Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but
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! U6 G/ U( V& Z3 @, y/ c' f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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2 h; @; L2 G! Q5 ?* }5 S6 stvb now,tvbnow,bttvbHow 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 tvb now,tvbnow,bttvb6 k3 t, d5 f3 |8 X3 f
) D' {7 ]3 n3 q ltvb now,tvbnow,bttvbnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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in color and form concentric rings, or a
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7 _0 y y! K) ?6 `tvboxnow.combullseye 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 公仔箱論壇! Q! W+ e+ @9 q! G8 B7 I2 i
$ _5 n2 J. E& S d3 LTVBNOW 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。of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.tvboxnow.com0 j6 [- g7 w9 K/ Z, e( F, n" b; z
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 E) [6 d) ?6 ?! h
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How 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 5 R& Q% D- g# Y3 Y
# j7 E1 k) N0 L' b8 Y, Qtvb now,tvbnow,bttvbshape 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 {5 L; l3 l& t; Y, ^' T
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Small dark spots, the fruiting bodies of the fungustvboxnow.com' L5 F1 P. g- d' P% r
) j& m4 v- K3 e( Z6 mTVBNOW 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 tvboxnow.com4 P3 o' T& w4 |' [
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and dead. Stems can also become infected but
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infection of fruit is rare.公仔箱論壇7 t3 \$ T; O" V V; m) q" s3 d U
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6 C1 [. q! D# V r% P公仔箱論壇How to Prevent and Control Early Blight and tvb now,tvbnow,bttvb\" o* M0 z1 }9 L% U. R( \
; c# n* p' O9 M3 ~. G- X+ N公仔箱論壇Septoria Leaf Spottvb now,tvbnow,bttvb! Q* c% T- d$ k" o
0 l5 V. |* \$ e1 `, T( iFollow the 12 easy steps below to enjoy a 公仔箱論壇1 A- n2 u/ h9 \4 n* g+ I& g) 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。8 _7 ~# t7 \8 q( s' K, q
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.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- `# l" L' @0 R
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Weed your garden. Some weeds,
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! A& u [( q+ e5 ^. E4 S2 t( {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 m4 Y/ H) k# E: a! @' R( @公仔箱論壇Rotate crop locations. Don’t tvboxnow.com _% u- R& V+ m+ a9 H/ U
/ \; K1 s, |2 h0 d$ N9 ytvboxnow.complant 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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( P* ?2 b' [: @1 j2 y/ N$ TGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.公仔箱論壇# V) F! [( t7 S$ V( u0 v! j6 S
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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" O1 |$ Q+ ^& P% g; }, G. d; q公仔箱論壇fungus from the soil to your
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, \% L/ F1 R" g8 H4 D& t: @8 F" X! `tvb now,tvbnow,bttvbplants.; F' L: I; F! {1 B# L# G5 F
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。- J# z8 ^0 S2 ^- B8 I( z# x
Stake or cage plants to keep them tvb now,tvbnow,bttvb3 o5 e6 X3 L) k) m" k
" s6 i! L2 g) G' W$ O4 j. _" ioff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and tvboxnow.com+ O, d6 N& R- Z+ D7 w" |6 r
2 D4 M6 m4 H4 I" `) A7 |. X+ dtvboxnow.comcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 公仔箱論壇7 O% {: _2 L7 Y D' q" c
: B6 |7 V8 N9 M. G$ J5 etvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use
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# M- \ L. P2 S2 y$ zoverhead watering. tvb now,tvbnow,bttvb8 c- s8 i6 o, M8 R
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 6 z& T9 W) O7 b1 H. H* V
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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" m; X2 {' K' m9 J i6 g; [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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5 ~' _9 x) h* B% J公仔箱論壇wet. Keep your plants happy and healthy. Weak and stressed
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\" X$ u7 w, Q' c3 A* o+ l% G公仔箱論壇plants are more susceptible to disease.
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Remove and destroy or throw away diseased leaves, both off the
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c, }) ?; t: S# S# i8 e公仔箱論壇plantsplant 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 infectedtvb now,tvbnow,bttvb$ v; |, `1 k+ j9 F6 o ^! ]. N
0 A/ i- G5 a5 ?9 `5 F }tvboxnow.com, 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.# M9 N0 j: f3 p: j
, Z: n, _3 n/ q' w( @5 c: ySpray 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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GreenCure.tvb now,tvbnow,bttvb& ~4 v* l5 V- r R) J' y c$ S
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Late Blight on Tomato Plants公仔箱論壇5 r' l5 X& _: J+ w5 ]3 Z7 g
5 t4 D% y& w/ k% B% ?$ yLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb, b/ A5 Z7 q4 U6 C$ X
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plants in a garden. Once a tomato plant tvb now,tvbnow,bttvb2 w) F% l7 K, G0 {, i j- z6 q
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, " f' e. |( b7 ]! e; Z' w
Z9 D# Z6 I% z5 }7 Z) q公仔箱論壇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公仔箱論壇- Q- A/ P. i9 H% S7 d2 e4 E! K
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvboxnow.com+ _: T) q1 @3 Y0 P! {
/ D! G0 M* @7 y0 j5 R8 |+ r7 S% btvboxnow.comSeptoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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