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 * z$ c/ U9 f9 _, 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。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 | q P8 Q ^' u9 z
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. $ @- m1 p7 X2 D) a7 }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。% l' J: ` \! {6 J, O3 Y% G+ U& q
+ P9 i2 w# u8 F; u7 BHow to identify Early Blight7 G2 ^1 N, m, R$ G; O7 r
- R2 t: Q: m, B3 G& 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。Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to $ A+ z) n" I! P! _! J
tvb now,tvbnow,bttvb( t1 C+ g2 N0 d' o3 q' B0 t" ]3 n B& p
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 8 v5 r. H! W. _* i& Y8 Z) }
; U# y/ M2 e7 f2 o) f5.39.217.77:8898in color and form concentric rings, or a : _0 Y' R) b: R& A7 p公仔箱論壇 3 g/ W$ Q, [+ [! e5 N+ obullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ' C: w. a1 g+ D公仔箱論壇 5 h% K( n0 t* M; W3 n% V6 T7 C7 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。leaves may fall off. Extensive loss 2 j: W5 \, u$ p! d公仔箱論壇3 }' ?6 C6 B- o, ^: f
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.# i/ ^# w: i7 z+ ]
7 V+ u/ t) P9 I: a5 p$ ~ / U( N+ d& B* E% j6 L, cHow to identify Septoria Leaf SpotTVBNOW 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。$ i2 f4 c) y p& R: l0 w: Z
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Symptoms of Septoria leaf spot also start 9 i; R4 S3 s2 ^( Q4 X! Z' u公仔箱論壇8 U& o1 K3 R2 c( d& x
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 4 Z% F2 G* P ], o5 V. z' r
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shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. - Y' R2 q) Q4 d# ?) I1 I ztvb now,tvbnow,bttvb5.39.217.77:88985 n' D f: J2 \7 F) b4 e# `
Small dark spots, the fruiting bodies of the fungus公仔箱論壇- |/ W$ I( S- @$ `3 c7 y# n
tvb now,tvbnow,bttvb; ?# V, c; ?1 }8 O\" c( e , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry - Y q1 z+ J9 [0 M! {) o+ \3 T r/ M8 U: j
and dead. Stems can also become infected but . @! x: O* w: w4 |6 q( J8 |5 i/ g7 r' 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。& y9 u% J# y; F9 h2 @* ^
infection of fruit is rare. 4 t" [. E7 @0 n* c0 M8 [) a E, Y/ h. I/ t: y
8 i" m9 C8 D, r公仔箱論壇like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.公仔箱論壇# G3 { j# H$ F/ \; ~% r# G
: L* z2 X* L" E! ]1 W% L. xtvb now,tvbnow,bttvbplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas ! B4 m7 O/ J; S- u- B3 L2 X1 k9 I; R6 s5 s
where tomatoes were grown. / n) l U! I* x5 q# g N6 W1 h+ P
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. , j/ s# S; r( b8 A1 a8 J0 L7 TTVBNOW 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。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 公仔箱論壇& _, |( s' k& B2 v
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fungus from the soil to your 2 p5 c6 m* g; Y. w 3 m- h6 D# o n6 H! a; M公仔箱論壇plants. 8 V- B) u; Q5 ?& o x1 e/ v( M, |* x公仔箱論壇* J" K! {( k. O! X4 x; D- ?) P
Stake or cage plants to keep them tvb now,tvbnow,bttvb& Z6 G0 d! J$ O
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and * ~$ A, H O- [* w
2 q0 F* |% J: v3 U5 I2 Itvb now,tvbnow,bttvbcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of . L6 E7 p: x& R" O) Vtvb now,tvbnow,bttvb# C) k& Y2 G1 ]
space above the soil without any leaves. Do not use $ {$ o R$ u# @! p2 i' W
1 \- _ T) @* a7 d- U) B, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used \; i# }5 i% @* a7 e4 e
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。" X: M- _- _3 t% W- n: _
to remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇, ^- I6 N$ W- N
1 X. ]+ a' G7 J+ ^4 @5 z# h8 V: Ttvb now,tvbnow,bttvb & E; A4 b% L! i0 x! I( V6 w3 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。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。9 B0 w9 r: I; R3 V, n
5.39.217.77:88986 E) z6 [2 _# a: C" k
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato # |; x5 X8 ~* N/ [2 @ 1 b; V! N0 r" `$ Q* hplants in a garden. Once a tomato plant - D4 S% F: x' O- W2 d: w2 z公仔箱論壇 : r z8 ~# |) ]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。is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 9 w& B8 X! i8 f* QTVBNOW 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4 ]/ @( X9 K) C% ?) }/ N
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 blight3 @4 G& V0 f- A( y3 |) y! C6 m
0 h. @, @0 F8 `9 s+ @ can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and / `! J& i; u$ P( m公仔箱論壇 % Y+ X2 }9 _8 F3 m0 N% ySeptoria leaf spot infections will also help prevent late blight infections.
