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 ' F- ]! u+ H% J6 _& N/ vtvb now,tvbnow,bttvb3 j [& Q( e- `- q% B! D
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. T# Z/ t$ U( T. k& S0 V3 ^* S7 r7 _ g * O# S- }# g; v' A% 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( G$ M, [' |2 w3 Q9 s
How to identify Early Blight: _; f3 E7 V) @. }. `7 T* u
, a. _) ^' K6 z$ t# U5.39.217.76Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to tvb now,tvbnow,bttvb5 O. c9 j) e. I @7 A6 k0 h
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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 / m3 N& K4 I8 z2 P5.39.217.765.39.217.76: ]3 b' U* z% x5 h9 d6 f% J
in color and form concentric rings, or a 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。 K! Y' w' y% l* o% H& n: Y
6 Y7 x9 t1 V! k4 ?% n! D; Lbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 9 S* t0 V( R5 C5 N# H
- M Q0 Q# s7 Y7 k3 E$ G# L leaves may fall off. Extensive loss 1 S) H4 A5 \6 d- mtvb now,tvbnow,bttvb 9 k1 C# p5 d( I' dof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 5 k# W; W- E, ]3 C- |8 @# qtvb now,tvbnow,bttvbTVBNOW 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。 `+ k5 Z" W2 A9 o1 i9 S7 t
% ]5 o8 A; c: V; x6 ^8 BHow to identify Septoria Leaf Spot公仔箱論壇, i! s% x, I$ r
]$ P4 g, \; v+ M% _ 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。Symptoms of Septoria leaf spot also start 公仔箱論壇/ }/ v2 E# s l) N) F+ d0 g" k
8 }) W( e* ]; L% @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。on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 5 j. S- {# w( W4 t8 \; M5.39.217.76 4 _6 k. y& O4 X7 L% M2 o7 ]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。shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. * A# |3 @6 r4 j/ |) a公仔箱論壇" h! M3 c9 P" ]* e2 J' h5 v/ ?
Small dark spots, the fruiting bodies of the fungus9 K: _4 C; p5 |6 W# 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。% v2 q5 g1 P3 v! G) o9 i+ }! z5 ^. p , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry tvb now,tvbnow,bttvb1 b( D. V, g* P
- X2 w9 ~/ M* b8 t) A {3 E: Jlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.) G& H' b! m; ?+ r# D/ O- m: P
5.39.217.76% N6 {9 O( N3 J1 y# e Rotate crop locations. Don’t . z) q( @2 e+ h5 i
. E8 B" L" Y9 p& ftvb now,tvbnow,bttvbplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in 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。- I8 V& R& [8 w/ x' }* y7 B# c
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where tomatoes were grown. H" N6 x& a5 e5 n, A5.39.217.765.39.217.76" n& Y' v+ F; z
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 4 C2 h" d, C! ?. c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 6 Z" n8 R! t* C& v' C! t& l! u5 z- r
) y# C7 o6 e, E) l0 T) B5.39.217.76fungus from the soil to your , _2 a2 D# M [+ i8 C& g
6 x) E# I. O3 t/ S% j5.39.217.76plants.4 N0 T8 j4 m- q; m& f) f1 Z, d
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Stake or cage plants to keep them 公仔箱論壇, {* b3 [% H6 I: Y
2 ~# r; b) {# G: K5.39.217.76off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 公仔箱論壇+ p6 W9 Y/ ^8 `8 R: a, `1 C& a
1 l& w9 F% p0 J, k( n+ ]! q+ f' C$ Icages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ! ?7 v* k. v0 w3 R/ b: }6 J公仔箱論壇 ( e3 l P6 j# T0 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。space above the soil without any leaves. Do not use 8 h3 v+ i% \1 @6 a: @ 3 V\" S( F# Y1 {9 Zoverhead watering. + u! e! o7 ]9 m, a4 z/ o3 `
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 公仔箱論壇% C0 X( Y" t# }3 n
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 ! j* v5 O* z( s2 h* I1 n- f6 H
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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 / I u$ Z- C$ y0 h+ p: _* Q1 Ztvb now,tvbnow,bttvb+ u/ a4 b( B/ d7 |7 {6 N
wet. Keep your plants happy and healthy. Weak and stressed 7 x8 O% g# m1 c8 x / c0 n' ~5 a4 w1 u0 t x* Nplants are more susceptible to disease. S) \+ ]) X# |6 r! y% 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。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。( q1 f; M8 [3 r2 q. |" d% C
Remove and destroy or throw away diseased leaves, both off the 5.39.217.76\" Z4 i4 E/ K5 {/ H$ I6 c8 ~; C
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 公仔箱論壇" B x+ o, W( L# Q
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enough. If a plant is heavily infected 2 M$ p8 u: c9 J% W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。7 v8 X; F, W0 K$ Y' g- Q , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used tvb now,tvbnow,bttvb2 g& _" B& N- L: h: 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。+ a$ P8 B; P" u& E: x! d
to remove diseased leaves should be disinfected before being used on a different plant. 3 M6 i9 x, h! L 9 {5 n* x) s- G# b5.39.217.76Spray plants to prevent and control the tvb now,tvbnow,bttvb+ g1 e) b, g3 i
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。 {/ `! y9 n\" U' Q- V
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try % G6 F* Y ] y; y4 k( T. i$ ATVBNOW 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 e7 ]8 E+ K! N3 C
GreenCure. 4 X8 o( ^2 T% f$ I4 o5.39.217.76 . P7 i, Y) ?# v7 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。! ^; _! s' J1 ^
Late Blight on Tomato Plants 2 T5 c0 W1 J9 Y* o5.39.217.764 E, V9 @4 @. P( e0 @
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 公仔箱論壇0 f# |2 _. N: G9 \+ p2 V+ Y8 q
3 i. g: r: u/ w8 a; vplants in a garden. Once a tomato plant " Q6 [' v& s6 w5 y5 h$ Y6 c公仔箱論壇5.39.217.76, t0 M) T. ^$ A! T, O
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 3 t/ i4 s i- S8 I# i6 B7 p0 G 4 M# m( Y: j5 f; E+ twater-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 / K7 V0 L4 m0 Y$ ]/ T\" m1 |公仔箱論壇 1 q+ \: a2 a; Y! wtvb now,tvbnow,bttvb can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 7 y7 L9 f/ m# X# _3 I5.39.217.76TVBNOW 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。" W7 u3 D6 d# ?$ P; ^
Septoria leaf spot infections will also help prevent late blight infections.
