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 5.39.217.77:88984 V' r% _+ q6 y
; `8 l' _- P' C) A- _8 @: Ncan start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 6 Z: x: A9 a- g2 C5.39.217.77:8898 7 \8 H1 o X! |7 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。 ( j9 x. X6 R `$ 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。How to identify Early Blighttvb now,tvbnow,bttvb8 x7 K$ _* Z1 j5 L; s d
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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 " u5 i& O' R6 P1 _- N! n/ q / y7 g% u% `. P& f5.39.217.77:8898newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown : q* y2 D5 r: m% gtvb now,tvbnow,bttvb . e. Y5 @( r2 h6 N w7 \公仔箱論壇in color and form concentric rings, or a : o4 L1 [0 `6 X5 \\" b# v7 Q - n8 G; v8 b9 H7 E5 k9 k5 v公仔箱論壇bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, $ N1 y* q6 f$ a& a9 W5 R
" j, z+ E7 ~! b- I2 l) }5.39.217.77:8898leaves may fall off. Extensive loss ! k; m- G7 ?7 |6 m2 qTVBNOW 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% {! ^* k: _) I% Z, s
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 4 H8 D. g4 o/ p) u7 P3 W7 Atvb now,tvbnow,bttvbtvb now,tvbnow,bttvb$ {6 T2 m: I- j( d$ V" E
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How to identify Septoria Leaf Spot 3 K- F) W; ?% N& |5 E7 l# v4 etvb now,tvbnow,bttvb / C+ E, N. C8 f$ RSymptoms of Septoria leaf spot also start b8 ^# P7 }- d; ?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 s0 Z7 \+ b, T2 o3 Q
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: C+ T2 }3 N f9 v+ J& q
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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. 5 r8 D6 N1 |7 X公仔箱論壇7 Y+ l6 D4 s6 x, n r! [
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 \2 y) F5 Y1 ]
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 `& ]; X% e& u1 q , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 3 A3 d. | L* `) e : p' N0 |9 a' m. X- _tvb now,tvbnow,bttvband dead. Stems can also become infected but 公仔箱論壇\" R' a; n& `$ k- x' P4 p4 H% |
2 V! h. n1 [4 K2 A5.39.217.77:8898Weed your garden. Some weeds, 8 X9 [7 T+ [: e9 I( ^( }公仔箱論壇3 ?' G7 J1 P! U$ _9 a. \
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. 2 g1 F$ k: X( h6 @: D! P公仔箱論壇 1 g$ [$ Z8 t4 gRotate crop locations. Don’t 公仔箱論壇' q# t9 d* K* S b) g: v, @& z
* H4 X3 Y+ c/ U; |( g! ?6 y* btvb now,tvbnow,bttvbplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas ( ?. Q, w& O! M0 F" z5 Z 7 J9 t4 c8 J1 x2 C; X1 o+ ]where tomatoes were grown.4 j2 ~# T6 f+ P
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.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。8 n y/ d0 @2 N. A$ }6 ^+ y8 u
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb6 J( K" @, V% K/ p. j
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fungus from the soil to your 4 Q- Z, |2 O* |8 E% I2 j& U, i/ Rtvb now,tvbnow,bttvb公仔箱論壇7 c' f4 l$ C# i
plants.9 h9 S6 _( l: r! ~2 z$ ?/ Q
7 K# c8 b/ D G1 [$ DStake or cage plants to keep them ' o2 D" C" s3 g5.39.217.77:88985.39.217.77:88981 w/ z. c# a( k: Q) \
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and # o" | r \1 Z5.39.217.77:8898 0 j3 Z9 X- I0 b. x3 U- S, z1 b9 P5.39.217.77:8898cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 1 [' N. ]9 u/ G5 c, ~+ 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。5.39.217.77:8898; ? `0 S8 y: h& T( X. I" f0 m
space above the soil without any leaves. Do not use 8 |& _* U5 b {9 A0 z\" }tvb now,tvbnow,bttvb ! M+ L0 z! p. W) r3 y* P1 j公仔箱論壇overhead watering. 6 [+ t. [% ?. Wtvb 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。2 y1 H z1 X' V6 ]9 Z
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) h% V. ?) L* r公仔箱論壇 & Q+ l+ y i( _" F) D0 @. k5.39.217.77:8898fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 5.39.217.77:8898' i o1 v5 `8 K3 O
; l0 e C3 ~9 S/ L* ?9 Gplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early # l0 L0 A8 j! R公仔箱論壇公仔箱論壇2 j+ E+ ~4 Q! Z
enough. If a plant is heavily infected公仔箱論壇4 R, N/ k# q, L6 g6 p
+ [+ V. Y8 q d( G , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used tvb now,tvbnow,bttvb, W. f5 X! e- j4 d3 V8 H) d% X
# G- w- ~7 }6 ^0 {7 Qtvb now,tvbnow,bttvbto remove diseased leaves should be disinfected before being used on a different plant. & l7 g9 u' ]+ L0 d8 ]7 Q% 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。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。& n4 a$ k( H# ~3 y1 O$ X# X
Spray plants to prevent and control the tvb now,tvbnow,bttvb2 }\" h\" B& \( V j
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 y% I$ O! b# ]3 \* {1 P1 N
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try # k, N# @ T* i6 k: s$ ~( {# e7 S9 i
GreenCure. 8 O- K1 i4 |8 u( X% Htvb now,tvbnow,bttvb / S# B- B& V& m' `, j公仔箱論壇tvb now,tvbnow,bttvb& f2 m' r# }0 \. c* ]$ E# ?% ^
Late Blight on Tomato Plants5.39.217.77:8898& r y `5 p/ z
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato , x% v; f% h4 B+ E( _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。 / ?& Q$ ?" @7 E; g1 Gplants in a garden. Once a tomato plant , Z; D* W3 I$ {- c' ]
" m4 c& f- A; J; ZTVBNOW 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, 7 f: B0 Q- x: f! ]* {' zTVBNOW 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$ X4 M* c3 h# e9 J; e# q% A' v( Z
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 blight1 @\" h2 R( F, W8 j8 S
公仔箱論壇. W+ ]3 Q+ e5 h8 e: V9 r+ _ can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and " r' v( s, a: U7 }; Etvb now,tvbnow,bttvb U- t G& e! X" O2 tSeptoria leaf spot infections will also help prevent late blight infections.
