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 8 J$ I; [/ E5 x* E" z+ ^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。/ z; [6 }7 I9 U8 N+ I. b# x6 {' X
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.: D' z" J9 u% h* P
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" D0 n8 ^' g( a. `How to identify Early 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。. a9 G7 `) v( t
% S' d U: [6 Q! `7 O: 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。Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 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。- B: e/ W, u: Q- d
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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 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。% U6 l2 {; L& X+ `0 o
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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。9 M/ g( f\" o$ t\" Q
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, $ a! M* {& q) F" }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。 , Y3 Q3 } V; X K2 g1 X2 e& z% Tleaves may fall off. Extensive loss + j6 K0 ?) C& z) O7 z4 P3 L/ I
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.www2.tvboxnow.com( k' l& Q0 d. E, ^* O
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: c0 d% D+ j! w: xHow to identify Septoria Leaf Spot ! M$ c- s" O6 r4 B% T- xtvb now,tvbnow,bttvb 1 P( _% Q3 }8 |公仔箱論壇Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb# T' Y5 p$ _6 R( r/ D8 }
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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 % M- i; U: T% C! d" ^, s3 I9 }公仔箱論壇+ J9 L$ d$ D; k9 G
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. www2.tvboxnow.com4 ]; S ?9 ]* V( [& Q' N h
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Small dark spots, the fruiting bodies of the fungus公仔箱論壇( J: e; |7 s9 |5 d; v- {
公仔箱論壇- P* I\" [& ?* f\" n0 T , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry : g/ f5 B5 x) X# r0 Xwww2.tvboxnow.com 4 i! Q0 s; B1 |$ u/ Qand dead. Stems can also become infected but ) _$ y* K/ s1 L4 y! {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 T9 i\" U, W& L: linfection of fruit is rare. + I W0 A% k9 ctvb now,tvbnow,bttvb 8 }4 J: T3 G0 ]2 D $ X' H. J9 h2 r4 D0 vtvb now,tvbnow,bttvbHow to Prevent and Control Early Blight and www2.tvboxnow.com9 D7 c( k6 D3 p9 ? ^6 \
& J; L+ h4 K4 p- t6 Flong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇' D/ |3 Z# M; o, G3 ~
/ t' l; {# b5 }; D$ a+ j$ cwww2.tvboxnow.comWeed your garden. Some weeds, % u. {; h* w: Q# t( S, }* r
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.5 ~. g9 x1 L$ p
1 v( w0 i( m7 c0 _& r Rotate crop locations. Don’t 公仔箱論壇* ^( n* j' [# x
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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 www2.tvboxnow.com5 _! H4 o4 h. X2 d- z: V) R3 D
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 9 e) U* R- d! g# a$ F: fCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of www2.tvboxnow.com# Y# \& J5 ]% J$ |: [# f
& f' C' R) Z6 F2 B1 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。fungus from the soil to your # i' x" S- N! ^: T, ^tvb now,tvbnow,bttvbwww2.tvboxnow.com6 l1 Y8 _- S$ r5 X; T
plants.tvb now,tvbnow,bttvb$ R8 Q, C5 Y1 z
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Stake or cage plants to keep them / u* U3 ]% i4 Y6 ]1 l, S' f6 P 3 u' |# F- V! owww2.tvboxnow.comoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 0 |; E$ u/ u; v* V. |8 H6 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。 , q* w, A9 ?6 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。cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 公仔箱論壇/ w0 Q: ^9 p: I% H8 I/ V
9 q+ b( i% u* O5 P. c: \公仔箱論壇space above the soil without any leaves. Do not use N! h' \) S& [
5 a8 N\" U8 n; H1 Eoverhead watering. 公仔箱論壇0 N. @8 r. O5 H
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. % O+ z+ f8 W ^* e8 [ uConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow . N. E3 d E5 Q2 q X. _公仔箱論壇 0 y" b( c; `& t: e1 R: ]6 z/ 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。fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 4 T# p$ ` i4 r/ w/ ^5 W 8 |- \, g: b4 F& swww2.tvboxnow.comwet. Keep your plants happy and healthy. Weak and stressed 3 H7 i\" p8 _- U) c0 J
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plants are more susceptible to disease. * a) S/ Z7 M# a$ P( x; h9 W; G公仔箱論壇 8 W0 X0 p7 Q, N3 R" h公仔箱論壇Remove and destroy or throw away diseased leaves, both off the # U/ j3 O( X. C+ C( a; ` # r: r( _# }: ]6 j* Z: Ewww2.tvboxnow.complantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ( S' ?! ]5 r0 T N& N 9 S6 i7 x% h5 T+ C i& e' \公仔箱論壇enough. If a plant is heavily infected % S9 f8 o& s# S u+ C, B' y G8 Y4 Q# R$ n jtvb now,tvbnow,bttvb, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used - q. Q9 p- ~, S; {+ @www2.tvboxnow.com6 z3 r5 `6 ~8 e* y+ g5 v& L" G
to remove diseased leaves should be disinfected before being used on a different plant.! G& F- y% V ?
' }9 {5 h* ]2 j( M3 |\" g, A\" |公仔箱論壇spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try % B1 R; M; `; r, Uwww2.tvboxnow.comwww2.tvboxnow.com; O& U% O# b4 `2 y, m! T
GreenCure. . `1 I6 S! B( D8 T$ `8 z5 L公仔箱論壇 & g. n4 z( G5 V8 V4 f8 x j4 }; Vwww2.tvboxnow.com 7 k# R/ U& g4 e& m2 ^: e1 Etvb now,tvbnow,bttvbLate Blight on Tomato Plants # e& C3 O5 Y/ m i/ p" T7 S1 ctvb now,tvbnow,bttvb3 G! f( N8 k' X% ~: a' H4 a1 S
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 公仔箱論壇1 K, Y3 r) Y& L6 M T
www2.tvboxnow.com! E# g1 N' l7 Z% p$ b plants in a garden. Once a tomato plant o/ L! D, {1 R' P( c7 ^tvb now,tvbnow,bttvb |9 v( c0 F; `, s9 P3 k公仔箱論壇is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 公仔箱論壇; b: b3 q# c$ D
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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 + S& B4 C4 f4 w\" ^( X\" Q! ~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。% U3 n2 E7 R% C5 K' i can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 7 z. d& x+ \4 i8 F6 d+ T ) B6 P) }( P, Y0 N Wtvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections.
