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 * l. A' Z4 f8 d4 h5.39.217.77:8898+ ]7 ]+ D1 M! J
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb# \9 y2 B: L8 G+ G7 d8 G
' U# E) m- J# x# P) S7 `7 uSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ) ?% J2 ]0 |8 D1 B! N' ]# w* w3 q7 J
4 P H/ l7 Y* X% \$ _! Hnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.77:88980 ? P$ p* {6 C, h" a7 l
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 R8 _. E0 o% l! i$ q# z1 m
in color and form concentric rings, or a % \2 J5 }5 l) p) } ' D& v$ m: g0 _( B' wtvb now,tvbnow,bttvbbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, / Z) a# c6 b9 q: t) O. i& N' q ( d3 r$ U+ r/ o5 B! m+ D. jleaves may fall off. Extensive loss 5.39.217.77:88984 j: B- A* d) m. V. n
公仔箱論壇" c* T* D8 I M$ A; u4 \* z
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.5.39.217.77:88982 ^4 C! A. S0 r# z
" a7 m% y( J5 X' s: F' q6 `tvb now,tvbnow,bttvb " `; c* N3 B% j% `" bHow 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。( E$ [" j- E& O& O/ e5 u0 D. g
: X5 B1 n: N9 u) J' S, i$ Y. rTVBNOW 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 Septoria leaf spot also start , R% G0 n' k$ u) i
公仔箱論壇. w) S2 Y" |& C) m
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 5.39.217.77:8898( R( }, W" W b0 U0 k
5.39.217.77:8898) T2 M0 a& A+ E4 l1 j3 W2 C* k
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 5 Z) X, }" {5 u# h- N
0 W2 w2 `) z% p0 K, g8 PSmall dark spots, the fruiting bodies of the fungus o7 z4 {- Q' E
5.39.217.77:88986 v8 |+ l, [% Q* U% a8 ~+ d , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry / m( l7 T$ G9 U& J6 u& u8 w5 {) P & C! e4 x9 I0 k) V: L5 @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。and dead. Stems can also become infected but 7 j8 d5 X6 L: Y
5 _! r: I3 a9 m% ^* 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。How to Prevent and Control Early Blight and ; \9 |: i3 A* }# z# y4 @! H; F' G* 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。! Z. x5 T; _ o
Septoria Leaf Spot + c# Q" c0 i5 ?tvb now,tvbnow,bttvb 2 ]$ t% [6 H! w) A9 _; PFollow the 12 easy steps below to enjoy a ( E8 V# ?8 ]- f U& n 4 y3 Q8 l8 T: z/ x: K+ S( R5.39.217.77:8898long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. 5 J v; _7 g- R# }公仔箱論壇 ! T! l% c8 \# A+ ztvb now,tvbnow,bttvbWeed your garden. Some weeds, . ~& x% S) y/ ?9 J2 [- E/ G9 G' K ) @5 q" Q4 J+ Y$ b- C1 @9 alike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. 9 @* \. T* F; Z. K' {5.39.217.77:8898! L4 m4 e( [" T5 ]8 f$ V( a; Q; G Rotate crop locations. Don’t / v0 ?! F6 L4 {- ?& f: f" 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。tvb now,tvbnow,bttvb+ S) W4 U# K- K4 R, a$ `
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 2 B4 U7 L5 |! E, Z5.39.217.77:8898 5 }6 w7 @) r* _& k' z3 B v: I% n3 Kwhere tomatoes were grown.tvb now,tvbnow,bttvb2 n/ R A# L' S% ]- Z, k4 n. [7 ?
tvb now,tvbnow,bttvb; p( K+ C; T. _4 ~0 {5 P: e
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.2 d+ N7 J3 H, `8 i) P. `" `
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 2 d5 Y b( p2 C# j% t
6 `" i* r7 {! u" dTVBNOW 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 ! f' F: r* ^# j2 ~' d
) M5 d9 P& [6 x( Xtvb now,tvbnow,bttvbplants. 6 T- O5 O% ^% y4 Z* A8 D& Q% W' _+ q3 Z# L
Stake or cage plants to keep them 9 V/ @! x5 @: E- T% A ' K0 S* W- r* b* z; h; Y1 B8 Ftvb now,tvbnow,bttvboff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 3 o2 [" ]! d$ x$ |4 Q$ }! ]) Y/ htvb now,tvbnow,bttvb " o5 ]' C. H% C7 l& p4 ^3 D& ]5 ]7 z$ i; 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。cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 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。$ q0 a$ D& o+ {' t( o% ~
1 \( R; m" V5 Y; |+ Z: C S% Tspace above the soil without any leaves. Do not use \" o$ h6 `& ^# I\" ~5 A9 i# c ( D l7 A8 h2 k) V- M7 g( m/ Moverhead watering. - ?# N4 J/ ^% k: ]2 l4 w' ytvb now,tvbnow,bttvbAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 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 f2 R$ A& n, g( n& L% E# A
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 , k9 Q& g7 n5 C4 z公仔箱論壇 0 O' f! B, A. z* ~3 V3 C5.39.217.77:8898fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are # m: l6 e Z1 m8 f
# ~. ?! A2 D, O& d7 f! 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。enough. If a plant is heavily infectedtvb now,tvbnow,bttvb) i }- @2 `0 l9 Z! t* |
3 I* l% q\" m\" F# Y. t( Q ~ , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used , f4 V* g9 K, g" a+ W! f+ S公仔箱論壇 7 h5 ~3 E) h! t% 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。to remove diseased leaves should be disinfected before being used on a different plant.3 a0 }9 N# }: l( p
\& X+ d5 u( s- e9 Y7 M! E0 X# `Spray plants to prevent and control the tvb now,tvbnow,bttvb0 ^0 [9 v) t u2 F1 U, b
5.39.217.77:88980 u# B4 D1 v8 w$ I9 K
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try $ s h6 T3 U' ~, V/ a* ~tvb now,tvbnow,bttvb* k+ z/ {+ ?1 m j4 s0 _+ O
GreenCure. # z! z. |8 X" s+ P7 htvb now,tvbnow,bttvb . E n5 F4 E- `+ l; z% Vtvb now,tvbnow,bttvb ( m+ T# T& T& u% S8 i5.39.217.77:8898Late 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。; w3 i0 i6 O3 y9 z, ^+ \9 v3 v
& k# k8 Q& B9 J/ U8 t" 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。Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato ; @7 x1 ?3 a+ S' P. S/ k . i: R# l; p* J+ ]( }3 X% y v公仔箱論壇plants in a garden. Once a tomato plant ( [5 C' }8 m3 _8 ^: e 2 m u& t& R `/ L7 ris infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 公仔箱論壇0 B2 Y( |5 K8 \' A
) J# p/ q' H( ~0 e L( U1 `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。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 blight0 h& ]! D7 O% u6 w% {9 _( T
tvb now,tvbnow,bttvb$ ?8 l! u: }* V B3 X* O can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 3 g3 `0 |' R4 R8 \, J5 h: e5 Q. x4 K7 Q
Septoria leaf spot infections will also help prevent late blight infections.
