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 0 \! s% K7 K% {4 g& T# d7 g$ \ ; w- t$ K. R; t8 b, n3 P& q& ttvb now,tvbnow,bttvbcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb! S2 i9 O6 ~' R; U
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How to identify Early Blight % \' F. M# M8 t* |公仔箱論壇 + ?0 V$ `* V A, f2 O( D& G% u公仔箱論壇Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 0 l) v2 J$ \. M- |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。公仔箱論壇+ e6 b$ d3 j1 x& Y5 X
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 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 X! n' X4 a; l' J4 b
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in color and form concentric rings, or a , t( u; D6 I% O. P公仔箱論壇\" F\" y2 N5 C7 B! F$ H$ F
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 5.39.217.77:8898" _0 a9 N/ }5 }& V% _$ o, r# ]+ `
5.39.217.77:8898# F' r9 Z+ j6 ?/ p7 s leaves may fall off. Extensive loss 公仔箱論壇# i# J+ Z. P% i- L" V
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.+ w1 ^4 x" t [3 O4 A5 M: G1 w; }
2 n6 K" i7 V, t" `4 @8 q: F p5.39.217.77:8898 1 M T( U. T) u5 CHow to identify Septoria Leaf Spot ! _' t- u+ `+ o9 m! h! K5.39.217.77:88988 b( K0 H+ D% p" G
Symptoms of Septoria leaf spot also start : [( T4 p; Q5 n! [2 W" j公仔箱論壇! U6 M2 K, p6 Z3 F
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 8 s$ C6 j" A9 z; t Z# K公仔箱論壇% H7 g1 ~2 K1 ?, a/ R1 M
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. tvb now,tvbnow,bttvb( ^! w0 Q% R9 @4 F r \
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Small dark spots, the fruiting bodies of the fungus 1 Y6 H: Q' T) `! D公仔箱論壇. |- [! C3 p- n1 B/ | , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry tvb now,tvbnow,bttvb3 [- W2 R1 t1 c8 P* c
% N* _/ V: U9 K# L1 L; V# n1 C9 EWeed your garden. Some weeds, + ?5 \- |% r+ {2 r$ a公仔箱論壇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 i- m- P. v. X- k p
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. + g% q6 u/ Y6 @2 \" \6 A$ t0 J+ B; V3 @ b Rotate crop locations. Don’t 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。 I: ~) P* ^2 j6 m* e
/ ]' q7 ^7 [# Kplant 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。! s4 V+ k& \8 K& n3 `
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where tomatoes were grown. 4 L: p) V- @" s% y) f' H% ^ Y4 `1 N 9 |/ p- l% j @. E# {7 _Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.# U4 c# Z: B3 ?+ M/ e# F) q
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 1 U0 Y; ?' e- L$ N i/ ntvb now,tvbnow,bttvbTVBNOW 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 \" f' V% Z7 @) [8 Y
fungus from the soil to your , { u) h0 K9 Y' `( e% h8 Htvb now,tvbnow,bttvbTVBNOW 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 z. X. @, d9 z' G+ Z
plants. $ X: M- H$ z7 U' K6 E $ p( m2 y( r7 I% f5 T* }: ^6 T6 pStake or cage plants to keep them " @7 G! w0 A5 X# B2 y7 q! x! @6 Z$ w) ?) _7 k# H8 i
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 1 Q4 u( W8 f9 B! Y5.39.217.77:8898 , Q& ^0 x; A. o0 i+ ?' V& L, g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 4 l y+ e+ \! Y3 L/ `0 r2 P8 G' r6 Q1 O& o
space above the soil without any leaves. Do not use tvb now,tvbnow,bttvb/ H/ }# ?9 u% v$ `* \\" n
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overhead watering. tvb now,tvbnow,bttvb& v& Y3 r: x1 i. q
Avoid 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,bttvb+ `3 C* F( U; m+ r3 g
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 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 e0 s- U1 J2 }3 m5 g3 x' `; V
. e7 H( u; y' _0 M, e公仔箱論壇fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are / _7 d4 d# C* N1 @ 1 G i+ O: z- {& P2 q( _5.39.217.77:8898wet. Keep your plants happy and healthy. Weak and stressed - U |4 _ O% h, r$ I, b
( @2 c3 _# h$ m+ ]* }to remove diseased leaves should be disinfected before being used on a different plant. ) d6 I( H4 p7 m- N# \tvb now,tvbnow,bttvb 6 u: I; v9 w% u1 b. Q6 ^7 H" y: rSpray plants to prevent and control the tvb now,tvbnow,bttvb5 u% {; m2 h) e3 s7 O& N5 y/ b
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try : N* G& Y. p. g- \ # P; h1 C. j1 H7 N4 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。GreenCure.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。 E1 T4 |8 c$ F: w. _0 Q3 s
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Late Blight on Tomato Plants 0 D/ e% R |9 _* g7 u& t( b Q 7 d( I6 j. M& 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。Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:8898- a/ h6 H6 k( B8 i! ]' T
5.39.217.77:88988 i. G4 i1 a8 _# v9 i, _8 _ plants in a garden. Once a tomato plant & a2 N2 W8 v, B5 `
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, ( I. J5 }1 W3 e) ?% S& 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。公仔箱論壇7 o3 I3 _( x% m3 ]( a( w! ^
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 # Y\" P8 K5 f L9 r9 d( P. Ntvb now,tvbnow,bttvb5 ~) q, D6 U. S' Z2 H can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 4 s# C, w p) o * V5 U* i( d% MSeptoria leaf spot infections will also help prevent late blight infections.
