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[生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants

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( d$ V( S8 e4 B9 R9 x

7 I* x' C8 D/ `( y9 |$ a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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7 R2 @( i7 k. _1 {% D公仔箱論壇How to identify Early Blight" [# @2 `- h5 M3 L" \( Q

; O' a$ ~7 h' ]/ w% c- utvb now,tvbnow,bttvbSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to
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4 P/ a( Y8 p6 ]! {. J5.39.217.77newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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0 c* O* r. r4 i2 R( f/ Y% jin color and form concentric rings, or a 公仔箱論壇7 r% A; }/ f/ f- Q0 P+ k% n  O

\" a\" E% v9 n9 v& o- L\" rbullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow,
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leaves may fall off. Extensive loss
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- i+ D7 ?6 l" ~1 J8 r+ eof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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3 A+ p2 H- y! P/ k7 ^- q7 ]6 QTVBNOW 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 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。& K2 C  r1 K# V  o. B5 z' ~8 s/ K" j

! `: [. k: y8 f' X$ O# G公仔箱論壇Symptoms of Septoria leaf spot also start 公仔箱論壇/ S5 ^+ G8 V1 S6 w9 F, a

* V( K4 m; T: `7 `. l5.39.217.77on 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。0 q# V; D' Y2 T; S9 [% V

1 C# t, b* c2 y* x+ Ushape 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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1 C: b8 X" H, o7 iSmall dark spots, the fruiting bodies of the fungus1 H! J: `8 D( W# i
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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 5.39.217.77! Y# w4 l2 }; }/ P+ |' w* n. t

, a# w3 c7 F4 \\" R% m5 I! Kinfection of fruit
is rare.
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) f! h1 _9 v5 M* C3 D; [& R5.39.217.77How to Prevent and Control Early Blight and
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# _  ]3 E- o) B9 BSeptoria Leaf Spot

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6 W' q% I. `. [) B8 Atvb now,tvbnow,bttvbFollow 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.公仔箱論壇1 }( V/ h( G1 I( t$ `6 O

: P3 _# t- [; \7 ~5 G4 dWeed your garden. Some weeds,
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. V+ v2 _+ r+ t( I6 S: |2 Ftvb now,tvbnow,bttvblike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb% l- _9 I3 x; @7 m
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Rotate crop locations. Don’t tvb now,tvbnow,bttvb4 v1 d/ U2 C# L4 S8 g# N

3 P2 _) u4 S( D% qplant 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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' |* k9 N6 @! N; h$ _# R( O: ~! qTVBNOW 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。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./ t% b: o; s* q! l( e
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb5 o) J( g, v1 W7 N" u% R3 z& m

# R2 T! y0 i& D; H9 z6 K1 r- ^tvb now,tvbnow,bttvbfungus from the soil to your 5.39.217.77/ I& u; a! T' G1 w1 D

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Stake or cage plants to keep them 公仔箱論壇7 c1 G) X4 P# Z! i$ R
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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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! g& u8 H* d0 H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 5.39.217.77# r  r* u& @( P
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space above the soil without any leaves. Do not use tvb now,tvbnow,bttvb& z0 @/ y\" c. B. ]2 n0 O
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overhead watering
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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) J8 Q4 c+ [2 ?# t7 G4 f
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 tvb now,tvbnow,bttvb, `4 t0 b7 Q& H* b% j. l% W

- X8 q7 L  ?9 t* h' X) _  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。wet. Keep your plants happy and healthy. Weak and stressed ! _\" z6 l\" x' z' T  f

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are more susceptible to disease.2 F$ k- }8 @) T
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Remove and destroy or throw away diseased leaves, both off the
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plant 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公仔箱論壇2 l+ ]+ ?\" e3 c3 B
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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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) ?. N; w& G. Ctvb now,tvbnow,bttvbto remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the $ l3 y5 T: H; @: c) s# }0 P1 F\" F) M
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spread of Early blight and Septoria leaf spot.
Commercial fungicides are available. For organic gardens, try
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0 ~/ D* U5 m9 F- ?GreenCure.
' T( ~% Z7 T# n. B+ F4 H公仔箱論壇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。# b0 v+ k) y: g8 d' b
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Late 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 公仔箱論壇7 M& D( L) Q1 j! C, V7 _4 r
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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。/ }* ]  J( V% v% v

1 W- t% c+ B3 n5.39.217.77is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.770 H3 R3 @0 ~* L; o0 h

- a" ]0 G5 }6 B0 q公仔箱論壇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 blight7 _, |& y5 p% V; A( ?2 R
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb  g! N( F/ {7 P  M

0 r+ o$ o. q( y0 S1 s" Y公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections.
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