k2 [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
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+ g1 [: x" O. P) i9 T公仔箱論壇where 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。: ?) v) w/ `4 A- X: u! G% Y
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.公仔箱論壇1 _! Y, a, }$ W5 g' W
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of " c7 B( o! |+ x8 C5 |
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fungus from the soil to your
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plants.
9 P# t- _$ M9 l# Itvb now,tvbnow,bttvb
6 ]( `" b/ L8 _/ s: F4 {tvb now,tvbnow,bttvbStake or cage plants to keep them tvb now,tvbnow,bttvb8 F3 P0 j6 A) |3 {' ?' [
1 h3 P/ m7 F. s. A# n公仔箱論壇off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and tvb now,tvbnow,bttvb: j( r" p1 Y5 U+ s" d; Q7 l
; @& o% y1 F# K3 N: jcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb8 Y/ |9 p! p T$ {7 K! W* ?
5 Z4 `8 O- i3 v: Nspace above the soil without any leaves. Do not use
8 J; I$ R\" @, N; i公仔箱論壇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。! O/ r; E; b( ]7 t7 I/ k3 k4 K; d
overhead watering.
$ }+ N2 ?( f% WAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 2 f2 M+ | r- O: y7 W) ?
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 5.39.217.765 k0 ?+ D, V7 Q7 E8 |
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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 公仔箱論壇7 s% r/ K3 J; R# X7 G- ~
, _8 ]; s' v% g W- y$ Rtvb now,tvbnow,bttvbwet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.8 |! D0 a4 x% G/ s8 F8 K+ {) b5 d; _& v
+ u# B/ g" K/ {# \: S x7 e5.39.217.76Remove 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 公仔箱論壇) {( Y" b1 Z/ |; h/ W7 q O
4 c/ Z; o; M0 S+ F, j6 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 5.39.217.76$ V2 f) z0 q( X' k0 l _9 h) V6 N
; K! t; I2 K: r6 t9 C* |' o3 j公仔箱論壇to remove diseased leaves should be disinfected before being used on a different plant.7 ~# Y1 ]' _6 p/ U* o2 T
+ f! b6 \3 {! r( R- r5.39.217.76Spray plants to prevent and control the ' P! a! g0 g& @% u
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
0 i8 ?# B$ x" E% C, R. l公仔箱論壇tvb now,tvbnow,bttvb+ ?: x: C, p* t7 \5 b) N
GreenCure.
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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
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% u5 b2 L/ p/ v8 R5 u! A5.39.217.76plants in a garden. Once a tomato plant 5.39.217.763 m u; l( I$ F8 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, 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 w5 \6 R) I: Y) Z/ q. A# S3 m) o; l* v
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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 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 S0 W. l7 Y/ P5 O% o
s1 }2 B. f$ ctvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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