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! n' ^7 K+ f9 e* G" P
$ c$ N& l, Z, {5.39.217.77:8898can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. v* h! F7 @! r& C; p4 C/ t2 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。 - [2 c# X4 Z, U0 J3 g; p5.39.217.77:88986 C. Q; e7 h2 ]' L# n
How to identify Early Blight, K% }3 d5 B( \) Q" u; j1 v$ c
6 C: Y# Z9 {( A& 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。Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to + i7 A% m. |) L$ i( {& ]% N公仔箱論壇 1 L1 U& {+ }9 c2 }/ w/ _( t* a公仔箱論壇newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.77:88984 y: F) t; K+ z" t
M- K' w, `% v. l! q公仔箱論壇in color and form concentric rings, or a 5.39.217.77:8898( V: P% F0 s: m; N, K
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, . v$ z- D1 r) L5 N! f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。5 ?/ T: V9 I f( x5 m/ t q% y" v leaves may fall off. Extensive loss 4 \7 h+ @5 t' i0 r: t1 Z 4 ]0 P+ p1 p$ q0 xTVBNOW 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。of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. # q2 @4 G' _, Z, M2 |0 r; k公仔箱論壇7 {, T8 F" N& j B: A
- C0 s! s9 `7 Ltvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot 8 f5 _) |& K6 O" A公仔箱論壇 9 ], y% @' k) X" X. `# ^/ ISymptoms of Septoria leaf spot also start ; h& i$ |4 Q9 i# h3 x' c: }# q0 E* ntvb now,tvbnow,bttvb公仔箱論壇0 e$ I {. m# r, P7 i$ G6 f
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 公仔箱論壇! T; Y4 i: a$ n
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shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. , |$ k1 C# r: e1 [/ x , S/ q, [2 Q3 DSmall dark spots, the fruiting bodies of the fungus( T9 A$ d4 v/ Y; n$ v
6 ^; K1 R# p8 S, {& z8 @2 w, 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- v: }; d; ^. @
$ y% ?$ {+ A, [4 JRotate crop locations. Don’t tvb now,tvbnow,bttvb5 Y, }# B/ \5 x+ _# `9 w
5.39.217.77:8898# [7 t4 T3 c. x1 @3 o
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 2 u& K2 y3 U) _, G% k公仔箱論壇 $ D4 x- k* b3 f8 P+ N; W- F6 S公仔箱論壇where tomatoes were grown. ! A1 a( M! S* k4 Otvb now,tvbnow,bttvb( g7 t3 U8 i# O3 B
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 4 P( ]* L; T% [1 A, nTVBNOW 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。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 1 J9 m0 _! X6 Z/ m $ v7 I# q( m8 E7 B8 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。fungus from the soil to your - w8 \1 }3 w: K- n* T/ A& ~+ T9 L
" _ F+ N8 D; f0 D$ Z( m公仔箱論壇plants. 7 q3 z1 M+ Y& \# S$ U$ mtvb now,tvbnow,bttvb ! {4 X- S4 @& |1 P' w% G7 C6 G3 o* {公仔箱論壇Stake or cage plants to keep them + W0 a9 O5 w7 M( x # k% V0 y* I0 O: `# I& ~off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 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( u* F( V% |* X* X6 ]' U
! _) j% T) g5 N1 o$ A8 E: V& u5.39.217.77:8898cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of , X+ Z( L0 L9 q- U% F * z& o g3 L7 M/ ~; j! Nspace above the soil without any leaves. Do not use 公仔箱論壇: X0 ~' h$ T! K4 n7 ]
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overhead watering. 6 @$ N) ^( z3 R- m( n' S }" _
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. * ~2 {) \" G7 v8 K' m9 R1 a3 j( ]" |; M5.39.217.77:8898Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 公仔箱論壇. p5 l. z6 i7 S0 `8 f: [' V
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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 . }5 i y* p! c W- l3 M5.39.217.77:8898公仔箱論壇& }& M3 `+ w1 R8 K- u5 p
wet. Keep your plants happy and healthy. Weak and stressed ; l5 h/ E6 d1 {6 Q/ a4 k# Z5.39.217.77:88980 D/ r2 {1 O2 d C( }+ P
plants are more susceptible to disease., j0 E! e0 r+ h: @
# q u0 |: _/ [' \( t! mRemove and destroy or throw away diseased leaves, both off the ; T/ x3 \% H y& V1 `9 B! R) 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。 ; S! r; r* E6 O; r4 ]tvb now,tvbnow,bttvbplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early " F3 i8 J/ v8 U0 d, Y: [( ?2 g: 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。 ; i; K% l0 j9 V6 w0 ytvb now,tvbnow,bttvbenough. If a plant is heavily infected n0 H* b( ?1 |5 [: f5 b5.39.217.77:8898 3 V) K. e) I- g5.39.217.77:8898, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used + U5 v& y; O9 s' W 5 ?) s/ l& k; g5.39.217.77:8898to remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇4 B: Y2 l5 g4 G% c$ ?
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。- E0 b( Y! G8 t F$ D
Spray plants to prevent and control the : k% g- u+ W) ~3 O3 D) i
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try + ]) a( P, ^- Rtvb now,tvbnow,bttvb * \9 t4 u- H y1 Y1 N" RGreenCure. 7 O5 b% Y* [3 u- @% C0 G3 S {/ k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。& A" ]9 Y# k6 m w& \; m/ k% r7 S
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Late Blight on Tomato PlantsTVBNOW 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。# w" k+ C/ K7 F" a1 G) ~" o
公仔箱論壇- v, i) z! C/ `, W
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato % O0 N) F2 M _1 j7 k; X& 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。( J0 A: S: t: Z plants in a garden. Once a tomato plant 9 j# Q2 }) o B$ C6 e0 ~tvb now,tvbnow,bttvb 2 b# ~. F' @& 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。is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, $ d! j% g$ s1 `% ]8 a* S. |8 r 9 S; `" I( ?. h$ b; `; f/ G1 e! S1 S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 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。. q# p P2 n- e% x
公仔箱論壇$ r: |: x' U7 w7 t can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb1 D1 d& c3 q ~, t) q
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Septoria leaf spot infections will also help prevent late blight infections.
