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 5.39.217.77:88983 O+ [1 M, ]7 H q! v& {9 J8 m- c
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.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。+ I% V: u* T" L8 j. W! E2 S
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How to identify Early Blight. m7 M) j8 _6 o2 d
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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 ]6 r# B4 m1 K! w! qtvb now,tvbnow,bttvb) r1 z; f' k! h: g: Z. U
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。! X& ~$ O C! z( G" x4 {# R- F
2 s! f, t- k( tbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 6 x: ~& w% }4 x: r7 t9 I0 D6 q5.39.217.77:8898TVBNOW 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 d9 \& Y- p; ^' x6 Z/ ~ leaves may fall off. Extensive loss tvb now,tvbnow,bttvb: `/ o) H' ~" k5 u; \# T
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 1 n: Q/ f1 a7 n4 v4 \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。tvb now,tvbnow,bttvb5 Z8 B4 k1 O8 b! V1 o
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How to identify Septoria Leaf Spot ( A' ~/ I& ]: |4 h( E* _$ Q) Htvb now,tvbnow,bttvb 2 k. }, V! `* L3 V6 @# \ {5.39.217.77:8898Symptoms of Septoria leaf spot also start + `: b: e* n9 w+ J# d ! c' f! S% r/ s5.39.217.77:8898on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 5 x" P! G: `* C# k8 V: A3 STVBNOW 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 }1 X: I- v" ~# T& \
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. . f6 G, T# R. {2 A: `1 X9 t3 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。2 }3 H2 L1 K6 J2 }" z
Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb J/ Z0 w+ X. Z
" \( v" }1 R, @& M& z5.39.217.77:8898Weed your garden. Some weeds, tvb now,tvbnow,bttvb. B" O( u- S! f. C
! A1 a+ @* Y x4 o1 |* I" }公仔箱論壇like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.5.39.217.77:8898% o1 d8 e- r f5 M* G$ E3 d
" I p6 ?4 Y; \; i* B* M5.39.217.77:8898Rotate crop locations. Don’t 5 g# y3 t( h9 A& U
' Y; L9 a" S( A) q2 u" {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 5.39.217.77:88983 ]: d; \/ l$ O$ V% x" ]
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where tomatoes were grown. / c2 S$ A# @: d: R1 ] ) i) e1 R) P+ s* {+ TGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.# x2 G; x( ?% z. A
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 公仔箱論壇6 H( b S8 W* D8 }. o+ R+ X+ o: i
8 I, W9 G4 O# x. Tfungus from the soil to your 公仔箱論壇2 v. |; S; D' h0 l' l
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plants. - K8 [& K* I( p公仔箱論壇 : ?7 w1 N( K& w, Z4 o ~" s公仔箱論壇Stake or cage plants to keep them 5.39.217.77:8898- a0 [- d" q6 d( E0 H) z
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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 / G0 D+ m* e7 h6 [
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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 1 M; @+ `. Y3 p5 Q* y- J6 b5.39.217.77:88985 ]* I4 k/ n* }. D, d
space above the soil without any leaves. Do not use 5.39.217.77:8898- F: Y8 u; _' c. t4 B
tvb now,tvbnow,bttvb0 V4 E( v; J9 O* Y8 Z( H) X Z, C$ B
overhead watering. 8 z- O4 q: r' y% o5.39.217.77:8898Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. . G1 }* Y3 w- ~1 b0 GConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 0 ] e1 K, z" X4 i% j; c
/ D+ `, ~7 [# y8 mfungus 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- L! \/ m2 {8 Q7 C
1 u# B" Z) o" s) o5 Otvb now,tvbnow,bttvbLate Blight on Tomato Plants5.39.217.77:8898: }7 w4 m9 U4 j! [0 a: b
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb9 c! m+ D" j3 x( O6 n, X, m
/ a" |8 \+ X3 h0 l; U公仔箱論壇plants in a garden. Once a tomato plant 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 I3 o( b2 u* ], b* D; {8 ?
: l/ f( e! I8 iis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.77:8898+ a1 l0 _) Q0 B
) J. K/ ]* p Q: e6 P0 H" l6 a; m+ [1 PTVBNOW 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。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 blight5.39.217.77:8898, i4 |% f. g. o4 h# R8 I: K
2 h3 }& W5 k\" G; r\" ^5 ]2 x! 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。 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and * w ~' D: M& ~5 S- ^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 g: [% U9 l1 n! F2 h5 i7 [公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections.
