標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁] 作者: 6t6t 時間: 2019-4-13 05:03 PM 標題: Early Blight and Septoria Leaf Spot on Tomato Plants
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! `# ]! x# n7 l/ U$ k4 E( w
7 P8 J) [6 y+ E2 Lcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas. . ^/ d/ K$ D$ o0 Q- n, N 3 o3 h# z# {2 d4 m! c8 D; U: k# dTVBNOW 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 x4 S6 Y% r4 N V: m
How to identify Early Blight7 n* G: Q3 U) V: Z
3 v' o* N9 j2 [& O1 ntvb now,tvbnow,bttvbSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 7 C y* w' }! o$ t3 I6 I( @. p" wTVBNOW 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。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+ \! c6 n# K" {2 a- Q
newer 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! T2 v6 B; G: r2 E
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in color and form concentric rings, or a ! ?$ _( D+ g9 p) Z8 atvboxnow.comtvboxnow.com3 {2 V6 r1 n' U: W
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, # o |$ Z0 ^# x: ~5 ?. 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。 " U# J# n$ d) v1 @2 |leaves may fall off. Extensive loss / c* K+ P& R* Z9 Wtvb now,tvbnow,bttvb - D& C2 h! r' k% Q. }9 D* M公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇" a0 A4 A. x0 k( k
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. c) n8 Z2 ?. S4 s- q* _How to identify Septoria Leaf Spot 1 p+ ?- x0 H. ]5 gtvb now,tvbnow,bttvb 7 P6 x5 \" A, z6 D- GSymptoms of Septoria leaf spot also start ! Q$ ?4 Y9 I8 ^8 c8 e5 U 1 d1 W, E- E+ ]: I$ Htvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvboxnow.com" h5 n" ~# |0 H' Z+ D; A
2 c6 x. A6 D9 w1 X1 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。shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 3 m/ d# S" l' j8 G) z ntvb now,tvbnow,bttvb2 L/ \( h" T+ T7 t9 D
Small dark spots, the fruiting bodies of the fungus ' C0 w# K g* ]* J& ]6 w公仔箱論壇! t; m9 G; r6 c2 `/ N , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry ; V. k: s# T" C- W) t. ~tvboxnow.com3 c* P, m: `5 N; x. |
and dead. Stems can also become infected but : Q$ s' V/ O\" C\" Stvb now,tvbnow,bttvb$ ^- L- e) ]) C\" [; H
infection of fruit is rare.tvb now,tvbnow,bttvb) g6 J4 ^$ V) r7 r E
! N7 Y& e1 H$ o5 M1 P公仔箱論壇long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. " N( T6 ~' ]+ n4 @tvboxnow.com公仔箱論壇, s0 y( Q9 a* @( |6 g/ N Weed your garden. Some weeds, tvboxnow.com; @ Q" q! K4 _! l$ j' V
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb1 u/ X d( r0 W. J6 d, 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。$ j/ R+ g" u& x& q" ?1 \$ v( V# _ Rotate crop locations. Don’t ( |9 ?4 y% A( D0 x! y
4 S) w' D3 L* F9 stvboxnow.complant 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# |: A! g. S( h. l9 ?& W0 i! f
) y( @) z& h1 m, htvb now,tvbnow,bttvbwhere tomatoes were grown.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) V4 p. I: j& i* V1 M0 E$ Z
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvboxnow.com* H, g! ^* b( _
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 6 Z1 J1 k. I& ]3 }) r U. o! B |tvb now,tvbnow,bttvb5 c) T& T9 x) o; A0 G0 J2 K
fungus from the soil to your tvb now,tvbnow,bttvb! ]6 I# K, P' l* c* ^$ }& m8 p
1 Z2 p7 j+ i6 S$ d1 Gtvb now,tvbnow,bttvbStake or cage plants to keep them 9 a& A% d9 I7 Xtvb now,tvbnow,bttvb H" Y% Q- w9 z I6 S/ z. g* {0 z Aoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ( Q( V9 e3 C! e: N9 s! m4 R6 j7 x- s0 A, iTVBNOW 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。% D- U: f! X: N( Z
cages. 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1 j- k/ d$ ]) i3 ~8 w0 p% Q
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space above the soil without any leaves. Do not use 公仔箱論壇4 D. C, D1 [* O$ U
) G7 m+ {% H6 k: e7 D ~0 U W+ w公仔箱論壇overhead watering. tvb now,tvbnow,bttvb5 w- Y }& }) c' y0 z7 ?
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your 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。7 k+ Y, v# W' B3 R: K
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 3 `2 o9 |8 o7 W1 I4 N# K
1 d) q" r5 a- r1 j6 A& `( Qtvboxnow.comfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are tvb now,tvbnow,bttvb5 E M- X! z! R2 t& k- [
& M) [# n6 O' G$ d3 [" ~8 q' t- ~Remove and destroy or throw away diseased leaves, both off the 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。. S. c) t d6 m* g
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early % ?4 L) @' g4 a0 S3 g$ Mtvb now,tvbnow,bttvb 4 } y/ R6 J6 c/ p( lenough. If a plant is heavily infected2 o# p- f% h1 _' e
0 o. r( v8 }8 v2 J , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used ( _, Q' `) w- Z5 s1 S4 @. E3 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。 # U: A; g. ^, j) Ptvboxnow.comto remove diseased leaves should be disinfected before being used on a different plant.tvb now,tvbnow,bttvb" J& U# b2 [* ?5 @& f& e6 M2 W
4 i( y7 k* _5 n# X# I4 i公仔箱論壇Late Blight on Tomato PlantsTVBNOW 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 |2 n. \2 h! n6 q
6 I" d6 c% G e) h1 T* @4 K公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato " m7 o G* X; H, F1 I
& Y7 f/ S5 t' Dtvb now,tvbnow,bttvbplants in a garden. Once a tomato plant % c) N1 G8 R- \& {+ C公仔箱論壇 * l0 N: T$ \0 i5 {( etvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, & G+ N: s1 I) R3 k6 N, D/ N1 _
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' y( O- K7 i1 H7 M7 Q
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 ; a6 A* R3 T, g5 P8 {' N2 Ctvboxnow.com公仔箱論壇2 j9 H5 Y2 ]- E, J( X/ a can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and , P# l# i& K$ ^% @# M$ f, R4 P2 T3 cTVBNOW 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。 0 p+ `5 z7 X8 W. I3 }$ U5 `tvboxnow.comSeptoria leaf spot infections will also help prevent late blight infections.
