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.
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How to identify Early Blight
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& X# R3 m. ], \2 |tvboxnow.comSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 4 ?' |3 K* A* R, ?- h7 f1 n
' V! y: l+ O5 m8 x% C公仔箱論壇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。6 }2 Q( e$ G$ l/ Z
o2 M- o# V* _+ ubullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 4 z4 x% I1 Q# ]7 Q: P
+ K# Y" C. X+ o* W/ `3 v7 k公仔箱論壇leaves may fall off. Extensive loss 公仔箱論壇" D0 [0 V/ `: n
8 I, B' x, }( v. gof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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How to identify Septoria Leaf SpotTVBNOW 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。( _ |% W6 y9 s0 z E
/ X: P8 Q3 o }8 I; B; M. htvboxnow.comSymptoms of Septoria leaf spot also start 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。& Q3 x% a" e- Z& I$ O9 O
$ C# o" L# J) O7 ^) t* e# A- h9 lon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 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。# U+ _3 B/ M0 _; z
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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.
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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。# h2 U% i! |. r+ z
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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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. P. T: H/ B, G- {+ H- A4 m8 h; 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。and dead. Stems can also become infected but ' c: V. g% u6 X7 P- o+ X
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infection of fruit is rare.
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How to Prevent and Control Early Blight and
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, f' ?( ^6 S6 I) a0 ~tvb now,tvbnow,bttvbSeptoria Leaf Spot
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; L6 H9 X1 o0 Y/ |& K1 a, ntvb now,tvbnow,bttvbFollow the 12 easy steps below to enjoy a
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9 W3 M- h0 D) {, h# q/ zlong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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: r6 H% [* Z3 ?7 N; k Ttvboxnow.comWeed your garden. Some weeds, 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 ~8 ~6 W9 ]' B5 ^; [8 H% [/ z$ Y
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。! e( Q" j5 P6 M( B# E
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 tvboxnow.com' F( k( l7 R3 q* R# F) O
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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 ) z8 g# f3 }3 d9 L+ j2 V
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where tomatoes were grown.0 E' x& [ f. g+ G
/ ?1 @0 N& z, u/ p8 |: |0 {Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.7 D) n a6 J" {2 G. r
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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- l1 K! T9 P( J8 `9 |fungus from the soil to your * d& H! F: Q' Y
/ X0 Q8 {! y, }6 ?tvb now,tvbnow,bttvbplants.tvb now,tvbnow,bttvb. N8 N$ J8 j/ I, I+ {) s( @% M6 P
3 b$ y7 D2 O- j d5 Stvb now,tvbnow,bttvbStake or cage plants to keep them
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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 公仔箱論壇& N, K3 I2 z* j& E" A6 p
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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
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space above the soil without any leaves. Do not use
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+ ~( k; s. C/ n) D5 R w+ Toverhead watering. # j" y# {8 y. y) L. u5 b4 k
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
- f: A5 ?& B1 oConsider 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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+ f9 q9 `7 a' M9 nfungus 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
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plants are more susceptible to disease.
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Remove and destroy or throw away diseased leaves, both off the tvboxnow.com2 [: I' w2 R- S5 r. x
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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 infected4 I* Z9 A' h& T! O; O& F7 Z
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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
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& W, y ?" C. `9 @tvboxnow.comto remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the 3 X. l' x. S' @. V o# Q2 A7 K
! h# J\" J7 }' s# ftvboxnow.comspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try tvb now,tvbnow,bttvb' q) ^ W; `' Y0 A0 i5 n; K
' u+ R7 u' Y6 N+ I公仔箱論壇GreenCure.公仔箱論壇! Z7 r7 e0 _' s2 `. @; z
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Late Blight on Tomato Plants* i+ T; k! Z; [0 n
, G8 {7 ~7 _, w! _7 B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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' K# o; h$ x9 [. A0 I( M公仔箱論壇plants in a garden. Once a tomato 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& I p$ Y" Y. p2 ^' f4 x
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb' ]; ]5 Y+ c5 p
8 F* r) Q7 r5 I1 K1 g* ?6 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。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
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8 Y, E6 V, }0 ]4 W4 ~Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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