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) ^/ h+ U/ O& V0 T, ]7 p $ m% A$ L+ l7 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 start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 2 J/ J3 h9 M% x6 K0 ztvb now,tvbnow,bttvb5.39.217.77:88982 R: W2 i& w+ j2 l
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How to identify Early Blight- \; U( X' i) V6 k
3 H0 K4 s3 ` b% `$ x" b0 iSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to tvb now,tvbnow,bttvb/ o9 K7 e4 s, |: p4 s
% ^- e$ K8 X9 o+ 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。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。7 n6 E6 t, E7 v2 u& e% |* L
! V2 d/ u- f7 S8 I7 g, h公仔箱論壇leaves may fall off. Extensive loss : @/ |' C3 m" ETVBNOW 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 t% ~$ R& _: Q' G" m. m
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.. T4 w$ A& k! a( w
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9 ^! K `3 I2 z4 k% aHow to identify Septoria Leaf SpotTVBNOW 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+ X* c; F+ b; {& j) @
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Symptoms of Septoria leaf spot also start 6 n& g1 @( ^' v! Ztvb now,tvbnow,bttvb5.39.217.77:88981 q2 r7 P, p/ ~1 J }6 Y
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change : M! z i% v. _2 _9 s9 d 1 x% e6 l3 S. I5.39.217.77:8898shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 7 _: T7 e+ B1 v) r. P; F6 U公仔箱論壇 ; Q7 Z; }, {; @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。Small dark spots, the fruiting bodies of the fungus6 F, D\" H0 p) ]7 U1 q X5 T0 h/ ]
tvb now,tvbnow,bttvb* k) U9 D\" k' {\" \ , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 5.39.217.77:8898! N$ _' L: N, _( c: o) z
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and dead. Stems can also become infected but 9 U\" z# M! K, \+ z7 l! }0 l7 v& dtvb now,tvbnow,bttvb5.39.217.77:8898: \\" w& m) _$ G6 y- }& q
infection of fruit is rare. T7 m4 {, O4 [5 i0 j& }2 |
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* j# E6 D& L$ n0 H J% s5.39.217.77:8898long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. & r% d) J& V' i公仔箱論壇公仔箱論壇4 f, \# i/ G6 i: V' B7 [ Weed your garden. Some weeds, : Z6 H8 U8 j @; {8 v
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.5.39.217.77:8898- ?/ H$ h8 L H0 J) `
: W* ]' f5 f# n9 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。Rotate crop locations. Don’t tvb now,tvbnow,bttvb( L1 ?0 \! i7 p V/ S( h" r# 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 公仔箱論壇5 r% s, S& y5 M$ v% i
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where tomatoes were grown.& f8 }2 ^! h6 ?3 F+ T+ J) b. v
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 5 B" e8 o7 x4 R/ bCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of ; _9 G4 O0 n) v# ~" ~5.39.217.77:8898tvb now,tvbnow,bttvb/ ~9 H; o' Z5 ?7 C
fungus from the soil to your 5 j# O7 j! y* f/ D
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plants.3 A9 E4 b6 k$ Y- j
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Stake or cage plants to keep them 3 w3 n' w9 i9 O) h2 b E" O! 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。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 a0 x7 W3 u: m) ~/ x' \) l! _
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 4 j3 V4 y6 r- [$ G" Y ]: q5 @
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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 , o" X9 ^1 S" |/ b8 htvb now,tvbnow,bttvb' Z, l4 G2 |4 E% X( ~5 o
space above the soil without any leaves. Do not use 9 X, i' D# x2 n8 j) j; R6 e. k9 i
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overhead watering. ^5 e2 Y j8 @/ y2 ^ n# d5 x
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 8 s5 l+ A6 k% t( }9 E! C+ b! D
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 9 |% D4 Z3 @# e; R+ {/ T" m. j公仔箱論壇 # c3 D. P, c& g) V; n% Z6 I; 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。fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 公仔箱論壇7 _+ ?+ T) f Q1 I- B
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wet. Keep your plants happy and healthy. Weak and stressed % ~ x\" u( c0 q$ G
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plants are more susceptible to disease.5.39.217.77:88986 f8 T; l/ Y' m' I! B# Q
: f( j4 ]: M$ G. N公仔箱論壇GreenCure. # m2 c' A2 ^/ Z! F- ?公仔箱論壇 5 w! c" N; ]8 ~2 w ! X; n) ^4 z0 B. r6 l1 D% L公仔箱論壇Late Blight on Tomato Plants 3 o2 l8 {& x K; J2 M5.39.217.77:8898公仔箱論壇, B1 o) V& P* d2 x" R
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:88981 n4 U' r( L3 U/ H6 |, Y
公仔箱論壇# ?5 G3 v9 e k$ R. H6 q4 r plants in a garden. Once a tomato plant 1 N: M' V1 V% ~0 i0 ~1 i公仔箱論壇! C/ H. E% {- m; ~5 G
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, , f3 Z1 Q/ |' ]2 g. H/ v8 Z: ^
6 |, i2 d/ a2 i$ a& f公仔箱論壇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 5 n$ }/ P! ]# ?' ?2 ]* j\" d- yTVBNOW 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。; t0 m6 f+ Q% ?\" S\" S can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb) s7 I) P+ v% q2 w0 M- E
, i4 q' x1 ~* L* U- C2 O5.39.217.77:8898Septoria leaf spot infections will also help prevent late blight infections.
