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.1 N9 D8 Q# g# \4 z1 o" T4 }6 M7 j) a
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How to identify Early Blight. q) w) v; M; H
3 V! v3 l/ J' d, P/ v; ^Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to tvb now,tvbnow,bttvb4 O! @: Z ~1 D5 K( |
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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 tvb now,tvbnow,bttvb" p# O0 y5 p8 q; |) _$ g! k
K* m f7 D9 U% L0 k dTVBNOW 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。in color and form concentric rings, or a tvboxnow.com- \\" w# `3 M( T5 n; O6 d6 X0 O0 I
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 1 ?# j" W( b6 O1 _ c
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leaves may fall off. Extensive loss 公仔箱論壇4 n, G; W& m4 _% i* J* z# g; V7 w
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.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。1 Y7 j) z- n8 y c9 f# [2 v7 G
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How to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start
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7 @$ L1 ]/ C# H- T7 `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 & W3 }5 g+ f9 K6 [3 M1 g& e9 M6 N
2 G; `* H& h' b B* G) TTVBNOW 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。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,bttvb/ Q" R9 j7 D: L/ c
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Small dark spots, the fruiting bodies of the fungus
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8 `. X# K$ i! G( N9 ]: O3 q* `, 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 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 Q0 i' C2 ]' F) R, n
% Q( w! ~! f( Hinfection of fruit is rare.tvboxnow.com' O! R; q! j- f, J! x" ^# T
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7 J* h; C: L* O' h) P' k: u" sHow to Prevent and Control Early Blight and
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6 R/ h, R\" B, v( \9 }( r公仔箱論壇Septoria Leaf Spot
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. }! {7 X, |1 [9 `Follow the 12 easy steps below to enjoy a
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.tvboxnow.com! j/ h+ W) f* F" _/ a
$ J+ P& O7 |: @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。Weed your garden. Some weeds,
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& L) W. [" \- R8 `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6 [" U) Q8 T4 S1 V6 W
% k! A, z7 H. R( D; v! ?plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas * l4 U+ |) S( ^. ~* n
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where tomatoes were grown.0 C: E. _+ V$ F+ Y' s* d$ B4 _: m
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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。, B( J5 H& v X2 G( j2 e
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvboxnow.com$ Y0 E# p+ _9 o( Y/ ~7 K; U0 h
( ]9 m5 i1 m) S i1 d公仔箱論壇fungus from the soil to your
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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。' C5 e- V( Z0 N. O7 S
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Stake or cage plants to keep them
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% P" H7 q$ f; F$ y6 U2 }8 [# Htvb now,tvbnow,bttvboff 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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8 a) j% ]) Z+ S9 ?/ u" @: P 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。cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of # B3 P. K) E' D. U }
( e$ G+ t( T* _$ H$ D% U& I, dspace above the soil without any leaves. Do not use 公仔箱論壇7 i/ ]: H/ p; L6 ^$ b$ [ y0 w: G
5 n( @+ y: L- A% d, f6 joverhead watering. , }: U1 g C6 i6 Q2 s0 z& c
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
, A7 S* H4 f9 S( q; TTVBNOW 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。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 ; E9 [) I+ T1 k% w- H/ B& r1 f
0 [0 u( J+ Q9 Jplants are more susceptible to disease.
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0 ?7 o0 O8 e, A$ F2 b* ]tvb now,tvbnow,bttvbRemove and destroy or throw away diseased leaves, both off the tvboxnow.com' d9 F* }3 ]; z
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early l5 F9 J8 i' u( W3 p$ p" D' O* r
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enough. If a plant is heavily infected
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\" e$ u( P\" @# f# ^# iTVBNOW 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。, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 公仔箱論壇, ^( v# k! T! g0 {5 S* h
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to 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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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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! P9 n) k- u3 V2 }/ m! Wtvboxnow.comGreenCure.
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* G) F( n" T+ S9 V2 y* p1 kLate Blight on Tomato Plants公仔箱論壇; S2 ?2 o* M, I, v
4 C7 z8 f. S' A3 ?( K; i( T公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
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) R* K+ h* H: w3 jplants 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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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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) h: v7 n! b$ _' N- [) |4 }0 Ftvboxnow.com can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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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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