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 4 e% m8 v' w0 W' h$ g2 D公仔箱論壇8 j E$ K4 A% [0 [! I/ s
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. # X4 y4 H% N) xTVBNOW 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。$ U2 S5 v* f+ A# Z. }- I
4 _/ j# G9 N9 J8 e$ S* D2 oHow to identify Early Blight ' f# t3 j: C" x' y' f ' y4 i% Z" C" oSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to $ M4 X$ g# l" _- p. v+ _) K& M" U1 u7 s9 T: k4 a
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 8 _7 ]$ o( n( u9 o, c9 }8 T6 ^tvb now,tvbnow,bttvbtvb now,tvbnow,bttvb: T* I' k) T# H( z
in color and form concentric rings, or a 5.39.217.76+ V% ]- f0 C) W! _
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 8 N7 \# X2 X5 C公仔箱論壇公仔箱論壇0 z. v; _" w' D ^: b leaves may fall off. Extensive loss : `' \+ z8 W L, ^/ b y+ ` 5 m# K. F% P# Q公仔箱論壇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。0 u) j2 Y! `4 M- b$ X% n4 M+ V
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How to identify Septoria Leaf Spot 2 b! _3 q8 `8 u6 j( r& _: Q公仔箱論壇tvb now,tvbnow,bttvb5 l/ y8 u, G$ ^% K
Symptoms of Septoria leaf spot also start 3 C$ y8 B; M- ^7 b
2 i: N7 y: N+ m' A$ 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。on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change + s& Y* Z ?0 L: Z3 Q9 z5.39.217.76 3 x- F: h, I) [' ^% KTVBNOW 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。shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. tvb now,tvbnow,bttvb/ R" W. x& b0 l7 e O Z
9 A8 }* s+ @8 Z( ~/ Dtvb now,tvbnow,bttvblong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. * T/ n% B- f. @+ x: }公仔箱論壇 ; V: l3 S) O- n; F$ k: P* P公仔箱論壇Weed your garden. Some weeds, 5.39.217.76# I/ l8 `# a: L! ?9 l2 }' p/ K
" _# ?& p" n7 A* w# h. wlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato 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。6 o: K6 [4 A1 L5 L0 H# S6 i" }
u& D7 p- s ]5 O, a/ IRotate crop locations. Don’t * n' L: H5 X% N; l
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plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas / w9 _$ Q. ]' b, Y! l: r6 L2 B5.39.217.76 9 l6 H+ L8 X; b( x$ cwhere tomatoes were grown.公仔箱論壇" t8 y g. m0 e1 i. l
* K+ G0 a" V& ]4 b# e$ t' V! X. nGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb: V% `+ X9 C9 O
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of & z7 M. m- o- v3 T; M- n
' I9 b* p1 Q3 }tvb now,tvbnow,bttvbfungus from the soil to your 5.39.217.766 a o2 w2 @" ]# N
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plants.公仔箱論壇1 e) P- Y( G) ?: z8 I* |4 V8 p
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Stake or cage plants to keep them + X0 n* i1 m' c' { I- `tvb now,tvbnow,bttvb5.39.217.76, P& i, _% o k% Q3 [5 a+ I( K. W \
off 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+ e5 f) Z% q' d: c# ~
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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 + i6 w1 S8 f; z. s* ~# t( ~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。, t+ F8 c3 \$ ^# F
space above the soil without any leaves. Do not use ( \1 [1 h$ ~$ s9 P4 c公仔箱論壇 * v) n6 ^8 ?8 ltvb now,tvbnow,bttvboverhead watering. ) m x |% ?/ u7 H! p+ m) XAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. % O& g: P3 v+ a$ Y: 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。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 公仔箱論壇5 a# q& q- B) f5 @9 _. f. M
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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 ) O0 s5 n9 s# W7 M/ Y+ _' j公仔箱論壇5 `9 T6 a3 X; H1 n% u& z w% Y
wet. Keep your plants happy and healthy. Weak and stressed , l4 j- i. }9 L! g; O/ L
1 p7 Y/ c* l4 z! 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。, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 7 X6 m/ @% a) {& J5 c+ G' d) G# Q5.39.217.76 n# W* C) t1 ]; p. T* z5.39.217.76to remove diseased leaves should be disinfected before being used on a different plant.5.39.217.76) a: h- \- i/ b4 u- E v# h& p$ B
$ I8 O+ r$ K+ t: D/ 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。spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try + Z! p2 b; q3 Y( G. L7 i , a; \' N% r+ U# A7 k8 h( R5 W3 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。GreenCure. ! z* [% }4 U2 v9 ^7 z$ 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。5.39.217.760 \9 x0 `) W0 p0 u# k- V& j
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Late Blight on Tomato Plants B! `1 _/ [) D$ z1 s# i) q $ r' O( H9 T. t7 }' K$ h% ^1 \Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato , G" _) ~9 X* |7 U0 y公仔箱論壇 7 d( |3 w Y, [- |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。plants in a garden. Once a tomato plant ; `/ P0 P8 ]4 a0 d8 l5.39.217.76TVBNOW 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 t" C1 n5 U; O& u1 i3 E
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 6 M' R, V Y0 E6 I+ htvb now,tvbnow,bttvb , k5 ^. q6 |5 b1 V, T" A5.39.217.76water-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 blighttvb now,tvbnow,bttvb0 X. S. d; _' s T2 N d
9 ?* u3 s$ h. _5 }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 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。* F* X% N8 g& |) S* d
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Septoria leaf spot infections will also help prevent late blight infections.
