Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but tvb now,tvbnow,bttvb3 c4 \6 ]0 c! J: d* l' y
; N7 n/ L6 x/ V) }3 hcan 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 Blight5.39.217.77# m0 I6 h# Y1 D. ~6 G
$ u! U' b% P" P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 * X' `7 ]0 ?6 n% ^% z$ m
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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 公仔箱論壇, B$ O# B* }8 `' F
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in color and form concentric rings, or a tvb now,tvbnow,bttvb% G& J8 Q u% `1 w, ]
7 p& Q4 M+ ?/ {5.39.217.77bullseye 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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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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l8 O+ V# A4 H6 w, h8 `5.39.217.77How to identify Septoria Leaf Spot$ s; {" L) {& v6 V( n
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- X4 M$ Z* d2 d
Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb! B& l7 P( ]0 ~
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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 tvb now,tvbnow,bttvb5 g' z: \3 V4 g% \! N
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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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; i3 E0 E, V1 ?- U8 L( V4 FTVBNOW 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。Small dark spots, the fruiting bodies of the fungus公仔箱論壇; A' U; a- I) @1 [
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 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。5 B& E- h, m' u) \' V, A
1 {. X, w+ X" S0 D3 j) d8 x4 g, ~1 O5.39.217.77and dead. Stems can also become infected but tvb now,tvbnow,bttvb! z; ~% Z' y7 U2 |% P3 f, s
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infection of fruit is rare.5.39.217.77' ^# ?! J- f# R# z4 l
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8 U! t* K7 y! v* Jtvb now,tvbnow,bttvbHow to Prevent and Control Early Blight and
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Septoria Leaf Spot公仔箱論壇( O7 v* P) i5 H! D: b4 a8 t
0 v" O8 m9 {6 F2 s! ]tvb now,tvbnow,bttvbFollow the 12 easy steps below to enjoy a
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! G: s4 a; [' ^' h+ 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。long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.5.39.217.777 [# `; r% o* 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.5.39.217.77; u& I+ F+ `' X" J6 k2 Z, M
5 ?- N7 z; G" y: F2 v ?$ ORotate crop locations. Don’t
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, o; B% E; l) O$ v0 ~) `plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 公仔箱論壇- I: M' t- Z, |/ L4 C* M1 h
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where tomatoes were grown.公仔箱論壇1 |8 K: Y& u$ `+ j+ v0 j
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
. Y8 w+ r) ~" s a5 |% Y2 l$ X2 nCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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3 n7 ^7 t Z5 I6 J- R! yTVBNOW 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。fungus from the soil to your : V2 D; D: q" X& i+ \% a1 k
" B5 S7 v' x; A* `' A- Splants.
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: d8 ?: V9 l- B# L5 t" I# U7 V xStake 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
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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 tvb now,tvbnow,bttvb* [* x( v; _% l) [
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space above the soil without any leaves. Do not use g; r5 c4 k$ \1 P: t
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overhead watering. " o% N; L$ ^ P" X$ F
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
" g* A9 ~7 F) @2 s# o3 U" F, V3 E2 D( l1 dtvb now,tvbnow,bttvbConsider 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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: ]. b4 y- {% s; Q K% `6 rfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 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。5 {/ I. s$ o3 N( K9 f* S% x
: p u% ^5 l3 }" J5.39.217.77wet. Keep your plants happy and healthy. Weak and stressed
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% P7 f( c8 c, i' H Vplants are more susceptible to disease.: r9 k1 g2 a- G; S+ m7 Q$ @% d8 W/ o
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Remove and destroy or throw away diseased leaves, both off the : o) l& L3 B. I) B4 a
5 K F6 w# h, j9 U: l6 I\" Ltvb now,tvbnow,bttvbplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ; \$ q! l! W1 I7 ^# T
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 h4 S. t/ R- r' o* V8 e t; X0 ^- c" e
enough. If a plant is heavily infected
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5 T9 a\" I- j! [- ?5.39.217.77, 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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h# c' E" K( S' I6 c+ _to remove diseased leaves should be disinfected before being used on a different plant.
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, v% N; `# I: W6 |8 t* l. a' o) FTVBNOW 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。Spray plants to prevent and control the ; n3 o# E: q* Y) L) S
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try tvb now,tvbnow,bttvb/ z! f9 v( B+ r+ O
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GreenCure.5.39.217.77& S# m6 {- ]* e X2 V- _9 S+ B
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- C$ K S" J3 c% l. V8 z! m5.39.217.77Late Blight on Tomato Plants6 ^. r" s# o- }5 W; G7 ?6 t
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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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plants in a garden. Once a tomato plant
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; _- v7 K& h% Eis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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3 c; s4 ?+ O. f6 m6 X1 ]tvb now,tvbnow,bttvbwater-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 blightTVBNOW 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。\" N\" `( l$ k9 n: X( k
& P9 L% B3 e5 q g, V5.39.217.77 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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