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 5.39.217.77:88989 s4 U$ s7 S- r4 ~0 c
' K5 A5 R7 B l0 M, c. U3 xcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.77:88980 i6 C) h+ X' Q7 ?9 n. K; U7 E
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How to identify Early Blighttvb now,tvbnow,bttvb' o7 q! |7 I* F$ E
' t B- m3 P, w3 {, L9 `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。Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ; _$ S; C! t Y" t, V: Q' J
% J! Y0 q# \1 o" gtvb now,tvbnow,bttvbnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown . X' C! h# ~2 a4 V3 I* ^
& G5 `1 n' ?% P2 g3 o6 C! M公仔箱論壇in color and form concentric rings, or a $ A1 i4 N3 i; O7 d- w * a2 Y# d m; T9 f5 k. \tvb now,tvbnow,bttvbbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, # I- d) N4 L# `$ CTVBNOW 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 C8 X0 H, s `$ f* X; g$ `! O4 n* wTVBNOW 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 ! J6 c, Z) |! H5.39.217.77:8898 W5 f8 R7 R! x. l% S; u+ O8 ~tvb now,tvbnow,bttvbof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 7 ], z0 Y) t* c% N 1 o, T' E, p8 Q . J& [% d* }. ~$ ZHow to identify Septoria Leaf Spottvb now,tvbnow,bttvb$ Q$ k3 N3 p5 y) T* a6 A R3 p* F
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Symptoms of Septoria leaf spot also start 7 m7 ?9 U g8 {( X; f0 Ttvb now,tvbnow,bttvb5.39.217.77:8898' k4 x R3 O! i
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,bttvb8 r# Q9 N4 @8 ~) C7 H
8 G& b/ T0 ^6 i- htvb now,tvbnow,bttvbshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. ; u2 O8 a' s. a: ^! g# 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。 ) `1 q) S0 y- H5 |# HTVBNOW 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 `& a' A9 J6 ?\" o: D
6 K( S7 K A! ?8 n5 `; [2 ~\" g0 flong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇9 c# ^, W1 A6 S# s/ E2 V* C
$ T- _2 \2 Q0 P% ~- O Weed your garden. Some weeds, $ a. G, S# t; z( U5 ?
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。; O7 R5 z3 }9 M+ ~6 k8 |5 e, z
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.公仔箱論壇- F1 @1 l% g( o4 s! I: \* A0 _
8 x; F% N2 g3 q4 W/ K/ s5 S+ Wtvb now,tvbnow,bttvbRotate crop locations. Don’t 6 t8 A. C- e ]3 V/ m+ j1 ?; ~. y5.39.217.77:88985.39.217.77:88989 k2 t9 }3 c. z1 Z0 \
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 5 U9 c0 T5 _, p, Y$ L( J3 gtvb now,tvbnow,bttvb5.39.217.77:88988 x9 T4 N& i" F S
where tomatoes were grown.tvb now,tvbnow,bttvb* C" W; _+ [' e- `* X& I
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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。% u. t, G) P$ A+ G9 Y3 ^$ R' o
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of ( T: x; h* t4 x0 @2 ^% 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。" m; c, }: J$ B ~5 `% ?
fungus from the soil to your tvb now,tvbnow,bttvb1 S8 A4 _& j$ V/ P& J
6 a% t! c4 w" i+ x& X5 V1 N2 q# a' Otvb now,tvbnow,bttvbplants.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 J- s) ^3 D0 p& X) ?3 r; V% y! Y
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Stake or cage plants to keep them 5.39.217.77:88989 o$ K! A* e. k( ]: e
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 5 H) R- q# t5 \4 I5.39.217.77:8898, I1 s- L$ ^4 y7 |2 P) u) A
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of - H7 E8 e* q* Ntvb 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。3 [, g. i" o% T0 f$ P0 _
space above the soil without any leaves. Do not use , X8 u\" e+ ^# {5.39.217.77:8898 , X, _* B4 ] s9 }: N/ soverhead watering. ' z8 r# B" I, A: G) U7 _) U
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ! G9 }! B* q9 e; Ytvb now,tvbnow,bttvbConsider 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 _& _6 [0 R1 m9 f. C9 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。: {5 a, ~ Z6 r. m6 u, {$ m
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are : X( {# {5 f; A! z utvb now,tvbnow,bttvb 6 q; T: d' j; j* [/ {0 kwet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇; L; u1 ~. E' ]2 o$ Y; L
tvb now,tvbnow,bttvb6 q. x- a) v9 l\" A6 i7 x
plants are more susceptible to disease. ' \) U, n1 V4 ~+ T公仔箱論壇) l1 a2 x. W- e) m9 r
Remove and destroy or throw away diseased leaves, both off the 公仔箱論壇% S9 p5 O& r, `: g8 V1 n- T
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early : h0 [9 [5 m ]3 U* |6 N) \5.39.217.77:8898 7 ?- {+ M- n; p4 ]- c1 [) \: |公仔箱論壇enough. If a plant is heavily infectedTVBNOW 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 A4 _* l; k5 m: F
tvb now,tvbnow,bttvb6 l8 }$ j9 j1 p) E , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used $ P; K- X0 T7 ]4 z- u5.39.217.77:88980 @) F/ B1 Q, a- j/ v1 j* @3 p
to remove diseased leaves should be disinfected before being used on a different plant.. J" M+ S+ [$ O: N5 p
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Spray plants to prevent and control the 1 H/ z# F! {+ n+ k
公仔箱論壇2 J8 N& q6 w' \8 ]3 H
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try ( a+ k( e& W5 v) 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。 8 k' e0 [7 n5 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。GreenCure. & L0 W: ~- o; ~3 G. s5.39.217.77:8898 u6 B( n7 d- N9 Y5.39.217.77:8898TVBNOW 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, }2 P' j, ?+ @! D0 k" Y
Late Blight on Tomato Plants公仔箱論壇( ?+ t3 f4 [6 {) h6 J0 r
# l% _* i2 d D$ k$ g0 P/ fLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:8898' N, a, V: N( H! c9 z
$ j3 L8 @; q7 F& V9 J0 u% i8 R# m; g/ _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 " R$ v' r2 [2 D Q# G5.39.217.77:8898( Z! c I- E7 G: x! h
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, * [8 W9 ^& j' P! y& P8 N8 u
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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 \" f* A5 ~; j\" wtvb now,tvbnow,bttvb 9 G }' p, F- k( l5.39.217.77:8898 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 2 @: @. @% ?0 K' W! o, t
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Septoria leaf spot infections will also help prevent late blight infections.
