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 . b" i8 M. q; I4 W1 h5.39.217.77:8898 ' ?% N G4 g d% P% Zcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb& m! J) ]$ A% I3 z1 u2 v! ?
; p, y( C6 N: ~- ?公仔箱論壇 / W4 J4 I2 Q8 h0 Z9 N5.39.217.77:8898How to identify Early Blight5.39.217.77:88980 z3 h% I& g: r0 O
6 e! y+ K1 T3 y9 n+ ?5.39.217.77:8898Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 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。5 `% [! k! Z2 |6 C; e4 z9 ^0 B
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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 + ? \/ n/ j& v: u' b: t) g
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in color and form concentric rings, or a $ ?# o# \; P& u2 c% } & G2 D: R$ f. l0 V; ]) _\" h }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。bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 4 k2 i2 f# Z J- C6 r# qtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb5 m' {( ]3 O* a0 f* ` leaves may fall off. Extensive loss ( W; [+ t! `- a. i; A& w9 Y
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.7 `4 b: o' ]$ {) u2 p4 f
% O6 A6 i( E) ]; E/ U8 Jtvb now,tvbnow,bttvb # p" |+ B- t7 Z5.39.217.77:8898How to identify Septoria Leaf Spot9 ^2 @9 ]5 Y7 L 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。* o0 X1 G% s v: w& g8 r
Symptoms of Septoria leaf spot also start 0 Z. A: `& ~* M2 [. I9 k公仔箱論壇 ! v* f) n( u+ m( }( L公仔箱論壇on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change ; X: S5 n2 ]( [( S1 P G5.39.217.77:8898 " Q1 l& T6 M. ~/ v# G" T: d公仔箱論壇shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 5.39.217.77:8898 E# C* x$ l1 t r
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Small dark spots, the fruiting bodies of the fungus 1 M0 H# n3 C! [- M5.39.217.77:8898 , w/ w& I- }\" P; L5.39.217.77:8898, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry ) z( h: E, G; ~* D! S4 z5.39.217.77:8898 ' y. }) N4 o; I2 J/ [5.39.217.77:8898and dead. Stems can also become infected but tvb now,tvbnow,bttvb3 ^' n: h( @7 c$ Z1 H( u' U' W
; u- H) _9 P0 p4 v8 ulong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. / }" u/ }) c7 v! H. ]5 q) d/ K& j公仔箱論壇 , i g3 J( G/ |# E! O; e$ _$ ~7 M公仔箱論壇Weed your garden. Some weeds, 5.39.217.77:8898* r8 x# H3 D/ p+ z( ]. g3 u M/ R
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. & M7 n9 M6 u# Y4 H公仔箱論壇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。4 a$ a H# h& y& L5 |' b Rotate crop locations. Don’t 3 X/ f; h% ^# Q5 ? U C
' M+ w H5 p4 H& A# e/ M* J" U6 `( ?5 Wplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 0 {' ]6 F5 T6 w1 [1 [% 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。% ?$ d4 g0 X: y6 l2 G9 @
where tomatoes were grown. : M0 a9 Y3 p4 N. Ttvb now,tvbnow,bttvb5.39.217.77:88984 |+ @3 T( I6 E3 K
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.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。4 S: T/ a( O9 `) k' k/ w7 L( |9 y
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of ; `9 k5 @: H! s4 qTVBNOW 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6 k- [+ j6 y* ?4 M a
fungus from the soil to your ( b2 D+ W& w$ u, E [tvb now,tvbnow,bttvb # |6 i4 u0 M) R% a5.39.217.77:8898plants. : T# u# U* Q+ }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。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。9 [) ]* q/ \+ ~5 r( a
Stake or cage plants to keep them 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; \; }" z. p/ S' a
* U7 ?; ]- j& l公仔箱論壇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) J6 x8 x1 W1 p9 r/ A7 z
5 A( s; E( n: w0 B# ?5.39.217.77:8898cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb0 o2 F' z* P* u$ b: Q8 ]
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。* _8 x/ ^3 @6 s* y5 }3 f+ n
space above the soil without any leaves. Do not use \" X( S( }+ }& X. ltvb now,tvbnow,bttvb8 g2 m) k3 K2 g$ i \; ^# L
overhead watering. 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。1 ?% Z" A% ]4 N4 A+ g. k
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. $ n1 d# x( |9 @; P4 X) z5.39.217.77:8898Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 2 z+ }; K0 T/ M7 V: _+ K( e ( J$ Q0 _" M* k( ]& I# Y2 p# Mfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are tvb now,tvbnow,bttvb6 V$ S! N% O6 J) U9 _" ~- J
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。* _' B6 D6 x2 u9 C; H" o$ C" ^
wet. Keep your plants happy and healthy. Weak and stressed \" \% O6 h# {* G: J. R & Z$ z' Q4 n, v公仔箱論壇plants are more susceptible to disease. $ i- }% y8 m$ Z9 X% m3 ~& K! u) Z% `; L" A8 @3 H0 C7 H, c0 K9 L
Remove and destroy or throw away diseased leaves, both off the 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! [\" X' b7 l9 ?! a
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 7 ~- {7 H/ p1 Y+ ~2 q d / m- B Q0 ], S7 Q+ Y公仔箱論壇enough. If a plant is heavily infected5.39.217.77:8898# |6 Q4 _5 p' s7 t
& {( W9 X7 Z1 N v. K1 y5 S& d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 3 u6 J F8 e7 g* R! B% T6 Y公仔箱論壇" e% L1 l) y. K3 U/ K4 C. Q1 g
to remove diseased leaves should be disinfected before being used on a different plant. 0 ?' D( c$ m8 e% H5.39.217.77:8898" H( ~3 S" ]# [' d" h6 c
Spray plants to prevent and control the 5.39.217.77:8898; i+ Q( g% y% S) E' G' Q( O; b
/ e- U+ b, W6 i\" Aspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try / y' |/ q B W6 \8 I0 g8 E; htvb now,tvbnow,bttvb% k0 o& B& \3 e h" `3 k
GreenCure. 4 k; y; V$ Y9 K2 r0 `5.39.217.77:8898 7 X& I( o9 i& G& g8 g5.39.217.77:8898公仔箱論壇$ e0 E& T& U, M, ^ Y, |2 l
Late Blight on Tomato Plants . B o- j% O2 k2 ^6 ztvb now,tvbnow,bttvb & ~4 O& E& G0 T: ~8 u0 Z: Ytvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:8898* l( ]/ W2 Y* y; D. u2 Y
公仔箱論壇0 g5 H# U4 L) X& P# r6 s plants in a garden. Once a tomato plant tvb now,tvbnow,bttvb5 G) J2 N8 o$ ]5 W$ Z
( }3 A% Z- L" V4 v$ ^7 Xis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 9 l/ S+ V: i' _ Q9 D8 {# O5.39.217.77:8898 # f; i8 O: C7 j3 jwater-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 blightTVBNOW 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 y: f, m9 ?( k Q\" w
公仔箱論壇. x! }8 }1 h2 R! G can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 5 ~1 O0 N* p* O1 X5.39.217.77:8898 ! V. @5 V. I8 {7 `* p( m. OSeptoria leaf spot infections will also help prevent late blight infections.
