Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb8 y. b+ O* c% @0 `( |
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How to identify Early Blight公仔箱論壇* ~ G) f; ]2 c4 F# b
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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 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。* ]) ~$ ?/ u7 A; {' \
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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
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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。. T! N7 _6 j3 ]# @# Y1 t. k# w0 K
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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。8 I- \/ D, m8 x1 o; J
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leaves 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.
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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。; \" e9 b) b |! H9 b4 r( P
How to identify Septoria Leaf Spot @. r' j) G. H0 v# F0 q2 b
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Symptoms of Septoria leaf spot also start
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on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 2 x9 R J J. o8 F# f
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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. tvb now,tvbnow,bttvb2 _+ G) @* J2 T1 }6 M
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Small dark spots, the fruiting bodies of the fungus% ~9 V7 l6 }! k* W9 A
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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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9 U: W* }0 L6 D; W) 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。infection of fruit is rare.7 B: w- S$ U9 l5 E& ?
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3 X( P7 M z+ f. V9 ~: ^How to Prevent and Control Early Blight and
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: P4 i2 _* B1 P: _/ \- K, k公仔箱論壇Septoria Leaf Spot
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, z' |7 Y# Y7 b$ KFollow the 12 easy steps below to enjoy a
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' P# p+ J- C& x$ ^: ^( |7 T. y- c( A5.39.217.77long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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# ?" {# r/ I+ G1 X: ^- Q* R9 v" k公仔箱論壇Weed your garden. Some weeds,
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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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Rotate crop locations. Don’t 公仔箱論壇7 s7 z1 s- X2 I- \& d& d
: e2 }/ ~. x- L T% 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。plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb M6 ?! _2 t4 k6 L
+ ~+ i* T o. L- {# Q公仔箱論壇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.5.39.217.775 w( `5 M7 }' I% ~1 y+ d
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 5.39.217.77- d+ m; f9 w. g3 f3 O0 |
. E" |! \2 U r/ stvb now,tvbnow,bttvbfungus from the soil to your
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n4 x/ W. _( n4 c! s( b" `Stake or cage plants to keep them 公仔箱論壇9 B7 L6 b9 B! E+ u/ Q8 t* ~
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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
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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 公仔箱論壇, T$ R7 @# u- y% A6 ^
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space above the soil without any leaves. Do not use tvb now,tvbnow,bttvb8 e. W0 o1 ?% ~, P5 [8 E
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Avoid 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( v. r% ]5 l( P+ h5 G* ?" f& N3 l
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 - B# {) `7 }* b
4 X: o: [! r. E" X. T; O, |5.39.217.77fungus 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。5 }' W) d' F: m) A
, p3 E, L! i( a8 Ntvb now,tvbnow,bttvbplants are more susceptible to disease.
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" \4 g: b; S4 `! Y4 zRemove and destroy or throw away diseased leaves, both off the 公仔箱論壇 h/ k0 {: b- C) G: J5 q
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early
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enough. 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 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。+ Z$ Z( a9 `* M8 U4 R
) h5 z9 B0 Y8 i2 Tto remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the
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2 ]0 G$ J; `\" W# _2 A& Htvb now,tvbnow,bttvbspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try tvb now,tvbnow,bttvb4 Q& ^0 Y3 l7 v( A
: q+ H" b2 M" V I" mGreenCure.公仔箱論壇! V/ M* u3 m/ C* v# `# {! n/ r
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Late Blight on Tomato Plants* h+ o4 q5 r/ F* n9 M
3 G. t% Z2 o$ M$ `3 a5.39.217.77Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
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+ q5 G& {$ c1 j+ Tis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb* M8 [: }2 J$ k# b6 s$ h
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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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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 4 t0 K C, h: M
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Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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