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 $ W% b& j$ A1 d5 t- E! p
公仔箱論壇, o# q2 Z' J5 C: F0 K" h
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb' n5 Y+ Y$ P& }
+ r% F2 ?1 w- J9 m& x0 L8 V ? _* r0 d3 e* ]( w" J7 sHow to identify Early Blight L7 R/ I3 r9 F/ l5 i2 t! y3 y - [7 E' `2 {. o0 Y# f9 X5 k$ l! USymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ) W( l9 L4 w% C5 U( K5.39.217.77:8898公仔箱論壇& U/ O- L, C$ d1 t7 D8 {
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown # A6 K7 \4 k2 \9 k& ^+ J8 H3 f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。7 a5 i2 r% p7 c# G$ l- a. q. `
in color and form concentric rings, or a 公仔箱論壇( t8 i; b+ P8 r8 G9 T$ ^9 i
& s# Y# @( }7 h8 a% R( E8 A& 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。bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇& C% @) z, X( [4 W, X$ u4 p
5.39.217.77:8898! M* M, N# n1 D$ P) ]! A } leaves may fall off. Extensive loss ! p v& p' F# q8 {7 i5 ^公仔箱論壇5 Q1 c( [) o/ c9 d% z
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit., B! j7 I: c* l& P- N3 |+ \5 \
( \. B3 d0 e$ ^: L. F' M
+ F8 H+ }1 n+ J* uHow to identify Septoria Leaf Spot 6 x" A! [7 S6 W8 \! h公仔箱論壇7 V8 `0 R1 H4 W F
Symptoms of Septoria leaf spot also start ' Q/ F# M& F4 U( U* {0 @ ' O: H6 e/ X! J/ N/ i4 F5.39.217.77:8898on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change ' A5 |% u$ h; K; P L+ 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。5.39.217.77:8898+ q5 [8 X5 j: z: b! Y- A' 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. ( u# [$ E7 k" r$ T6 |6 S Z公仔箱論壇5.39.217.77:8898* l- W/ T$ a5 y' o: ?, k5 Z$ E0 H
Small dark spots, the fruiting bodies of the fungus6 A- l/ s, ^2 B
公仔箱論壇( H/ [3 N6 _0 Q7 n J& l , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 6 S) Q' H# }; N" Etvb now,tvbnow,bttvb ) ]- l& C, t F8 e O1 [3 [0 P# dtvb now,tvbnow,bttvband dead. Stems can also become infected but : m1 i3 G+ ]# a! H1 @4 ~5.39.217.77:8898公仔箱論壇% B5 A8 G, y8 i ~\" ?
infection of fruit is rare.tvb now,tvbnow,bttvb6 a1 `( ^) `1 V j
公仔箱論壇. Y" X& a; p, t0 D" V
* r1 v3 _2 M( c0 uTVBNOW 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。How to Prevent and Control Early Blight and 公仔箱論壇8 H' U* p6 g) {1 x! H
5.39.217.77:8898\" Z# |8 w) N. q X
Septoria Leaf Spot ; c. Z' { v# K0 |" \. Z- x : N z# _$ W2 x/ \* H5 {0 u公仔箱論壇Follow the 12 easy steps below to enjoy a ! @' o/ S7 a( P4 J% N0 `5 e4 n8 ]
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. 2 T+ {9 \) Q+ X& aTVBNOW 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 k% |+ I P9 E1 X( C Weed your garden. Some weeds, 8 Q6 |, {1 R/ g+ A 4 A$ M! M0 B2 X+ F; T7 e# y' [9 O- ilike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. 5 L' s- c6 h6 H0 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。tvb now,tvbnow,bttvb: Y \: n2 X/ ]5 q" G% L, ~ Rotate crop locations. Don’t 3 N7 k8 T8 ?' s& \tvb now,tvbnow,bttvb! X& S: T' R% n. C: W5 W5 ]: Z d
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas - v5 \4 b5 [! r) L# Q, z ) `3 L# u$ v* s6 Z" B* p8 d5.39.217.77:8898where tomatoes were grown. / e( ?6 k( f# H, {" w5.39.217.77:8898 # l l$ ?1 I6 j% UGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.5.39.217.77:88982 n% Y; F5 l; \$ q+ [( v. F
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of * N3 U% x, v1 |: {( h
: M' S/ k- a/ R/ B) J* _' j
fungus from the soil to your 3 A) C/ k: ]! [公仔箱論壇 9 [+ P. W* C7 ^. u7 m! 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。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。5 C. ~9 h6 p5 D1 j- i4 B* w
% H z$ c1 ?* ?% e! Y
Stake or cage plants to keep them 4 M) k! s: q% M& r/ a- T' N& w7 l6 f5 U7 T! ]
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 5.39.217.77:88981 t1 S# D# e7 }$ `! X
: M: i4 k4 [, gcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of . q! a- l2 H# A4 S $ Y1 o+ h3 U h+ b1 E4 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。space above the soil without any leaves. Do not use 5.39.217.77:8898# R0 q, x: F( e/ t }\" `3 ]; S
tvb now,tvbnow,bttvb X( ^& T& b# i* z3 {
overhead watering. ) g% ~% z3 r% z8 Ptvb now,tvbnow,bttvbAvoid 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。$ w3 g' f5 Y+ \
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 5.39.217.77:88982 d9 V) A) B: |5 b: _% ~7 b
4 F2 y9 M' P7 j" }4 h. @6 mfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 6 G% S# D( H7 u* f `4 B% U
4 [/ ?, n) v6 v' H% B# x- ATVBNOW 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。wet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇& m( u g3 N3 H0 D8 o ^$ R. o
$ u) l, u4 r! Btvb now,tvbnow,bttvb, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 0 t+ x) I$ N. d0 \4 ? ( O- c1 X4 {: v# lTVBNOW 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。to remove diseased leaves should be disinfected before being used on a different plant.5.39.217.77:8898, `3 q- [9 }7 j9 P/ a/ p
tvb now,tvbnow,bttvb5 a9 \5 o- F3 o# B; v
Spray plants to prevent and control the tvb now,tvbnow,bttvb0 Y) J/ O# q9 Y* A% ]
7 j, y9 [- d! M e0 _+ F+ zspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 9 D! i# @' X6 Z- M* j
公仔箱論壇" q* e1 B$ K+ r/ V. L' O
GreenCure.公仔箱論壇) n# ~+ G6 C) q
tvb now,tvbnow,bttvb8 s! j# P% t7 W) `+ X
tvb now,tvbnow,bttvb1 i4 N# H" y+ X6 Z1 {# Z2 w* y
Late Blight on Tomato Plants5.39.217.77:8898; t( @# t+ P% u* W
公仔箱論壇: r" o9 x: f3 H I4 ?. C/ b
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 公仔箱論壇+ w# a; V- f5 S! O
4 [( z) R9 V. ]$ J$ S/ }5 r0 I plants in a garden. Once a tomato plant 公仔箱論壇! T- d! S0 u- C3 L
. i) H8 P$ e3 q& ais infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, : V( ]: g, q% K# D- d0 E' p3 \ . \; x" H$ t5 w% P5 }0 Wtvb now,tvbnow,bttvbwater-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 ( @, V; V\" a- Y; d' Ttvb now,tvbnow,bttvbtvb now,tvbnow,bttvb% N9 V; ~0 j; F can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and " i6 L/ p8 [2 P/ x& s, j
7 Y5 [0 K- M( R& W* G- g公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections.
