Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but ; v2 e# w3 K. Q( P% ]9 D
$ d7 |* a. V- L( Ycan 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 Blight5.39.217.76# b! t- Z/ D) p8 v' \$ T" J& {( m
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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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P" X, s! Y6 j4 s9 {- w* qnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 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。" u0 d& T/ U- Q! p, G
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in color and form concentric rings, or a 公仔箱論壇 A8 Z7 t5 g7 e( i! h% R- W/ i: ~& _
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 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。: ~+ v: @' ^8 }8 x* W0 b& o* ~5 T
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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.tvb now,tvbnow,bttvb, b, W' P: f7 E
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How to identify Septoria Leaf Spot公仔箱論壇" |. _: G$ ^8 C Y& U) R- T9 h
! k3 V4 M* U7 q; z+ |* V 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。Symptoms of Septoria leaf spot also start
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$ l5 u/ N# E0 Q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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N2 F' I _1 j4 lshape 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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" C. q0 o3 W9 I* @" x, f# eSmall 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。8 B9 K2 y- C$ e% y' f\" x) O
0 ? J3 I6 P1 }: ATVBNOW 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
0 G( }' x# P$ B" a" E7 C, 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。6 ~# Z0 e% u6 ^" D( W
and dead. Stems can also become infected but ' x8 ?6 O) J4 e' t9 }. y
+ R/ x; k; K7 w& k5.39.217.76infection of fruit is rare.5.39.217.76. `1 o$ r, A: D1 [5 q
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How to Prevent and Control Early Blight and
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Septoria Leaf Spot
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% h( ]7 G2 o9 _- o5.39.217.76Follow 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* T9 X9 d1 x0 s) ~0 I2 L, `: H
8 r0 o- A4 U) T# @- ?# ^Weed your garden. Some weeds,
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: b+ u" L r6 W7 W9 L1 Dtvb now,tvbnow,bttvblike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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: y+ S- G/ _% ~- ?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。Rotate crop locations. Don’t 公仔箱論壇( b( U$ z) b2 S: i+ k4 |8 d
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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 公仔箱論壇( e/ f9 @3 g# g
2 P& |: ~% l0 L( {% D! c9 {% Jtvb now,tvbnow,bttvbwhere tomatoes were grown.
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2 g; \) w0 U, f! w 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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
# J! R& n; G# |" ?9 j% S* U4 atvb now,tvbnow,bttvbCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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fungus from the soil to your
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plants.5.39.217.760 b0 L- T' d# K3 s# e. p- z
) ~0 |5 Z3 Z% `+ Jtvb now,tvbnow,bttvbStake or cage plants to keep them 公仔箱論壇: S; ?- } J7 e2 F. y
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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 / e( W. g7 l" G5 X
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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 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 w+ q: o0 u8 g5 |
4 U7 y, u( P1 ]/ ]3 K1 mtvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use
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, s) I) T p+ R6 ]/ I% a5.39.217.76overhead watering. tvb now,tvbnow,bttvb5 n' C. d d; @) [6 a6 B
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
; A7 B$ d5 u) M# |: pConsider 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
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! S' E) u0 G( g! Z+ nwet. Keep your plants happy and healthy. Weak and stressed 3 ?3 }6 r r2 O1 ]4 u9 E
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plants are more susceptible to disease.
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1 |, R9 P, K) p7 gRemove and destroy or throw away diseased leaves, both off the
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0 D3 Q. }6 ~; ]5 z/ K公仔箱論壇plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ) @; q3 Y; A k
) k8 L. V' h# w/ }/ M, c公仔箱論壇enough. If a plant is heavily infected# X# v% n# @4 p/ ~( W
/ l4 V) T/ v: ^, q% P公仔箱論壇, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 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。/ D3 t2 J& r+ k; @: B Q! Q
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to remove diseased leaves should be disinfected before being used on a different plant.
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- m$ y5 Y2 p+ n3 n+ d& F" k公仔箱論壇Spray 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 5.39.217.76& z6 {, M# K1 g5 i- f
_# f: k+ t# ^2 S0 Xtvb now,tvbnow,bttvbGreenCure.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。) n# U, m: p- @
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Late Blight on Tomato Plants
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. j3 X& A$ A9 M. r. k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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plants in a garden. Once a tomato plant
2 Z9 d# @" T, r4 l i. uTVBNOW 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。7 S3 D( |: P3 v3 ~$ {3 x
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, . q* ?: v) O4 [* N. [5 x
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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 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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$ n7 A' r- U! z8 `5.39.217.76Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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