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 % |7 p# k- ~" E" W- ?
$ J- y% Q1 X/ n
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 1 E1 J5 B- _5 ?# W1 N ! T" |1 o1 ~# q/ s7 I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。0 r5 L, g* E+ x) k$ }+ |* n
How to identify Early Blight & b. F% X8 x) `) Y: ]$ 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。) r9 f$ b! Z+ M6 ~
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to % C4 n' K% I1 t6 I( W2 F g7 ?公仔箱論壇' E5 N$ I+ H' ~6 D" h; `
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.77:8898$ x) w. P2 L! W! J2 S m9 v
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。6 x3 z& \* `7 j$ m2 X
in color and form concentric rings, or a 9 q( C$ D) ~- ~9 K- W / C7 A: N% W' }6 _) o7 W5.39.217.77:8898bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, , T/ z* R# _5 S/ O' T$ g( I4 ?5.39.217.77:8898 # F. F- I+ _8 l0 b7 {5.39.217.77:8898leaves may fall off. Extensive loss - _" K+ Z. W$ c0 ?" P d- s- |& v
5.39.217.77:88988 D& A, o4 Q8 ?6 l7 |$ a
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇# F" ?% K I# s+ D
* M b; T7 K5 {! P/ l% x5.39.217.77:8898 5 B' M" X- E- Z O" a* _# Q% }# o$ P公仔箱論壇How to identify Septoria Leaf Spot公仔箱論壇" ~' J+ V/ W# X0 ]
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。0 N p* a" c" I c- d, U$ Q. W0 ^) N
Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb, i$ `+ T* P/ W* B* B6 \5 J1 ]( n
6 \, B( V9 Q; D
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvb now,tvbnow,bttvb0 u( B S6 X2 K2 p6 i; x2 j
公仔箱論壇: Q5 S4 G4 K l1 b
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 9 B; [8 e/ r# G2 ~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。" ~3 V/ G* h) F
Small dark spots, the fruiting bodies of the fungus $ R. `( f6 K5 M+ M; N7 o * a3 f' g: ^7 f4 M, [, 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。1 f/ }- h0 n* i0 v2 G
. @) v( m0 z# w\" Z2 H$ I6 L9 u' Ylong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. ! w! f0 f# `: F2 s" g% n公仔箱論壇 5 ^3 ?' P: y- @ D, H5.39.217.77:8898Weed your garden. Some weeds, - m& |& [, I9 D0 b# z' @5 t- N
tvb now,tvbnow,bttvb; {" u7 k( }, L& _5 H
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants., J& R! ?9 e3 V4 | S
9 j, V* E. R. G$ ?+ d6 D$ A Rotate crop locations. Don’t 9 F. [! v- j9 S2 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。+ o, C% u9 ]: N \4 ]3 p# e
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas $ X. ]1 u& a$ r4 Z: v
tvb now,tvbnow,bttvb3 r( ^ z# J2 G7 B4 y" p) P# d7 H1 P
where tomatoes were grown. 5 @0 [. |( L1 y+ N3 \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。 % t- u) N& o7 j& }: Z5.39.217.77:8898Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.5.39.217.77:88981 N6 ^& |8 h1 G' L0 z
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 5 C- w/ P! V7 B f) U& a公仔箱論壇& `% r" l. n* w9 J3 E0 Q
fungus from the soil to your 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。& u& w& A" X" Q& t8 ^5 Q6 {" f
% h3 K+ G1 \7 Q G5 f
plants.3 { G/ ^8 ]# _
5 h2 j( h+ _1 [/ ~3 F
Stake or cage plants to keep them 5.39.217.77:88986 q; _- }; D" C8 X8 ]. j
公仔箱論壇: c& t. x+ M3 g, \
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 5 y/ A7 s3 ]$ m+ P" S公仔箱論壇 2 X7 n, J$ V0 u+ Btvb now,tvbnow,bttvbcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of / G5 K4 B3 u) a# [5.39.217.77:8898 / X) [! a6 ^: G4 L# [# V4 ~# g公仔箱論壇space above the soil without any leaves. Do not use $ z! d \# I; E8 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。1 v7 r0 C0 q2 x( S& I5 O' o
overhead watering. tvb now,tvbnow,bttvb5 M% n7 u7 m! L( K% i6 b, S
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 5.39.217.77:8898/ c6 j% s, t0 O4 u9 _: C
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 tvb now,tvbnow,bttvb( C2 S+ d& K8 g
l5 `0 |9 C$ ^$ f1 F ]1 \8 Z/ Etvb now,tvbnow,bttvbfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are ; P8 ^" d" x3 `) O4 M# m
公仔箱論壇( P8 e2 v4 a2 D/ y
wet. Keep your plants happy and healthy. Weak and stressed 5 [% Y* I8 @5 X- } $ U# f' p# z9 t# @\" tplants are more susceptible to disease. & P- N+ C3 x4 B, ?3 \+ {) L$ L( B# l ( ~$ U7 l4 o( H+ s) Y公仔箱論壇Remove and destroy or throw away diseased leaves, both off the 5.39.217.77:8898. I, r# r# ?3 v8 r9 u
" L0 t# U+ e. y) B- B+ D3 q; ^公仔箱論壇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。, [$ c# W& m" ?1 l4 n4 E
4 D2 r; B( l, 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。tvb now,tvbnow,bttvb9 l1 P! g/ m! B6 L: J% G
Late Blight on Tomato Plants$ Q% t1 y7 A. r! u* K6 J
1 k. Q' y5 W% C& G4 i8 d- F6 d7 Gtvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:8898! h& R* s; }9 _1 x" l
0 x; r( ]9 a, ?2 f公仔箱論壇plants in a garden. Once a tomato plant 5.39.217.77:8898+ D8 U; |1 K" [" E( y. t
% S" R* {. M8 z+ e0 G$ C公仔箱論壇is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 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。! E) L# t8 L. u2 T& C
% a- Y# f8 Z# s3 c% ^: j' vtvb 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% L* b2 y$ d+ U: A& b) |# M
+ c, [7 k3 N4 H can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 8 B- O! s) i3 U4 T1 Q5 P$ s3 H公仔箱論壇' T/ U/ d3 _; N N' w
Septoria leaf spot infections will also help prevent late blight infections.
