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 + ?- l) x. {* }/ q% l5.39.217.77:8898 " p0 u! R9 p) e! fcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas. , R8 M+ r% ^, l9 UTVBNOW 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, A) T ~% c+ a
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How to identify Early Blight 7 J6 \6 ]7 \7 W! 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。, M+ D2 b3 A! c
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& G+ B+ _* p; b. k
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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 1 K9 e* ? @; v$ a' V& y ' O5 t' {) q- @7 s" TTVBNOW 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。in color and form concentric rings, or a tvb now,tvbnow,bttvb, l. p; u$ W5 h5 b. o
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 5.39.217.77:8898 K5 h6 J+ v- ^# _- m$ |2 r, y
- V9 t# g- v( S) b& r' I公仔箱論壇leaves may fall off. Extensive loss 公仔箱論壇) V& } L" |% e1 p: R% h- R: W
; [9 [$ a# \9 E6 f- @& t0 v) k7 h4 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。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。3 N) T# X* ?' `. v7 F5 h$ k( J
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How to identify Septoria Leaf Spot * b* m9 H9 q$ b& z8 ? Q5.39.217.77:8898tvb now,tvbnow,bttvb) A O+ h! Y1 G+ i7 z/ f
Symptoms 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。) R9 w/ H! G7 O. y: T$ l4 F
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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 公仔箱論壇0 J1 t; \0 {3 `
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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. 9 K- ]/ e$ E' q: Q4 f- C& U9 f# }
( p! r( L& ], w: f: n+ w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 8 j; K" x7 v) x' r0 ^+ [' w5.39.217.77:88988 V2 _3 {, v" D# u3 e. V1 ?7 z
where tomatoes were grown.5.39.217.77:8898; l. b4 h+ q- p
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 7 l' v8 i* N4 k5.39.217.77:8898Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 6 P4 @3 \) M5 Y+ R# d$ L- ^0 ~, y2 _2 o$ c# ?
fungus from the soil to your : i( |1 L* @7 e% g) 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。, y0 L. {7 E; }
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。& o9 p: `7 \3 ]1 y
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Stake or cage plants to keep them ! J; @& J% J* w) q4 E $ V. ?( n- x r) ioff 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。6 L8 [* }2 H1 G) Z# D
- P4 n# d8 l9 L. w# F" Rcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb6 v( S5 Y% X/ C9 p; q& A4 q
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space above the soil without any leaves. Do not use 6 u X# v/ _' L( n f5.39.217.77:8898 H, L2 p# C9 \0 ~* I0 ?
overhead watering. - m: P3 o# k b5 F& d& X, @3 ~Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ! h; |5 }3 t8 w; z u公仔箱論壇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 4 c! ?3 L J% x. Ntvb now,tvbnow,bttvbtvb now,tvbnow,bttvb. L1 P8 m0 {3 b( s: C$ Q
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are tvb now,tvbnow,bttvb$ U5 m5 x7 e2 y+ M! k: x' I0 S) H
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wet. Keep your plants happy and healthy. Weak and stressed 2 G/ Q) a' r( l9 ` 2 U. D% S' p M7 q. ]plants are more susceptible to disease.5.39.217.77:8898- x+ W9 E3 j; ^1 T1 g) _
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Remove and destroy or throw away diseased leaves, both off the / E* v$ {! j7 }4 n0 v; C3 Q( _tvb now,tvbnow,bttvb5.39.217.77:8898 w/ |# M9 r9 F5 [+ J: V
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early - ?5 n% F) \1 P4 k1 {7 t
+ Z' u% X4 \* L; j+ }公仔箱論壇, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used " ?. f; M6 D% U) A5.39.217.77:8898: d) s! L- v6 Y6 a# D
to remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇; Z ^5 F- U5 t
, o( G8 Z* Q2 z& ESpray plants to prevent and control the 0 V; ? P2 C% e% ]/ x5.39.217.77:8898公仔箱論壇' u7 h( N2 v; r5 H: ^
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try $ Z) y( p9 P% l* i: S' _tvb now,tvbnow,bttvb + r4 u* I: B! V" A6 }2 d8 v5.39.217.77:8898GreenCure. % o* ]6 i) p$ R4 wTVBNOW 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 [" M1 z0 h6 ^% x8 k1 _& \
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Late Blight on Tomato Plants; m( w% T% e5 @+ i
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato ; u# m" `! f, j0 M& m7 P8 V7 Y5.39.217.77:8898 / v- o# f: T5 z: N7 I7 O5 l) R2 Wtvb now,tvbnow,bttvbplants in a garden. Once a tomato plant , y' l: x, |) ]: m/ a5.39.217.77:8898公仔箱論壇/ N0 K4 z7 @3 k
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, ; e. O6 e( e2 O1 U0 s
( b: M# ? ~7 L* F+ S" N: otvb now,tvbnow,bttvbwater-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 blight2 B3 [% ]( p0 f
5.39.217.77:88982 U$ N\" Q: b' C, |/ ]) K. b. J$ V can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 5 B. `1 [# D4 ]& ^tvb now,tvbnow,bttvb - i$ y3 p, q; }/ l7 }: qSeptoria leaf spot infections will also help prevent late blight infections.
