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 5.39.217.77:8898& {1 \- x2 J2 D* E% }
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.0 V+ F3 J- U3 X
3 m0 M" M. S) _+ {5 W: Y0 i, z7 t ; _+ m- z* H! e4 X8 Y, B* d5.39.217.77:8898How to identify Early Blight. Z& N( g$ c8 c* g. L
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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 R3 p/ Z C7 |, n) |9 ~9 i+ ?公仔箱論壇5 G; ]8 Z/ o3 L/ K" @0 s+ k
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 公仔箱論壇( K: j; p. K' s8 z3 s4 g3 D' X
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in color and form concentric rings, or a & M+ g* D1 }$ ^; p
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇' u* D% K/ g6 Z" Q% [
# y5 a8 j4 s4 m/ B* t C leaves may fall off. Extensive loss 9 y& y9 P9 B6 Ltvb now,tvbnow,bttvb5.39.217.77:8898. y1 q0 Q5 n$ w% h% \ o( X8 v* o% @
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.' A3 b- K3 p w' O* }
2 |$ w2 N+ x0 @# l; z0 e + Y; Z9 L4 _* Y5 utvb now,tvbnow,bttvbHow to identify Septoria Leaf Spottvb now,tvbnow,bttvb4 m4 }" Q, T8 S9 E
' v* c; i1 S! DSymptoms of Septoria leaf spot also start 5 u# u) i! H3 T( d, ?! j' Z. d5 v - m% I7 I/ h) c( O7 C5 Zon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 1 Y2 S3 {# Y9 {, {7 L/ Ytvb now,tvbnow,bttvbTVBNOW 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。% n% ^! ?# \: f
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. . `+ T3 [- W0 r z
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Small dark spots, the fruiting bodies of the fungus5.39.217.77:8898/ f$ T( u: ~7 A) T% h4 g
' K& b& G' R0 ]tvb now,tvbnow,bttvbHow to Prevent and Control Early Blight and + T5 s) a2 ^: {- Z* \
* X/ d/ b: u- J0 z; h2 @' A4 vtvb now,tvbnow,bttvbSeptoria Leaf Spot 4 |' U) t' X$ S公仔箱論壇5.39.217.77:8898% p! z* F5 c" j* e& q0 t
Follow the 12 easy steps below to enjoy 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 V0 l6 S1 R1 Z& t9 ~$ e; [+ }4 N
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. 7 {8 G( y' u1 [) W* M公仔箱論壇5 Y% v( R% h4 [8 X4 q9 _" B Weed your garden. Some weeds, tvb now,tvbnow,bttvb0 T0 p8 ^1 O; c3 N$ y0 @
tvb now,tvbnow,bttvb5 }7 K; \4 u+ z. @! |' s7 J
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. 8 o. J, F- e6 o O( utvb now,tvbnow,bttvb $ x7 G8 f; W0 V/ z x* u公仔箱論壇Rotate crop locations. Don’t 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。# p* c4 { w+ _4 j0 I% s! I
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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 ! v9 r3 U- T0 T% J5.39.217.77:8898 / E0 {( g1 X! Vwhere tomatoes were grown. ; L; Z: t- t7 b! ]tvb now,tvbnow,bttvb 9 V% r/ e! y: N: o8 C- P1 |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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.5.39.217.77:8898" J( R% ^, ? d" L4 e, G: P" F6 z, W4 m
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 6 n& v* e3 {9 Z5 k7 X: o" a公仔箱論壇$ T! }( H& z' H! D/ h( ^
fungus from the soil to your - l) I* ]+ c3 f' ~. t公仔箱論壇 4 s- e# z7 I* \8 s/ X9 jTVBNOW 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./ g0 L; L2 e" l* b
$ b! t( Q# O* J1 G% P& M; B3 h公仔箱論壇Stake or cage plants to keep them 9 h7 C. ~! K/ V3 R+ K7 r. ?tvb now,tvbnow,bttvb 7 f. X! I2 D! z) q8 T# B- v4 Y7 Q& Woff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and tvb now,tvbnow,bttvb0 \! F; B) k# e3 {& y) F! Y) n
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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.77:8898/ n6 z: X3 b4 T/ |& ?3 t0 r5 R3 a+ y
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space above the soil without any leaves. Do not use - R2 e% h% O6 n& 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。 3 G0 g% H$ }) c$ d2 P7 b公仔箱論壇overhead watering. : t' ] T; V6 UAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 5.39.217.77:8898+ L! a! u1 b5 _% Z7 W
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 ( s! c- `5 z6 ?8 ]& ` 0 J. w1 t$ [" X6 f5 utvb now,tvbnow,bttvbfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 3 T/ j5 s1 c5 y" n! H公仔箱論壇5.39.217.77:8898# T+ z* `: |7 e4 v* D7 \* ?
wet. Keep your plants happy and healthy. Weak and stressed $ L3 X& t\" `6 |tvb now,tvbnow,bttvbTVBNOW 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。* l) d6 q- ]8 l
plants are more susceptible to disease.' v: I3 d2 C% S' |* W
' y/ {3 A% q* d; i, Y, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 9 ^+ ~" _' p/ h; M4 n& ?公仔箱論壇7 V. _* O- L/ [) t& O, M: y8 M2 z
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。! p+ ?/ @: j0 [5 c+ u3 N
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Spray plants to prevent and control the 7 {2 n0 e' u+ E' B7 u 2 H0 n! E. W) V4 n6 I, Htvb now,tvbnow,bttvbspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try ( B. T4 G3 H! y& m! Y3 X: T1 y6 Q
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GreenCure. * ^+ e' R& S# w- o6 I: y/ ?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。4 K/ Y! q0 s( r E" J% |
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Late Blight on Tomato Plants , u5 h4 {+ a. I% M! i 6 E: g- v" {6 O2 y& N5.39.217.77:8898Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb( F% q: }0 b" e! h7 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。9 p4 D! o# Y1 U3 d/ \ d* X0 O plants in a garden. Once a tomato plant & P) E9 d! x5 N; H7 I' u$ ?: K
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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 T$ @1 d3 u% R* n6 j. ~5 f
5 H1 A; I0 c" g; }% c* F* B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 blight ! h3 R1 y\" U\" v6 D! U9 R, V5.39.217.77:88986 `% ?\" A: w9 Q4 c\" h4 e can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb+ R/ U5 @! R9 N4 _; Q# r5 o" d- j9 `
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Septoria leaf spot infections will also help prevent late blight infections.
