Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but ( C# @0 L% \: j' b9 k
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.2 x4 T/ X. x8 } d r! b- |
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0 p6 n0 |& J' M7 V/ ktvb now,tvbnow,bttvbHow to identify Early Blightwww2.tvboxnow.com6 g% s0 _: a1 V+ f ~% o3 g
, ^5 _5 v; _% `& T2 V公仔箱論壇Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to
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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) N; c) r3 k: S5 e
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in color and form concentric rings, or a tvb now,tvbnow,bttvb7 m2 p\" j5 ^) H
, F' N7 c8 y3 g. {bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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: `' n, s$ g: ?8 O1 v公仔箱論壇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.tvb now,tvbnow,bttvb' Q; \0 R: L2 X6 A2 }6 y3 X* g
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, W% G1 U' g. ~8 M( Owww2.tvboxnow.comHow to identify Septoria Leaf Spot
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Symptoms of Septoria leaf spot also start
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: P* K& L2 Y& Y! j, o3 [' r公仔箱論壇on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change
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" C% u- H7 A, [: `4 a! s! Jtvb now,tvbnow,bttvbshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 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。' d( i# T0 i+ J" e1 V9 s, Q5 J
: \' B' j1 x- y3 j# hSmall dark spots, the fruiting bodies of the fungus
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0 b: h) ~ p# 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。, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry ' S+ l: W# m7 {* X5 M
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and dead. Stems can also become infected but tvb now,tvbnow,bttvb, e w3 A1 V$ t- L
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infection of fruit is rare.www2.tvboxnow.com& c. S: g7 K) U! [2 x1 x
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: y# G) e! q1 G9 A# H0 M t8 NTVBNOW 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 Prevent and Control Early Blight and
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& w& O: I4 e# S4 l3 ]# `5 ~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。Septoria Leaf Spot5 k( _* W' U1 P6 Z
J- v' V L0 h1 ~, t M sFollow the 12 easy steps below to enjoy a
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2 Y9 l\" z; q$ z/ ?, I+ slong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.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。3 Z0 C5 Y+ E z. U( Q m* |
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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 1 I; _. c! T r# F: O+ y' _
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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
" G: ~4 h# w% j- s7 }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 i; B/ x2 T# B, @2 {8 I% E) k公仔箱論壇where tomatoes were grown.' P3 _7 D& y) N
' ^ F! b8 J) Z% a- E公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb' y0 z; ?! H4 D. H7 }
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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' W$ f7 T0 }+ [1 d, iwww2.tvboxnow.comfungus from the soil to your 公仔箱論壇# ?5 S7 U( q6 Z9 J
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plants.
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( _) m. f+ G4 S* N; E# qtvb now,tvbnow,bttvbStake or cage plants to keep them tvb now,tvbnow,bttvb4 e$ Y& V; H( [; r
( a) n2 h' _- u) F' L/ mwww2.tvboxnow.comoff 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 # r1 v; K8 m. y$ k
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space above the soil without any leaves. Do not use
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8 H9 c) c2 z2 Y3 d5 F: Eoverhead watering.
8 W* s2 Q0 e* U* f$ E- ~Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
& t0 ]4 [& j- ?) s3 w+ [( e' AConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 公仔箱論壇# B3 b5 w' ~2 l- @. m; D
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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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9 w9 Y: |+ {' ^; g- \( twet. Keep your plants happy and healthy. Weak and stressed ' q% C! T5 p3 b! I0 I
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plants are more susceptible to disease.& M; I! B* B7 f* m& }) b& s. [3 y5 Y
" s+ L K7 h) |tvb now,tvbnow,bttvbRemove and destroy or throw away diseased leaves, both off the
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$ q9 C# |! z( Jplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ' \! l0 g/ q' T% G$ h H& Z
; K2 e) x3 x: n2 }+ A7 Q9 menough. 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 2 B3 V4 y* l1 u6 T8 i
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% \7 k- {; [; W4 M/ D1 m$ j$ n0 e
to remove diseased leaves should be disinfected before being used on a different plant.9 l- O! A8 c+ u) `5 u$ A3 Z% H
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Spray plants to prevent and control the
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7 r0 A9 [! @* ]9 j& a; T9 G' G, l0 i0 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。spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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GreenCure.: d! E% J, E* n$ ^ {7 f: T
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) H) l+ M: B* \- c) a( cTVBNOW 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 Plants
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' j% H- l) E4 M2 ?Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
0 u/ E9 _7 N/ f- P$ F' R8 J; ZTVBNOW 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。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" n; t1 F6 `8 x3 ^
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。. a, v& O( H% S9 \, h
+ \6 t$ w+ H, t) D3 `6 C% u3 Ftvb now,tvbnow,bttvbis 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 blighttvb now,tvbnow,bttvb @- ]+ C# t* z! j3 T
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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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, C' `& L, }5 |, V. \Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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