Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but " G; a& `* o; K0 k8 s
" Y {9 j0 t8 |) B公仔箱論壇can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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, P3 D+ b; M2 N1 Q& V* R5.39.217.77How to identify Early Blight
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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 5.39.217.77+ X3 r) g6 o+ s& p' L, _
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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 1 ?; N; D# W& v
/ [! K0 f! {% E s6 R$ ain color and form concentric rings, or a
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: q. E# Y0 y; W6 a% f3 j( N+ sTVBNOW 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。- C$ g' u" {& L
" I r0 w' s, G, A- N5.39.217.77leaves may fall off. Extensive loss 2 V2 \4 g$ V0 w u8 v7 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。) v: i6 G& B, J8 p m
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.3 w) X+ f. B1 d3 n% S. Z o1 V
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z( Q% [# u" g1 h' F7 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。How to identify Septoria Leaf Spot8 t" S% {4 f6 c" T0 H
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Symptoms of Septoria leaf spot also start 5.39.217.77$ {" P5 [/ j+ |+ U
S) f( R# 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。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) c# d- z* ~! S+ S
6 m5 v/ ` D* m" Q# j& Ytvb now,tvbnow,bttvbshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 8 ~: o# P; }9 q( m
- f* L4 G6 |4 H$ S公仔箱論壇Small dark spots, the fruiting bodies of the fungus
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry
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and dead. Stems can also become infected but
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- N$ \. d0 ~: [& l1 s# itvb now,tvbnow,bttvbinfection of fruit is rare.
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How to Prevent and Control Early Blight and 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 y( I5 q1 e9 n
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Septoria Leaf Spot
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, @- Z z, ^& [# e% L: L8 Rtvb now,tvbnow,bttvbFollow the 12 easy steps below to enjoy a # T5 F2 u, b2 L1 E
Z; T( V! n( A: l5 U公仔箱論壇long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.' U7 ~' X7 z/ A
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Weed your garden. Some weeds, tvb now,tvbnow,bttvb; e7 A3 w H, c, u# _6 [
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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8 z& z1 q4 U& p2 x2 _7 w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。5 ]* @' O* _$ f) l# ^( g8 H
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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 9 O9 y P, i) E
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where tomatoes were grown.
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* S7 K8 S3 W+ X/ \% R3 n* `4 L2 XGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
6 l3 d3 k+ P5 a+ |6 d3 z, Ztvb now,tvbnow,bttvbCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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fungus from the soil to your
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# Z! f! @3 q# c# J' w: O4 R公仔箱論壇plants.tvb now,tvbnow,bttvb/ ?9 N" p0 @/ B( ?3 |' h0 k
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Stake or cage plants to keep them
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" M' f4 r5 V$ i/ ?- Yoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and , i- d t+ B) t L! T
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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 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! n( P% O3 X8 Z
$ B# f8 U9 H) X0 k6 ospace above the soil without any leaves. Do not use
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' f. f! F) O; ~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。overhead watering. 5.39.217.777 E/ C# @" y% m# F. p; q
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. tvb now,tvbnow,bttvb# b7 o1 P `* ~ p0 D: V
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
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fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are
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wet. Keep your plants happy and healthy. Weak and stressed 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。' d$ j& C2 \# r1 w+ d0 Q
6 o\" F. u( o; O: }! M6 G/ f\" U5 @plants are more susceptible to disease.
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* A, W3 u$ a3 k& t& ]$ Ctvb now,tvbnow,bttvbRemove and destroy or throw away diseased leaves, both off the % K! M w4 Q1 {; m
6 e2 x7 H; g! E# bplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early tvb now,tvbnow,bttvb6 [3 k9 }3 g* a; Z
tvb now,tvbnow,bttvb$ c( r$ B! J$ M. e2 P. h" G
enough. If a plant is heavily infected
9 f$ T2 R8 j4 A5.39.217.77* V; x9 X5 v0 H9 G$ v' e: k& ^; a
, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used
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$ u, s- j( |( N0 J2 ]2 s- Atvb now,tvbnow,bttvbto remove diseased leaves should be disinfected before being used on a different plant.' q% K/ u6 U: r; Q. t. P
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。3 {% o) ]. [9 H& P
Spray plants to prevent and control the + T i1 n K* _$ c: {$ ^
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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4 n7 B6 ?: h+ C2 z7 l0 ^公仔箱論壇GreenCure.
1 d6 E# v/ I% |+ K9 \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。9 Q6 n" F6 |5 U
. o( H% m D+ n+ M Dtvb now,tvbnow,bttvbLate Blight on Tomato Plants
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
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& ?) D) y" p0 d公仔箱論壇plants in a garden. Once a tomato plant
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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, G6 w w6 U1 B# _tvb now,tvbnow,bttvbwater-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! j ~# ?' g0 y0 u0 @# S
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and * g/ v2 H1 A- R/ ] ]
& B4 B8 C) n# f' }- o: W+ u3 m5.39.217.77Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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