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 6 z$ ~3 p7 V3 U9 I2 B0 k3 a5.39.217.77:8898 \' O- X+ A$ c! f' v* w5.39.217.77:8898can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.77:8898, }' v/ W* l$ W* Y% ?7 k/ W$ A
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How to identify Early BlightTVBNOW 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* b+ G# ]& U/ K$ i, K+ y" g
: `* t1 r8 E# q9 M2 U* t( k1 gSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 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 {4 |* n) u* y4 ]& a) Z( G
& B/ m Q- G% O3 i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 " C0 Q/ f+ d2 t; z1 T H: 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。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。: ]5 ^. d' j8 i" U- y
in color and form concentric rings, or a 3 N+ E1 K% u0 R5 ^( P! s
! [1 _: g+ H6 R( W5.39.217.77:8898leaves may fall off. Extensive loss tvb now,tvbnow,bttvb& s2 c3 S: R) {8 z3 @ B. k" K3 w5 O5 q
, e$ C+ T' k7 j5 E* R9 h" }5.39.217.77:8898of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. ' R' D9 `7 Q+ h( |) ~tvb now,tvbnow,bttvb ( a- y# }. h8 a" D( W5 b0 r7 @! F" PTVBNOW 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。 - \3 K3 r$ _0 Y8 c8 M# P/ h4 f* A# OHow to identify Septoria Leaf Spot : F' g1 }( Z5 b8 i4 P! b ( ~2 U9 w- u, Z$ d; C! USymptoms of Septoria leaf spot also start . v; b0 S) l6 t( ~5.39.217.77:8898 # u3 ]6 u8 U! j: B" [6 Q3 L- j3 Y0 H公仔箱論壇on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change . R5 \. u" i5 E- I1 i1 @" g公仔箱論壇 8 ]" z# W2 Q- R, @) i) o/ U7 @shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. ( r8 t. B; `) p4 v3 r5.39.217.77:8898 . m& w( W: y/ P公仔箱論壇Small dark spots, the fruiting bodies of the fungus' [$ G) ?6 f9 l4 Q5 ~
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 ~6 o: K* Y# h: Q# j/ W. O , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 1 q [' ]7 D' r" V+ @ + t g2 ?7 Q) kand dead. Stems can also become infected but 4 a4 |% o. i$ J& ?6 N\" R8 STVBNOW 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。/ o9 s8 e4 J, x! Q
infection of fruit is rare.公仔箱論壇 @6 @1 O# G5 E
0 f2 |. Y\" }- f\" B1 D: Z\" rtvb now,tvbnow,bttvblong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. & ^: r8 ~$ d2 w0 ^! O* I5.39.217.77:8898 . {0 K' k. [8 {4 fWeed your garden. Some weeds, 5.39.217.77:88982 k8 p, e" G1 A4 d7 ?; |) i8 g
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. # o& B+ ~& j+ {" o/ Q" G5.39.217.77:8898& z" _& n* w" M: k$ u! _: X5 b Rotate crop locations. Don’t " |* g# W8 {7 g( c' g# I* l$ x
$ Y3 i- ^( G- g, }7 H5.39.217.77:8898plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb& H4 c1 B) i" J' [" V+ Y% c
2 A* Z3 z; c8 m# {( u( E6 {7 FTVBNOW 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.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。' D; m, T+ u7 d$ l9 m' b: s
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。' Y4 d5 e6 D9 S, T& f9 N
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. . Y6 g3 p3 s( x H6 |0 vCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 5.39.217.77:88981 [( q4 q+ n6 H4 U4 y3 S' h$ f
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fungus from the soil to your * m/ k' _" u! L5 j- a* [ - D- e. i+ ? G' ~# z3 m, f( X0 u Kplants.7 u, @& C& e3 y1 o
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Stake or cage plants to keep them 7 `2 y: b5 `/ c$ b" F
- ~' b G: W% V9 hTVBNOW 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。off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 9 t9 F: b( z J2 x: K) l
$ b% Z/ p! Z; ~& utvb now,tvbnow,bttvbcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ' v: j& w) H; F* c* G5.39.217.77:88985.39.217.77:8898) k+ t4 c2 Y& n+ u
space above the soil without any leaves. Do not use , e) L6 H/ [8 y0 v- Q1 M; gtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb o7 ?' }* E) b; w8 X; X' F! \) u
overhead watering. . T% V9 P. Y# g5.39.217.77:8898Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. tvb now,tvbnow,bttvb4 |% f4 v- g" v) 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 * j. M5 p! \$ `7 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。* v3 U# x$ }- @3 @$ ?% k( |
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are - j: O; K4 j* J1 Ltvb now,tvbnow,bttvb* j7 y- _" z- h! p) V
wet. Keep your plants happy and healthy. Weak and stressed tvb now,tvbnow,bttvb7 O; g+ c, a7 L; K. T% T1 S
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plants are more susceptible to disease.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。" m: s, D9 H* K3 Y! E
0 C9 ]# ?" P b) N5.39.217.77:8898Late Blight on Tomato Plants, p/ O/ }' v; y+ l3 N( j7 r y& f. C
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 6 U4 u! v# W% h* `! h% P- H公仔箱論壇 3 j6 h) i8 R9 `2 O2 j5.39.217.77:8898plants in a garden. Once a tomato plant 8 [- x! l" M7 R7 u6 ~) Y5 p. G. Q# O/ N
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, ; y/ F8 U5 p% C6 r
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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 blightTVBNOW 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。* h, B, I8 D3 |( h O( i\" e E
; w3 ?7 q' a- O: b3 E can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and , N( n% ~& D3 f C
( l" c, w) w# D0 h/ Y0 ltvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections.