Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but tvb now,tvbnow,bttvb9 P* R' F$ c/ h
, [$ K2 c+ E9 T7 @" u公仔箱論壇can 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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newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 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。$ Q( e" h% D* m' s& Y$ _
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in color and form concentric rings, or a
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3 B4 ?2 k: B6 s2 V6 [) P+ Uos.tvboxnow.combullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇' r+ e* P& a, y3 I7 g
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leaves may fall off. Extensive loss 公仔箱論壇0 ?+ g/ m E9 e4 i! u# h% Z( L
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.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。* w& N* _ X: T% Y6 C! S4 m& W
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0 y' M2 b$ w& w公仔箱論壇How to identify Septoria Leaf Spot Z9 B* ?# K7 j
+ S& v: O, `; H) W& M, C4 l" B' 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。Symptoms of Septoria leaf spot also start os.tvboxnow.com1 U, Z! r& j! |' |
6 h. v6 y N$ r Wos.tvboxnow.comon 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. ; Q) h$ Z0 ?. @, B! l5 I
/ ~ v) Q% H/ `, v; F: g3 \公仔箱論壇Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb7 E, r `4 b# ^' n+ y0 V& |
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry os.tvboxnow.com4 O3 u' V9 [. X. P1 }/ x
" w, p+ F, Z! d9 G: \6 ]: Ftvb now,tvbnow,bttvband 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。9 s1 U; C# Z! w$ u
$ m1 S3 Q8 A3 Sinfection of fruit is rare.
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! U- U3 n) J. [6 j7 r9 uos.tvboxnow.comHow to Prevent and Control Early Blight and
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Septoria 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.
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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.
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* K! D9 [: l4 X' V- PRotate crop locations. Don’t
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# `2 B8 V$ ?7 U- b, z3 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。plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb8 ~- k2 m! b! `" R5 K, @8 m- Q2 T& b
! P' b0 b, E' q& ?5 }: A9 H( m$ hwhere tomatoes were grown.
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% A% K) E7 D; X0 otvb now,tvbnow,bttvbGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.0 M' }0 Q: D% k' a! S. ]. [3 O! |
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of os.tvboxnow.com5 v( d1 O0 l$ D& I% ^ b
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fungus from the soil to your
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& Y" ~: t( h! r- c7 l5 o& y2 Qplants.
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Stake or cage plants to keep them tvb now,tvbnow,bttvb$ h# i' ?( l! `3 y, b5 S
- A$ v& Z& t3 D" N" utvb now,tvbnow,bttvboff 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: t! ~/ n( _% _0 r# J5 Z. R' e
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。- s* S+ |. C7 @; N
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of os.tvboxnow.com9 [/ z6 w: {, s4 v
' M. f3 |. N" j4 I# f- [& Aos.tvboxnow.comspace above the soil without any leaves. Do not use
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overhead watering. tvb now,tvbnow,bttvb( U8 j0 ?3 F9 O. F. ~8 l
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
) h. G# I* S: I2 r! W( y! S5 xConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow ; k8 E c& I3 ~- T5 j# `' Y) l5 R
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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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' ~$ O- x6 S' l8 twet. Keep your plants happy and healthy. Weak and stressed
: |, _0 c5 F( F7 W5 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。
) O. r* k: B& W, s9 V, FTVBNOW 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 are more susceptible to disease.tvb now,tvbnow,bttvb7 g* K# H% K7 M8 w: L. c# S: B
+ S6 a% |( w) m0 G* t; w) NRemove 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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( ]- @' j2 U* W. e% L公仔箱論壇enough. 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
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to remove diseased leaves should be disinfected before being used on a different plant.os.tvboxnow.com. R3 Y! r! U( C1 a- q: \6 K
. [% u- o3 r' ^" A) X; `Spray plants to prevent and control 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。6 q% ]6 Q( q& z' y; r0 c
# r3 k8 G M& g- E+ j2 lspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 公仔箱論壇; R. D' X' y; D. c" D5 c3 B
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GreenCure.
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Late Blight on Tomato Plants公仔箱論壇1 R* A, {) j! F) [- B: n
" C4 P2 L! T% C& d( ?Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
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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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5 e; H0 [+ I& p Xos.tvboxnow.comwater-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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6 F, V9 z\" O; p4 P can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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+ I. o5 P/ R$ ASeptoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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