Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 公仔箱論壇1 m+ k* C! @( @/ \ X
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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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4 t$ c: F- s: P% a& b8 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 Early Blight
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5 w0 o; j4 u# n. H+ O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 & b/ w* F$ q) _
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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,bttvb1 T/ ]* A" M5 ~9 L
( o4 h. b, M8 Wtvb now,tvbnow,bttvbin color and form concentric rings, or a
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* f; l B% `; c6 ~/ G* K\" ?公仔箱論壇bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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: F' x: d. q4 E# g+ n, 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。leaves may fall off. Extensive loss
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' M$ `3 | N, c# n! S公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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How to identify Septoria Leaf Spot公仔箱論壇1 W7 h& }4 X7 P
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Symptoms of Septoria leaf spot also start 公仔箱論壇, O' Q# o$ ~/ ] K, _; F4 e
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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 5.39.217.766 K" q! K0 v! |' \
公仔箱論壇( s# R) o: p5 ~3 D' W9 @" B
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. tvb now,tvbnow,bttvb* y& s& x1 l0 B
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Small dark spots, the fruiting bodies of the fungus公仔箱論壇) c/ r\" s2 ^* z6 @
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 公仔箱論壇/ D1 `$ m& `9 w/ O2 b* T
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and dead. Stems can also become infected but
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infection of fruit is rare.5.39.217.76$ N# R/ ~* q: D- W3 O7 w9 C
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How to Prevent and Control Early Blight and
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: i* W+ T/ ]+ |# X0 fSeptoria Leaf Spot
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" E7 k# C @) t4 {8 p- x+ w5.39.217.76Follow 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.% k8 w6 g+ s3 v. p' Z; [/ j: k
2 l. m8 I, E' `; o8 ^' Y6 c& O公仔箱論壇Weed your garden. Some weeds, 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。" P/ n. T! k( F' L8 [
7 |, S) I$ f/ m公仔箱論壇like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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4 S8 G9 n# d& a9 {- HRotate crop locations. Don’t
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1 u& ?0 Y* } ]: kplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas / s$ w( Z, e+ y
0 p S! t% F2 v3 r' h0 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。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.
, V/ m$ \2 X0 gCover 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 - Y: _1 _2 h- n6 \. a4 l
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plants.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。% k5 R3 t9 t0 ]& q% p8 Z+ V. X1 g( e
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Stake or cage plants to keep them
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9 {! L- T8 V1 ` }9 u: b公仔箱論壇off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ; v8 Y: t. J3 H, }( Q$ S- ^
4 C3 Y# U7 H0 \8 V. x1 G& h/ \1 [* xcages. 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 5.39.217.76# e, M- a5 g- h1 Y
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overhead watering. tvb now,tvbnow,bttvb* k0 K Z6 [6 e6 G; S. M0 D
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
. {( m: ^! L2 n3 ?* ?0 x8 ]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 , C& V- t; q% A
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wet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.# F, W9 J: _6 z% W
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Remove and destroy or throw away diseased leaves, both off the
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 公仔箱論壇# m& x; U- H# x9 z$ E1 e- p' d
7 V- d# V: d# Ytvb now,tvbnow,bttvbenough. If a plant is heavily infected
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7 r/ x0 k# [3 z6 i1 d* \1 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。, 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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1 i1 @+ ~% C6 G- o# RTVBNOW 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。to remove diseased leaves should be disinfected before being used on a different plant. t1 i0 Y8 g2 }" G; R) X/ ~$ s* h# T* w
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。" e; q. F- z& V
Spray plants to prevent and control the 5.39.217.76* m5 z\" {( P' ^8 `$ q( {! D1 F, k
6 E* R7 S1 N/ i9 o( }; sspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try tvb now,tvbnow,bttvb! N0 T* h3 V" C3 V0 v/ M
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 X& }! J. I. i* `$ \: W- X s
GreenCure.) H* N: [' z) u7 N9 U; ?
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9 Z1 ^" O9 j- t# e# [* A. D6 Itvb now,tvbnow,bttvbLate Blight on Tomato Plants, }) B1 v* k$ h7 _( ~
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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8 V1 c* z7 `4 Y# |
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plants in a garden. Once a tomato plant
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb. y- B) `3 [4 x1 k L
5 ?1 m" { U% B6 K# \5 Q% I5.39.217.76water-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 blight4 v& |; P4 x; s5 y0 ]( }7 F X
: b9 p- P( r' @: }. }tvb now,tvbnow,bttvb can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb& f$ l' p" E8 i3 _9 j$ Q
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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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