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 8 c4 d3 L/ K. H" x, Xtvb now,tvbnow,bttvb; i+ H! O1 \9 g+ U4 F$ H& a7 m
can start at any time. Infections can occur anywhere and are most severe in wet and humid 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。" ?3 u9 ^$ A: H& U' X5 V
6 f# Y' Q) V 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。 7 q( z4 e+ u: ~. O& G& m5.39.217.77:8898How 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。( w* V5 \; {3 |2 W9 [1 c; f( w
8 K" a, i9 P' z- ]Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 2 R" M' F& B) y+ |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。! o& L: g7 Y8 f( n+ G
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown # v- d( b! m. e2 m+ stvb 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。7 {0 V; ]2 e# ~4 [7 X7 T
in color and form concentric rings, or a * |; J) P) ^8 O! R: l: \5.39.217.77:8898 9 a' K5 k: c& c/ @+ D公仔箱論壇bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, # o5 v9 R2 }: M0 u* b1 R" q0 m J6 n0 e& e* P, f& A( U% C8 k$ w leaves may fall off. Extensive loss 公仔箱論壇9 x" n% l& L ]! E+ x& [
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.tvb now,tvbnow,bttvb( c, b' c& `9 V; q% a, r. c
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How to identify Septoria Leaf Spot5.39.217.77:8898) {: G7 }: l% i
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Symptoms of Septoria leaf spot also start , k2 O; a7 Z2 B- I& B& n2 S' V公仔箱論壇公仔箱論壇4 |* q/ L! ] {. _4 Z8 G3 H
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change * k+ j- V; ]" q0 R H) I* ~# u7 T; t! [! g
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. " R( f: _! x- D3 G: l9 | 1 ~) D% y+ z/ ^5 Q4 d5 u. |1 ySmall dark spots, the fruiting bodies of the fungus5.39.217.77:8898' ]! d5 T# F6 J, M3 @9 d
公仔箱論壇0 S; \7 Y) N* Q7 _, W( g( o+ q1 v( l , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 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 t" B) m, F( f
. U0 n: l8 ]0 Q3 G' S- D5.39.217.77:8898plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas # U' a/ z: F' |0 y) g * L m, ^( \" Z7 [9 t) ? c* f5 ^! ~公仔箱論壇where tomatoes were grown.4 q) e1 @- d/ \3 K8 J: T6 v
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.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。$ H2 Q8 v8 U: T: N7 R
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of ; ^& F0 x0 K' m2 {' t9 S8 K% I) e ; m+ _8 }2 D' }* z, L2 A, k7 sfungus from the soil to your + @) h0 i) d/ w7 \6 Q" v. e* L) U" j) R5.39.217.77:8898tvb now,tvbnow,bttvb. Y+ r1 a" h l/ @, o; u" a
plants.- g9 B3 ^9 p, J4 l- r
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Stake or cage plants to keep them tvb now,tvbnow,bttvb3 p$ k6 ?/ U, l7 a) N$ i1 h
1 t1 N% y$ i Ktvb now,tvbnow,bttvboff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 9 A. ^7 Q' V! a8 B% D6 U! K" b7 S8 x
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ) r% [% p. V. ^+ 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。$ P. y, S7 Y2 q9 m4 @# q- u
space above the soil without any leaves. Do not use 9 f\" k, N2 v4 X) a3 J' T% 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。 ' _4 ^\" c$ f- f! G8 rtvb now,tvbnow,bttvboverhead watering. : B' H+ m E9 |( _( `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。Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 8 g8 h% b# |) L: y4 b# oConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 5.39.217.77:88980 U, g- A( Z1 \' {1 K8 l, [$ u
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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 5.39.217.77:8898% j! q* H# Y: T: n" I
- c/ J8 W/ w* x; B" v( w# T& G5.39.217.77:8898enough. If a plant is heavily infected 5 G# }& e7 X% A/ Z公仔箱論壇4 K( W! t; P/ h. i , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used tvb now,tvbnow,bttvb" E6 p; d6 W7 O7 c
) k- e3 f8 }+ a# X* u+ b% gto remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇- ?5 @% z7 a2 O2 }
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。) |3 E. I" t- ?
Spray plants to prevent and control the : l\" B3 F9 ^7 x N8 J8 G% p; M8 ftvb now,tvbnow,bttvb. [& q\" z8 i0 y( T
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 5.39.217.77:8898# G" T. K7 e1 p# U6 f( B
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GreenCure. # E: ^! f. C- Q* ^( Gtvb now,tvbnow,bttvb / G2 O# ~0 _1 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。 ; Z; P% l/ e, }1 e" Z1 J, @; v) B5.39.217.77:8898Late Blight on Tomato Plants ; P' k" J0 X% q7 X' 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。公仔箱論壇3 s2 a1 ~2 K0 e$ r' z
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato + _. a4 }+ `& y, P " }' Y" Y5 `' eplants in a garden. Once a tomato plant 7 @7 }1 ^1 }5 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。5.39.217.77:88986 ?0 K. U% e/ ?9 n$ k+ o* z" N
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, Z( R: H, E& b/ H % Z- x6 j- h' e. V, ~! c: b. Awater-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. ^8 b: R7 W
公仔箱論壇, j2 F% {9 `3 z- | can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 3 l, N# M( W% a* b; t# N; n
0 Q" D# e9 n2 s' p公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections.
