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8 G7 `0 P% \% l1 z5 l/ D
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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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" D- F+ D9 C7 ?) v7 U, vHow to identify Early Blight
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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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- r. q- Z0 n* o$ G8 M, bwww.tvboxnow.comnewer 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5 n- L3 w/ W- x' u
9 K; c' i3 { Bin color and form concentric rings, or a 5 C0 G2 ?! R; A6 X6 t
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, www.tvboxnow.com" W% z8 { `) ?" E
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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.公仔箱論壇3 K- z/ w$ B1 |- G; w9 z! O
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# |. N. _9 f% l* q n; 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 Septoria Leaf Spot+ W( J" ~( k6 Q( [( N
3 c; l6 M$ P1 G5 H! Itvb now,tvbnow,bttvbSymptoms 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. 公仔箱論壇2 [+ T. p h }1 n* p
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Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb& ?( {+ f) @& Y. U
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry
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and dead. Stems can also become infected but
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infection of fruit is rare.
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9 u H: ?6 I! o% J公仔箱論壇How to Prevent and Control Early Blight and
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) z2 E( B! u6 I/ |9 L\" B公仔箱論壇Septoria Leaf Spottvb now,tvbnow,bttvb, i- }3 Y9 L( q6 W; c+ A, j3 y% E
: L* [2 p. b& h2 S) Fwww.tvboxnow.comFollow the 12 easy steps below to enjoy a ( w* K/ ~1 G8 O( Q% d0 p) u! c
6 a7 s& T: g6 @6 S G& ]* xlong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.2 w3 Q0 t3 V' a4 D
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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 公仔箱論壇" r3 G6 y1 e* y/ v
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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 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。' z- T/ v0 [' y- N, R& A& s) n3 w5 ^
+ ~6 K; c& ]) R, q6 y L9 w公仔箱論壇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.
) J8 S1 C4 v+ z, twww.tvboxnow.comCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of / e' S; p5 @. m
& _, e' |) C4 j; o6 X7 hfungus from the soil to your www.tvboxnow.com: E' {- x7 C* v0 {
: \2 S- D3 S1 ^3 j4 K. Q* O N/ XTVBNOW 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.
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% `+ ?7 e, H5 ^Stake or cage plants to keep them tvb now,tvbnow,bttvb, F6 r6 C$ O0 p
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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 www.tvboxnow.com; z# D' B5 \* V+ w& X$ U5 L
, M o! s4 W& ?% Z# s/ S公仔箱論壇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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space above the soil without any leaves. Do not use $ P* |) g5 g\" }1 i% W' x
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overhead watering.
& i: c% O3 k) H" x1 ?# d, t% x2 `www.tvboxnow.comAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ' g1 G* n1 q9 R5 C& O7 @, U
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; {1 t( X6 j% H7 e, h5 P3 F
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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 tvb now,tvbnow,bttvb( @, N0 |! K0 m/ D4 c9 [1 A
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wet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇8 X- j- V( u' V3 Y$ p6 F! y
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plants are more susceptible to disease.
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3 @+ F7 O- t) O, K- S公仔箱論壇Remove and destroy or throw away diseased leaves, both off the
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* i\" Y* d; V- P, Dplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early
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enough. 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
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( V! m8 }+ A, C7 v8 |0 Bwww.tvboxnow.comto remove diseased leaves should be disinfected before being used on a different 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。4 Y6 J7 T: E' m6 c3 ~; w1 v
! ]0 P, \* l% L4 ^Spray plants to prevent and control the
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* q# G7 z' a8 V; h q! a, G/ Ispread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try www.tvboxnow.com4 G1 ?1 i' o/ g# ]$ d$ Q, o
( n. M9 A1 n5 I3 PGreenCure.1 @, T! U9 {6 K; ~4 r x! Q
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Late Blight on Tomato Plants( U. d$ }5 S1 B8 p0 c6 o
7 V* |0 ]. R' h" y! s/ F* J公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato www.tvboxnow.com$ y$ F& z' j+ \- l9 f5 N
( ^4 A$ ?! f( C4 @1 s4 {, Oplants in a garden. Once a tomato plant
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$ b8 D% N- _& A9 h0 F5 fis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, ! [: x8 X7 l+ ~+ m! K$ M! A1 _
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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) f6 e( x0 l C
- E8 U+ K* X+ u4 F3 W9 t can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 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。1 g, |. w% @8 q/ S. V; ]& O
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。7 Q: T1 `4 D. @/ y
Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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