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 : ]% P% E' {- A3 z. X# ^" htvb now,tvbnow,bttvb - s" m4 ~7 c6 r1 _9 ocan start at any time. Infections can occur anywhere and are most severe in wet and humid 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。' E6 B0 x% r3 d6 f4 C
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How to identify Early Blight* ]* E1 t/ G3 s Z) k: W l U8 E
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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ( d+ K2 ]$ }5 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。# r7 ^3 ?7 _& h6 j/ ~4 C" r/ V! ^
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown ; k! B# m1 n4 X2 B7 b3 j% `1 e5 Y) U: d+ C+ U
in color and form concentric rings, or a & R7 `4 P* J$ n% P/ m' O 3 C4 ], A4 c2 w1 W* K+ \$ Zbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 8 g" R7 r- T7 l5.39.217.77:8898; Q1 |4 B' Z- B, X* o$ x leaves may fall off. Extensive loss 8 V- F" L$ C( z/ i" N8 S9 q公仔箱論壇5.39.217.77:88988 E" _' D; e3 F+ K
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.6 G5 M% n: v; Z2 i+ Q! u
# R- [7 s3 O% Q/ n5.39.217.77:8898 $ M# ^% d+ a5 K O; v7 n公仔箱論壇How to identify Septoria Leaf Spot ! t+ s& f# `6 K+ B# i$ S9 C4 ^" g公仔箱論壇 & i1 j( e1 [& b8 {& ttvb now,tvbnow,bttvbSymptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb# }# m( F6 t* v p" v7 k
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on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 4 v# t! V1 S- C4 D. l1 d% i& U# U, p; j公仔箱論壇# U1 Y3 A z4 K3 F& h( l8 e
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 9 `$ r- L" U- b. ?6 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。5.39.217.77:8898: P! f6 k! L6 `9 }" Q2 N
Small dark spots, the fruiting bodies of the fungus公仔箱論壇6 K6 u* O1 V& O- Y
& M3 m" k1 p3 D, w- u! JWeed your garden. Some weeds, tvb now,tvbnow,bttvb K- g! a2 o% k# e& L" P
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. k9 x- `3 W+ W$ xtvb now,tvbnow,bttvb2 ~$ J7 m8 r6 P% U% b Rotate crop locations. Don’t " K0 V, N7 J/ K- C" K1 g6 B公仔箱論壇 % D7 Q" j. s' q2 ~, \( x5.39.217.77:8898plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas * W4 S! t, k4 G ' G7 |- X- S8 g9 K' twhere tomatoes were grown. H) G1 \" w8 p* y+ \( |: }$ y$ N5.39.217.77:8898 3 D7 [2 ]- |' i+ b. y$ ZTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. # a+ t3 i1 Y* A8 j/ rtvb now,tvbnow,bttvbCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of / _7 |: k/ ]1 i& u+ g# MTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。: `1 `, V3 v R% m+ i; z
fungus from the soil to your 公仔箱論壇5 W0 R) b/ q4 F4 Y P
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plants. 9 \* c& O" ? w% f: @: ^ 9 \) C, a1 v2 G2 `& o% k; QStake or cage plants to keep them 4 _8 v9 ?" s/ T. v6 G0 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。* \ |4 K4 b: {# D# v* q
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 5.39.217.77:8898, \8 O7 ^ l# i; ^9 R" k
. M0 p& B2 i- Z( lcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.77:88984 p7 N. B; {( ~* C
; y) ~; ?: p& Q! ^7 T( tTVBNOW 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 5.39.217.77:8898\" v+ i3 R3 A- Z2 `: t
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overhead watering. 9 r9 O& U0 t1 V/ ] z. S p. xAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ! Y! P) v# a3 _- r' F
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 3 E; {) [3 w* i6 v5.39.217.77:8898' ?8 W5 e% M- {9 K4 M
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 5.39.217.77:88983 A$ t. ~! O# f" F. B% v) e
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wet. Keep your plants happy and healthy. Weak and stressed & z' j5 ~6 c+ x4 z6 @ 0 I* }: K F) g) s8 ~公仔箱論壇plants are more susceptible to disease. 5 I4 A$ G/ x- V& r: y4 sTVBNOW 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* ] R( P1 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。Remove and destroy or throw away diseased leaves, both off the 0 t1 y: {# |; ?7 G, dtvb now,tvbnow,bttvb / u1 V) {$ |4 g3 P* u\" O9 V# t公仔箱論壇plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early - A% X; y# s9 J$ d* O. Y) L* X4 A5.39.217.77:8898 " Z w& O% X: `* m8 u公仔箱論壇enough. If a plant is heavily infected* ^, E$ b3 j+ O* C
9 _& ^) L- _- @ `8 G A , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 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- K- O3 b+ H4 d( m
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to remove diseased leaves should be disinfected before being used on a different plant.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! B4 F, U- ^: R) T- y9 y
6 _7 _6 Z$ ~1 v- M$ E$ J% k公仔箱論壇Spray plants to prevent and control the : {$ p( T$ p8 i4 R公仔箱論壇 : J m1 U& l6 W$ \; L6 c5.39.217.77:8898spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try ) `" ^3 C- O" k3 M) u5.39.217.77:8898 * w4 _% B* V: z4 H/ I. cGreenCure.5.39.217.77:8898$ x3 W- ]2 e0 r t6 T0 D$ u: w
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Late Blight on Tomato Plants , c# W$ I$ D! b1 u1 j" k+ T" jtvb now,tvbnow,bttvb- ~+ W/ H. U. r0 [; Y
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 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 t* \- ]4 r! o
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 E0 D: _. t" I" e" d- U plants in a garden. Once a tomato plant 6 T: R- x$ W' u& Q3 r8 Ptvb now,tvbnow,bttvb/ ~# U2 s- k) d* Z
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 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 z7 R+ O" U+ x: A ~! U
0 c2 m3 ]# n1 b) M3 ~tvb now,tvbnow,bttvb can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 5 S, Y1 u1 h& I! _ 6 k6 r! Y" c0 y8 S4 F2 `9 X1 O5.39.217.77:8898Septoria leaf spot infections will also help prevent late blight infections.
