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 2 ~% n$ U% O" E & _; d4 A- g( ^/ mcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.77:8898- X6 F! G( E; g: G3 j
3 R' a7 g) N4 o9 }: I8 @公仔箱論壇 . t. c2 m1 s/ D2 v: `8 K: f公仔箱論壇How to identify Early Blight 7 i7 X& B# i& w5.39.217.77:8898 5 k: k5 x! m( Z2 K+ i+ U7 @0 ySymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to / t% F- [1 v# vtvb now,tvbnow,bttvb 5 Q x1 B$ E/ X2 ?- B( `tvb now,tvbnow,bttvbnewer 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。" m" n, V% w% S: l. U1 M' d6 D" F$ T1 {% V
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in color and form concentric rings, or a 公仔箱論壇1 S2 \' \8 B% }5 r0 u; k5 \+ H) ?
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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* l" y; _( G: g2 @+ l2 M$ A
: c/ N# T6 T: T) k- |' G6 w2 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。leaves may fall off. Extensive loss 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。* p$ O5 Z3 b/ K6 |8 q
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. * M# I5 M* A2 o3 a' P4 b5.39.217.77:8898 5 L: l1 W% ?" P: B/ y; v9 o% Z 0 d" v; A: C- Z& g* q4 ^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 Septoria Leaf Spot $ x0 k0 ^) v* b; V* @公仔箱論壇 ( P/ B6 p6 ?3 B6 R, Y& T1 U+ G8 ZTVBNOW 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。Symptoms of Septoria leaf spot also start ' {8 I5 y# C7 A% g. i, x- F$ GTVBNOW 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。公仔箱論壇: D; _1 P" C# [3 p$ K
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvb now,tvbnow,bttvb: V) U+ X5 O) K: O5 X
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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. ! Y6 ^& m: M7 F' d& P% t9 J
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Small dark spots, the fruiting bodies of the fungus \" [ Z% v. l2 @1 d6 H2 t8 Z公仔箱論壇 ) A\" ?- v7 P8 c4 z+ Ztvb now,tvbnow,bttvb, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry $ Z1 P0 i- H# T公仔箱論壇 7 d" n; N3 N" c8 T8 d( ttvb now,tvbnow,bttvband 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。, U; W( v& j; d
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infection of fruit is rare. 1 u1 Y( Z& w' V0 Y# itvb now,tvbnow,bttvb 0 \ p6 |8 |( ^" D7 L ' R9 I8 U& ]' P9 [/ k0 Y/ |5.39.217.77:8898How to Prevent and Control Early Blight and ) |9 A! t0 e6 G' S& E ( {# ^8 K( U$ N# QSeptoria Leaf Spottvb now,tvbnow,bttvb. c+ t7 x( d" V. k
% _# y* d7 Q! W. I5 U/ u: x! t0 \5.39.217.77:8898Follow the 12 easy steps below to enjoy a ) g1 g; }- v6 U. u8 ]1 }5.39.217.77:8898- z1 h1 @. p! D5 z
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.tvb now,tvbnow,bttvb/ ]5 ~" v& P* c- _6 j" S
tvb now,tvbnow,bttvb3 w q: d1 G/ f% U8 `5 D3 t! U. D Weed your garden. Some weeds, % q9 ^+ d5 l* d2 ]; ~5 [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 l- t& m% p, P6 T {4 G
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. , g' S$ z0 H( c! r) Q, _7 `6 |2 R5 ]0 ~ Rotate crop locations. Don’t & V$ U' Y" \- m( bTVBNOW 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。 - P- t$ R) P4 \) F$ ~plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 公仔箱論壇$ {9 v7 ~8 N+ ^; [: n% o( W
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where tomatoes were grown.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。( e/ m' M7 M2 J
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 2 c {; X( v" M' ~- p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 公仔箱論壇# ^& f1 M9 s4 ] g% x! C, c
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fungus from the soil to your : o; Y& |2 u$ u$ I4 b3 h/ m ( A0 m9 d! U, a3 O8 M# w2 `5.39.217.77:8898plants. 9 N% C$ L( m A9 y2 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。7 g& U( X* W7 s7 V7 w3 i6 L
Stake or cage plants to keep them - M P; ~, P6 H. T7 Jtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb, E1 g3 A# t" X# p9 y
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。- C" B" }" }7 K# e
, ?4 j: y* T* ]. P5.39.217.77:8898cages. 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+ m3 O9 p) g8 o+ a
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space above the soil without any leaves. Do not use tvb now,tvbnow,bttvb- E( L/ Y: f; p2 T' B# R+ x: 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。+ o% V! b: U( }( b7 M
overhead watering. tvb now,tvbnow,bttvb( L) X2 J9 t* q2 h" b/ H8 H- @% s) m1 s
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 8 k0 p- p/ {8 e, @: T" i
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; F5 _ g$ X* ~7 e* c1 q7 f
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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 ) X: `" k6 \3 L4 q, Z公仔箱論壇tvb now,tvbnow,bttvb% k; t1 O4 x, t& M6 D r' f
wet. Keep your plants happy and healthy. Weak and stressed 7 X8 b, j! A5 Q( t( Z! a. r公仔箱論壇2 w& g) Q; p6 K
plants are more susceptible to disease. + T: V2 H8 ?# Z, }0 r& _ # {8 u9 n9 ?4 `* X# V+ YRemove and destroy or throw away diseased leaves, both off the 公仔箱論壇; G) K Q# z2 K
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early tvb now,tvbnow,bttvb8 C6 h$ m: I, y3 y+ l( q% r: ^" M
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Late Blight on Tomato Plants ; Z, q4 G# D8 m3 o4 k5.39.217.77:8898 & b R/ I; h* `: V- q5.39.217.77:8898Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato : q8 S3 \+ I: L/ a, m% {" Z: g) v5.39.217.77:8898+ w/ z9 B5 V: Z# Q; | plants in a garden. Once a tomato plant ; D9 P$ l, m& D" e" v3 ~' n Ktvb now,tvbnow,bttvb1 B1 J+ @; }1 o f
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, * ^9 G& C/ q# I; g% F; e! e3 r$ @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。# v+ J- T, y3 {% t
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$ N1 P* J8 H% L\" @8 d) x! n
' F; K t; h\" `( z can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 5 i( G: x' x! Z' W: c7 a' ~, Z
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Septoria leaf spot infections will also help prevent late blight infections.
