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標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁]

作者: 6t6t    時間: 2019-4-13 05:03 PM     標題: 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
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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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+ P9 i2 w# u8 F; u7 BHow to identify Early Blight7 G2 ^1 N, m, R$ G; O7 r

- R2 t: Q: m, B3 G& HTVBNOW 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。Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to $ A+ z) n" I! P! _! J
tvb now,tvbnow,bttvb( t1 C+ g2 N0 d' o3 q' B0 t" ]3 n  B& p
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 8 v5 r. H! W. _* i& Y8 Z) }

; U# y/ M2 e7 f2 o) f5.39.217.77:8898in color and form concentric rings, or a
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3 g/ W$ Q, [+ [! e5 N+ obullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow,
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5 h% K( n0 t* M; W3 n% V6 T7 C7 jTVBNOW 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。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.# i/ ^# w: i7 z+ ]

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/ U( N+ d& B* E% j6 L, cHow 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。$ i2 f4 c) y  p& R: l0 w: Z
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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 4 Z% F2 G* P  ], o5 V. z' r
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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 fungus公仔箱論壇- |/ W$ I( S- @$ `3 c7 y# n
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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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infection of fruit
is rare.
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8 E) m% ~/ [( F1 E, M# B% b; uHow to Prevent and Control Early Blight and 公仔箱論壇: a5 d6 T, R/ N1 `* B+ m& e
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Septoria Leaf Spot
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Follow the 12 easy steps below to enjoy a
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2 T9 w\" g8 ?* }! V# {! @公仔箱論壇long season
of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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4 `4 V$ _+ K1 m6 n8 X$ s公仔箱論壇Weed your garden. Some weeds, tvb now,tvbnow,bttvb. ^5 w9 M$ M. x) G: k

8 i" m9 C8 D, r公仔箱論壇like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.公仔箱論壇# G3 {  j# H$ F/ \; ~% r# G

" g7 w! t% E& e# `) m* s5.39.217.77:8898Rotate crop locations. Don’t / }8 Z4 [& e: u4 l$ I9 P

: L* z2 X* L" E! ]1 W% L. xtvb now,tvbnow,bttvbplant 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.
, j/ s# S; r( b8 A1 a8 J0 L7 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。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 公仔箱論壇& _, |( s' k& B2 v
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fungus from the soil to your
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3 m- h6 D# o  n6 H! a; M公仔箱論壇plants.
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Stake or cage plants to keep them tvb now,tvbnow,bttvb& Z6 G0 d! J$ O
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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 * ~$ A, H  O- [* w

2 q0 F* |% J: v3 U5 I2 Itvb now,tvbnow,bttvbcages. 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 $ {$ o  R$ u# @! p2 i' W

* R& }( T) n+ G+ G, x. P) T9 j. k9 }\" qtvb now,tvbnow,bttvboverhead watering
.
9 @# Z' q/ L( R1 Qtvb now,tvbnow,bttvbAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
( h, x) @# v$ J& gConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow ' @# d2 K" `+ a0 h1 ~
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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 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 z1 w5 I- u% [  y9 A5 l; l
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plants
are more susceptible to disease.
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  m% G# ^2 D0 Y7 x% cRemove and destroy or throw away diseased leaves, both off the 5.39.217.77:8898/ Y& J+ j: W, j, a8 C' }- A2 W

. _\" K( Z4 m\" j- w; PTVBNOW 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。plants
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( o8 O( S( j6 P( f4 {7 w6 D

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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   \; i# }5 i% @* a7 e4 e
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: M- _- _3 t% W- n: _
to remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇, ^- I6 N$ W- N

0 u6 n. k; q' L9 o( etvb now,tvbnow,bttvbSpray 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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: g2 g6 J7 [) }8 L9 l9 F4 z/ R7 k% TGreenCure.公仔箱論壇6 n; g% M/ e* T# a. n7 ^

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& E; A4 b% L! i0 x! I( V6 w3 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。Late Blight on Tomato PlantsTVBNOW 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。9 B0 w9 r: I; R3 V, n
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
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1 b; V! N0 r" `$ Q* hplants in a garden. Once a tomato plant
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: r  z8 ~# |) ]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。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 blight3 @4 G& V0 f- A( y3 |) y! C6 m
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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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% Y+ X2 }9 _8 F3 m0 N% ySeptoria leaf spot infections will also help prevent late blight infections.




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