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 tvb now,tvbnow,bttvb5 g F; Z9 m, M1 ~3 z Y
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 8 p$ u& t7 k& L ! Y- h% D1 b4 Q7 v公仔箱論壇- g; z8 g& Z X6 n F2 U5 f
How to identify Early Blight! S o8 B, H7 l, c) J4 X
" I2 B: z9 H. Z7 y% q, Ctvb now,tvbnow,bttvbSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ' v# s5 C7 I1 D2 L1 q, e 9 I7 b: j8 i* e* @www1.tvboxnow.comnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown ) o8 @% l' d: ?% N x7 { 3 u d& {' E" @, u) P Iin color and form concentric rings, or a / [* ]. Q9 J: P6 n+ @* F3 q) v+ e ) o% x7 h7 O0 p, F+ M\" 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。bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 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。, G, ]! G7 ]2 t" h2 B8 R& \" i
www1.tvboxnow.com1 V& V& }$ P" {" ~ v% Y! B! G leaves may fall off. Extensive loss + V8 r# N% F/ M, { , G7 ]5 ^; m& H5 d1 jof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. ! K3 P6 h1 ~) q; X) `* etvb now,tvbnow,bttvb) j5 C; R6 ?+ D+ k, g
! @' l" A/ M: s( eTVBNOW 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 identify Septoria Leaf Spot 8 n6 v# Z! L( }( C/ o- a- g公仔箱論壇 , _# |/ k9 e; aSymptoms of Septoria leaf spot also start * t9 X& C- Q8 I& {9 w x, y$ G - R% {8 \3 k' j0 Vtvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 0 Q' f7 G. z7 hwww1.tvboxnow.com/ m: R" J: F% o( e9 y1 n( t
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. www1.tvboxnow.com" c, D, x' A% i7 K
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Small dark spots, the fruiting bodies of the fungusTVBNOW 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 Y+ \0 }7 V% U/ f$ t9 X+ z* t
& b# c( r\" W* S , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 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。: x. w B' I9 u+ x; s
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and dead. Stems can also become infected but www1.tvboxnow.com( \% @. }& z, F\" r' q. x
/ X+ S: K. V( [( }- T. f* Nlong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.4 E E8 X6 D- z+ d. [( J5 g
- `# d k- y- s9 e' Etvb now,tvbnow,bttvbWeed your garden. Some weeds, 3 T! {, R' }" O; Q* L! f$ d
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.公仔箱論壇* d) d- w6 {3 q6 T
3 U/ w' A' [( _) M4 Ntvb now,tvbnow,bttvbRotate crop locations. Don’t www1.tvboxnow.com0 Z1 x* S U3 J5 C4 Z8 u
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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 2 v: V+ N5 [, O& ]. a6 a/ Z
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where tomatoes were grown.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。6 H7 b1 V' l0 z& h7 s" ^1 v
; C; T k+ k: U5 j' tGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. ]: s! e' K, Q9 r: T! U5 V3 }Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of " [* {0 e) g5 r4 \( z" D 0 x3 R) E7 d+ i7 A# l, d2 e8 Wfungus from the soil to your - Q+ v4 G" D4 E+ U + m, Y% Y- |- S) l+ Y; M' Hwww1.tvboxnow.complants.. W* v t, c/ I* N
$ R a) F0 m% o' Wwww1.tvboxnow.comStake or cage plants to keep them 公仔箱論壇' k8 K4 N d( \3 C" _
3 H4 B* W7 p* H7 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。off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ! Y, [/ U( l4 ?$ OTVBNOW 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,bttvb7 A# T% h6 `0 Z+ w7 V& ~, w( @
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ' {7 ~# N0 Z7 M3 C3 z3 p- Q* c& V 2 c) D( Q, m+ F3 V4 C* T公仔箱論壇space above the soil without any leaves. Do not use 3 `. ?; u2 m# R& {7 q' V6 mtvb now,tvbnow,bttvb & w- w1 i L) q4 S' rtvb now,tvbnow,bttvboverhead watering. 8 ]- M% _. V, a0 b A! b* {: h$ C. Gwww1.tvboxnow.comAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. www1.tvboxnow.com0 G0 ?8 @7 G0 W* d6 p
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 w& d$ M# N, utvb now,tvbnow,bttvb + c* l$ |6 W2 x4 X' g1 m* @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。fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are tvb now,tvbnow,bttvb( z& m8 l) w$ _ O8 Q
( P( i1 [) Y! `8 j- R! y! a( S) 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。wet. Keep your plants happy and healthy. Weak and stressed ! I5 j9 P% I9 Q% H/ B5 `: }1 V' Y公仔箱論壇' G4 t% `\" t# H
plants are more susceptible to disease.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。1 a3 r# t$ H2 c
6 S0 E& k6 e) J* |Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato # h4 @4 \" `5 l $ d3 o7 Z% t# P0 t( H8 M" eTVBNOW 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 www1.tvboxnow.com1 t9 K% \8 R+ @2 I' _
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb0 z' @' d! c8 P O. {5 U
7 U0 T2 [/ K1 d' S can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and www1.tvboxnow.com2 k2 f) ~% G+ J5 {# e5 f5 Z4 W
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Septoria leaf spot infections will also help prevent late blight infections.
