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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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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
6 L( t3 Q4 K/ z: u: X' OTVBNOW 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。5.39.217.77:88985 X3 r1 i& C) O8 N/ o  B: T

6 ^* A9 `$ ~' G& J9 v2 `$ `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。How to identify Early Blight
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% ^! m' a3 o9 h! ]' K  JSymptoms 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" L1 c. s, B7 U/ U4 e* j5 R5 m. _

$ V3 T3 s, G* c/ W, H! I/ ETVBNOW 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。newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
+ ^: e- Y, Z( z4 ETVBNOW 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。
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$ a* F, @8 O( X8 l. @tvb now,tvbnow,bttvbbullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow,
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3 E, f+ y6 z3 V# V5.39.217.77:8898leaves may fall off. Extensive loss
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9 R: {8 Z* c- U1 v% B公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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. Y. y3 n8 D- I7 C公仔箱論壇How to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start
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' [3 E+ k5 j* N9 U5 J" ztvb now,tvbnow,bttvbon 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. 2 D3 @# ?- X1 s1 m( ~0 G
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Small dark spots, the fruiting bodies of the fungus
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry . c2 j. g$ Q7 \. a6 z3 V; v5 Q

+ f0 ^7 Q" j; @) k1 dand 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。0 {# x! I- K* f2 A' }# ?9 u- `/ z

0 l. C7 t1 ^% E7 m8 Dinfection of fruit
is rare.
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% [  C( [5 p1 q5 q3 f  @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。How to Prevent and Control Early Blight and
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Septoria Leaf Spot

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* F1 q$ U* j/ T& ?# k# Y. ]: E% l0 ^( ]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。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.5.39.217.77:8898' z8 E! ^4 T) E" q; C( @$ n

0 }4 H$ L+ p9 CWeed your garden. Some weeds,
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- x5 ^* Y# u0 p- m, Llike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb+ O0 B( }+ g; `4 _) [
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Rotate crop locations. Don’t
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; K  o1 p9 \# R, O1 H# L0 R  ?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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where tomatoes were grown.
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6 a0 }1 ], }8 u' @公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb3 }, p' M1 M5 r3 E* u
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
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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。( z! H7 t" a2 M; ~: w
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 ^2 Q: r/ L" G" q3 T0 r/ P
Stake or cage plants to keep them tvb now,tvbnow,bttvb0 v# x2 b2 G" O& C$ J- g  l3 @
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( V; ]& L" R" m1 A$ ~# H
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes 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。: A8 |1 t$ u6 K+ l1 X/ Y' N/ b
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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 公仔箱論壇" y1 F3 V; L  x3 K9 `9 }

4 {  Z' q. S# `/ V& yspace above the soil without any leaves. Do not use
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4 e5 ~  Z% A: M4 P6 P1 F+ |* ctvb now,tvbnow,bttvboverhead watering
.
: K3 t& N  V% l$ K) A8 N5 t3 Q  N公仔箱論壇Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 公仔箱論壇, m. f; _/ W' u, R. G: j
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 5.39.217.77:8898# N# E7 N; N1 Z+ P( k# K& ~2 Y

9 N$ T0 v" e  L, s# s( I$ s% |# I) @7 nTVBNOW 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。fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 5.39.217.77:8898* q0 O  a" c# g, x; _

& R5 `: s" r( wwet. Keep your plants happy and healthy. Weak and stressed tvb now,tvbnow,bttvb! T9 \/ t- ]( E  H( i- f  f) K& a* h
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plants
are more susceptible to disease.
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' H" R% o8 ?  s% p2 E5.39.217.77:8898Remove and destroy or throw away diseased leaves, both off the
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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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enough. If a plant is heavily infected公仔箱論壇! H: Y% L2 B$ Y; n# a' O8 [  ?+ x

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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 5.39.217.77:88980 ~" c. u/ A0 z+ P+ w" h! P
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to remove diseased leaves should be disinfected before being used on a different plant./ c6 \- y( G' {+ A* i. N

, }) T* ~( F- P4 C6 x' l公仔箱論壇Spray plants to prevent and control the 公仔箱論壇, h$ d, m) k1 t\" o* H0 @+ L% j
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spread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try 公仔箱論壇/ ?( |  {% ?5 J2 J8 [( |: A
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GreenCure.tvb now,tvbnow,bttvb- Z+ Q% B* V" y- v1 ]7 u- G" j
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6 J# M0 O% ?4 i8 i% n5.39.217.77:8898Late Blight on Tomato Plants5.39.217.77:88980 j4 U: Y& l# W0 {

5 r0 {$ j" _& ]. [# K( v* ^3 L# S+ \tvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 7 o* O. o$ I* Q: t5 P8 o; O7 u) g

" r& s0 `, W; N9 m% }* T公仔箱論壇plants in a garden. Once a tomato plant
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* ?+ n* p% k4 Ltvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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& C0 q8 n* _* u8 F3 |& |& [: o+ f公仔箱論壇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& H9 V% E( h, x$ B$ T. `

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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,bttvb3 H  o3 H# G/ Q( [9 b

1 v) D: j& z+ o! t( {  A. 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。Septoria leaf spot infections will also help prevent late blight infections.




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