Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 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。& _/ K, G1 E$ K8 {5 z+ D; g
W0 x# W' h8 G: {* b公仔箱論壇can 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 Blighttvb now,tvbnow,bttvb& T: b$ f8 Y/ R! U* d+ B. x
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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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. j D" I4 d6 f$ a& x w公仔箱論壇newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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R1 g3 ]2 _% A6 ?3 b5 M- Q& U公仔箱論壇in color and form concentric rings, or a
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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。( Q# C" G+ C; E
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leaves may fall off. Extensive loss
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7 M \, S0 [( I) Q. B* I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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! D7 V, r9 L0 T- z6 O4 _tvboxnow.comHow to identify Septoria Leaf Spot
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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
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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. tvboxnow.com/ P7 y! ^( w' w" P' w
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Small dark spots, the fruiting bodies of the fungus
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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, t$ M9 W4 e. C, {
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。2 |; [. V3 P. |# S
and dead. Stems can also become infected but - v. B: n5 @\" n/ V$ X
) V! L, I) u0 W$ p/ @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。infection of fruit is rare.tvb now,tvbnow,bttvb; @* B5 D- ^' D' r8 J/ U0 o0 ~
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( i: S. e+ i C' ?7 b9 m' a7 [* x: ztvb now,tvbnow,bttvbHow to Prevent and Control Early Blight and 公仔箱論壇, i: ]& H; x9 P2 T# W\" j
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i4 U1 H4 F& }9 ?tvboxnow.comFollow the 12 easy steps below to enjoy a
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3 f1 e/ M: C) P$ q3 \- Jtvboxnow.comlong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.* u; a' H) b! j. e* \$ H3 [! j% [
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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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8 V, J# L. ~( V8 T% ]" ^9 m* ktvb now,tvbnow,bttvbRotate crop locations. Don’t tvb now,tvbnow,bttvb: X. g/ M9 P0 v& E( C3 R
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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
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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.
2 l2 g. r b" j. o; z% V# A% z! Ntvboxnow.comCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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9 F7 A# w9 _9 ~( h4 w6 Z5 Rtvboxnow.comfungus from the soil to your
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plants.
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Stake or cage plants to keep them 公仔箱論壇/ ~ [3 P5 \) o9 K! z. l2 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 tvb now,tvbnow,bttvb2 O( {- B5 A, E& ]8 F$ 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
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5 h- `: F: l6 [: b% m: a9 Y% gTVBNOW 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。space above the soil without any leaves. Do not use
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overhead watering.
$ {5 M$ O4 P% g [( K5 y% W8 Y2 I4 Q0 w公仔箱論壇Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. tvboxnow.com% o/ S6 [" E7 I1 m
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 公仔箱論壇5 Q/ T( ~. o* T G6 j! \
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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 " D; ~5 K, X6 Z9 K3 G9 u; ~
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$ `( O* a1 W# h4 i" J
wet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.7 d: K. ~0 l$ ~. ?# r. ]
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Remove and destroy or throw away diseased leaves, both off the 7 a; e( B/ V% m7 _
6 G. w# N1 G( z5 N2 Stvb now,tvbnow,bttvbplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 公仔箱論壇$ Z8 l7 o4 p: N0 N% o
3 w% V, \9 f& S* z+ Y0 D1 X公仔箱論壇enough. If a plant is heavily infectedtvb now,tvbnow,bttvb* v, A2 j9 J\" C! B, A \4 d; i
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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
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to remove diseased leaves should be disinfected before being used on a different plant.
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2 D" t) [) `( D8 M; `. ^" R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
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& \3 E$ n( Q0 B; l8 w" hLate Blight on Tomato Plants公仔箱論壇2 y2 Y& o0 V2 G/ k" C. K8 F: W/ }
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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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# r6 o; ?; l: J! N+ \- N' X( b2 KTVBNOW 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 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。) c" ]; S( ~& \1 ]: T; h# b+ ^
* H( @/ M, T7 Jtvboxnow.comis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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" G3 t9 ?, _( u8 L+ ]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。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! ~( G1 t1 o. Z1 s$ d) s! d7 J
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 2 W' b; i! M: A9 p- N3 P0 B
7 d3 @) B- o/ k9 [! q公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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