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* ^, F, C# j0 H j
3 S; {6 l$ t. ]$ M+ b0 }9 Wcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb# k) t( E0 w. e4 \- ?1 S; v# q
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" g) h7 O% Q6 r9 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。How to identify Early Blight5.39.217.77# ^4 `. w0 ~9 J: y( S
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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 tvb now,tvbnow,bttvb, v# c4 K' X3 t) ]+ c# g2 w: Q
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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 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 h- f+ D' z3 \+ \; t
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in color and form concentric rings, or 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。7 ~6 C5 W* L5 @5 e) h) D5 i* A! r
0 T9 _9 z; M6 h3 }. q5.39.217.77bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ' z9 u( R& [- e1 j6 N* z
* |' ~ y- u3 O% n2 J P' q; u. ^0 N5.39.217.77leaves may fall off. Extensive loss
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.8 R6 ^0 G) a C+ o, n1 C6 Y& A
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0 r! b8 _. J, P公仔箱論壇How to identify Septoria Leaf Spot+ M4 R7 m4 _+ q' {( D
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Symptoms of Septoria leaf spot also start
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) W( |3 W+ Z6 B8 [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* b8 u* O" ~0 p5 g7 c
' r! |5 U1 z5 ntvb 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.
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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。/ y+ Z* _! E- S
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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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5 k6 m: J2 k, j7 X, ^0 M5 j0 kand dead. Stems can also become infected but 2 q4 A& Y) ~$ H; M
0 q% K3 f+ K$ F& N, Dtvb now,tvbnow,bttvbinfection of fruit is rare.公仔箱論壇8 @ U6 U- o; @% q3 ]( D
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2 P5 g' i3 @2 L( _1 M6 l1 SHow to Prevent and Control Early Blight and ; v# B9 C, f0 q5 S7 A% M9 M8 l
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Septoria Leaf Spot
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7 b0 e8 F6 F7 k# u6 j3 K5 y, HFollow the 12 easy steps below to enjoy a
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: f( y: m# d/ {$ |( }0 K. btvb now,tvbnow,bttvblong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.5.39.217.77& H, U* {+ X6 ^) m* y4 S
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Weed your garden. Some weeds, - p# V4 Q7 l5 E a3 R
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.3 Z* [8 R& r! I9 O. g
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Rotate crop locations. Don’t
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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
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where tomatoes were grown.
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb* d5 l( Q$ p! k3 l* X7 [
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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2 ~2 J5 ^. U; h0 p* X- w( J% i0 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。fungus from the soil to your
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plants.
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1 T$ S1 m1 ^8 r4 N1 C4 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。Stake or cage plants to keep them 6 m7 L7 D1 L2 z
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ; j# w1 B- H8 P* T! G7 w1 F; c
0 O& G! I; B7 P公仔箱論壇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。: {; x( U+ D% h3 @) |
! Y6 y. Z0 L. }0 nspace above the soil without any leaves. Do not use 公仔箱論壇, }# i4 Y2 b7 u+ _+ V
# Y* {! A2 t0 z+ ]6 \! Y. N, [6 Xtvb now,tvbnow,bttvboverhead watering. & j2 M7 Z% ?7 m9 f+ {
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
0 R5 X) n/ N1 t' |( W0 ytvb now,tvbnow,bttvbConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow tvb now,tvbnow,bttvb6 n+ D q: ]5 H, s3 q# \, q
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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 5.39.217.77# Y) A4 q! H2 Z& d
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wet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.tvb now,tvbnow,bttvb' h# x+ b- D; d8 ] z# ?$ B4 S
4 Z* X- F7 v0 G1 _Remove and destroy or throw away diseased leaves, both off the
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early , d E, S! H# t0 g8 r
) a0 O4 F' |3 n5.39.217.77enough. If a plant is heavily infected
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, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used + X- \( Z7 _# r/ x5 V( B
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to remove diseased leaves should be disinfected before being used on a different plant.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。+ S' _6 `5 }8 A2 ~
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Spray plants to prevent and control the
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. t( h\" A% E/ ]' z# g# H& {spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try ! ?1 X- r4 F& t$ a" ]
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GreenCure.
( @9 C( p) u! ]. ~, v! c/ mTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。$ W W4 Z: `* U2 q5 m; i$ u) o/ e
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Late Blight on Tomato Plants ~/ C- a: _% V+ s
3 Z; T/ n& W1 `+ Q# T$ P; Dtvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb, ~0 l! y' b7 K/ e, J8 R% c
9 V8 Y2 d5 Y. a4 z7 o5.39.217.77plants in a garden. Once a tomato plant ' {# c4 p! @1 j: }4 \
1 { c. g- Z4 x' ^5 j( ris infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 1 ^& }* x2 \5 O+ ~
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water-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blight
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# m# \6 L7 W/ w& r8 |# `TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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. H0 r) W% w- \) x5.39.217.77Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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