Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 2 `2 _* t4 F! z* C% S6 J8 d0 E( i
' p9 T) a# M+ d Q! I W公仔箱論壇can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
# ]% S- B N' VTVBNOW 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。: G( y1 a6 R' s( ?$ L
8 U1 d: t! G. r# ~& w$ lTVBNOW 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 Blight6 Y D7 |9 \* r' N" m; m* p+ ]
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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 公仔箱論壇) M7 \( E9 ~5 Y( v1 a/ j
* j8 b7 W$ J4 w2 ?newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown www3.tvboxnow.com4 x2 f9 D3 L9 z: P
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in color and form concentric rings, or a tvb now,tvbnow,bttvb$ w, a8 t O2 ^2 ~5 D8 b2 D; M
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇* Q+ l- P1 X0 Q: U. q; m4 b
0 u& q8 [/ V }- o0 D' c8 k0 Mleaves may fall off. Extensive loss & M, P" @' T; _/ X6 z v( w9 Q1 [" j
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.8 u: C8 I; ~1 J8 B( ?
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! G' S6 A& b& R0 GHow to identify Septoria Leaf SpotTVBNOW 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& v A i, T: u9 j
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Symptoms of Septoria leaf spot also start / b1 x( o T1 A- D/ @" q t/ T
- H% s6 ^) \9 |( \+ @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. / E* ^6 y9 O. _- o4 _- ^/ M5 B0 ?
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Small dark spots, the fruiting bodies of the funguswww3.tvboxnow.com' ]$ s* b3 I% N+ ^. b\" B; h
4 D( I; W. o, N8 E- m! g9 r, 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
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7 [, }3 {; `+ n公仔箱論壇infection of fruit is rare.www3.tvboxnow.com6 g# k9 s. c' B
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How to Prevent and Control Early Blight and www3.tvboxnow.com5 U5 v% A& K& a; T; l! n
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Septoria Leaf Spotwww3.tvboxnow.com' Z* P3 J! K# C- j) J
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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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3 d9 `) o- y/ g% H# Q7 Flike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. P; x$ O6 x0 d2 D( W
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Rotate crop locations. Don’t
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) J6 A- _4 ^7 ^0 Ftvb now,tvbnow,bttvbplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb7 K0 y8 ?4 l7 S% k
* ?" g; `8 C" J7 ? A6 Gwhere tomatoes were grown.www3.tvboxnow.com3 B( }: e) I4 x) j/ S
; Z: H3 i: A3 x/ q1 @/ jTVBNOW 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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
' E& `1 \7 a8 U+ A7 M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
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fungus from the soil to your 公仔箱論壇/ W( E0 E1 I( I( @/ Z9 J+ z
5 ?/ S1 `7 W4 r `9 F5 ^- u5 u Y; pplants.# j l8 B# j! [' c" z
+ h% Q! E+ g( Y" w. z) W. s; b0 PStake 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 |; A, ^+ ~+ p( q1 k- O% P' M
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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 5 ]% |: K: T6 a$ B" }; `9 ]( Z* V- U
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space above the soil without any leaves. Do not use
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4 w) Q: y7 p. h: noverhead watering.
. W# ~$ E7 D# C$ [0 ZAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ' Q* e: _' o) F& q; E# H
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 % r1 o7 _' y$ O% ~# X: s
+ B F0 N' K1 S! afungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are
4 n' j% o6 w4 {9 \% E公仔箱論壇
0 u0 e2 W& v& n* |tvb now,tvbnow,bttvbwet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.
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Remove and destroy or throw away diseased leaves, both off the
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, a7 S% h; j* Qplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early , T o* a; L: i; v+ w+ q, G0 q
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enough. If a plant is heavily infectedTVBNOW 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。( J* ~, z+ b( Q# w d1 f! Y
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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 tvb now,tvbnow,bttvb( [9 c5 S" l% ?# \' H5 a) n
) { o3 |- k- w! E- Stvb now,tvbnow,bttvbto remove diseased leaves should be disinfected before being used on a different plant.
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) `3 i7 t- o; ?* U3 T" `Spray plants to prevent and control the www3.tvboxnow.com$ {: E- Q' i9 D: k4 [% w3 l
5 s+ p2 `$ ? Q& y2 `spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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GreenCure.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。3 v( b* e7 A! y/ y J& j
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Late Blight on Tomato Plants
. V0 C& G( |/ x+ X) M0 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。www3.tvboxnow.com/ [9 d. f3 \& v! _* w, A5 j
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb7 f2 x/ R) k5 [# a+ C9 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。, S% T, h* q' J; i
plants in a garden. Once a tomato plant 2 \$ \$ i% L1 ]
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 9 r( B8 {* H8 Q
) j" n {) J. U0 h% f4 Q. Q \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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' G/ K8 ^- v+ L4 r( ]8 n公仔箱論壇 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 公仔箱論壇$ ^# z9 V' O) W' T' h1 [
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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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