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 ( v2 g( H) l n# J
6 I9 i3 J$ V9 @( v: w
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. % c3 s+ c; ]( K: M7 N5.39.217.77 3 Y. I6 o( `4 `, 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。tvb now,tvbnow,bttvb/ `7 C$ s$ i3 ^2 ^% V* ^; Y- d' B
How to identify Early Blight + Q8 _' S0 q& G8 c( S( A0 H' N& b公仔箱論壇 % |2 s/ e$ I2 t% Z1 z$ J5.39.217.77Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to % w2 w4 |+ x; o" E, o : ~9 g8 A# O4 Q& n5 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。newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown # B/ A2 Z4 t" @) e/ O' u4 C5 [5.39.217.77 7 J, {. [" K }& C# E公仔箱論壇in color and form concentric rings, or a 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。+ e2 Z, H% v% i# c' A7 I
3 E6 T# [: W2 kbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ) s. Y- {# L$ i- ^' c! j
9 R0 I% ]7 p# n+ C9 G. O) @, kleaves may fall off. Extensive loss ; I% d* ~/ i/ t* ?+ a9 |+ YTVBNOW 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。5.39.217.774 k1 g# h* U# p: o8 _
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇; o' Q6 k3 }/ ^/ u* X: L. [ i4 K" N
# ~+ ~, l+ T: i2 `tvb now,tvbnow,bttvb . `, f3 k1 v5 V' C2 f, GHow to identify Septoria Leaf Spot , c( i% p+ M3 V K1 O公仔箱論壇9 C4 m: n& k) r T1 p. e: f
Symptoms of Septoria leaf spot also start 5.39.217.773 ^9 X$ O( Q& t" \
' M4 j- [! U1 O- j6 m6 STVBNOW 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。on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 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 T4 ]- H% n3 Q
' K5 Z/ [$ V: X8 Y) e) g9 ^tvb now,tvbnow,bttvbshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. u& D- j t& c% |. B. K" [5.39.217.77 4 R) j8 L# `) Q; F5.39.217.77Small dark spots, the fruiting bodies of the fungus 5 ], H, f+ F+ c |公仔箱論壇 B* p& \/ p2 c+ H 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。, 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 Z1 l' v- x# k) G+ Q
9 n' {1 c7 k4 i$ T# Ntvb now,tvbnow,bttvband dead. Stems can also become infected but : b/ p3 U6 {* w+ V' X
( K- P1 o8 C3 T0 ~5.39.217.77like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato 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。' @) U2 P3 V; Q/ x! \/ b- A
5.39.217.77) V. N- `' z E+ E8 V, u5 v8 f7 I Rotate crop locations. Don’t 5.39.217.77* S- _" P! C; q7 z
9 b* n# B" I9 `( k
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb" W i# L& \- e5 p* 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。3 m7 s: k+ d/ o/ S( ^1 Z
where tomatoes were grown.公仔箱論壇! V% r. W9 m- P& T
# r& c2 q4 U& d8 W8 r公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 3 n5 c& p9 L5 Qtvb now,tvbnow,bttvbCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 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 l' p! g# k* {+ e/ D" ]. c
( E$ }3 A3 k' ~- D: g' q公仔箱論壇fungus from the soil to your " v8 g! `( a& ~! b公仔箱論壇' q; t- P+ s7 N0 m
plants. 4 E7 l, s4 ?2 x0 BTVBNOW 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。 + A) d9 L( `- B& w7 fStake or cage plants to keep them tvb now,tvbnow,bttvb0 C8 Y/ g/ G6 a% _3 n. O" m
) w; a7 w$ S+ I/ [/ i# t" a! n5.39.217.77off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and & P) S& ^& O0 X# ]# v6 m公仔箱論壇 % k* ~, {. ^2 s2 b' ycages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ' ]1 [* ?5 p9 K, {# k8 W4 D9 i; ` - @: J* y0 Q+ u3 {0 E. a' j: J; Otvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use * W; c/ @1 Q2 O3 g$ w5 W1 y* qtvb now,tvbnow,bttvb $ s+ e Y7 x2 N9 W' F! B9 Ztvb now,tvbnow,bttvboverhead watering. H9 W+ F5 V& ?$ p! _" @
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. . H3 |. X1 c1 K, P/ p9 ytvb now,tvbnow,bttvbConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 5.39.217.772 v0 |: {8 A5 Y7 ~- M. \; j
! A, h2 w) _8 O: B! m' Xfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 0 y8 A' j& ^# M9 [ j" H6 \tvb 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。2 k& V6 |% l. I0 Q' |
wet. Keep your plants happy and healthy. Weak and stressed 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 O* F, D- R- K\" D& N: i; o
% F$ X- W( x% s) o+ |) g; K
plants are more susceptible to disease. ! `+ Z; t/ k+ P. f; j% q% [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。 * `# n' m3 i0 f" t) c4 S# v |8 ?2 \公仔箱論壇Remove and destroy or throw away diseased leaves, both off the ! E+ `; s3 U j2 |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。tvb now,tvbnow,bttvb2 @+ T- P( Q. s# z7 \* x' m
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early tvb now,tvbnow,bttvb& c1 ]8 X5 C& ?* x" }0 y) m5 b! W Q
E* \, y+ f$ w+ v( J9 z9 vtvb now,tvbnow,bttvbto remove diseased leaves should be disinfected before being used on a different plant.5 Y( i5 b, m6 q
公仔箱論壇3 q6 y3 f# [. t
Spray plants to prevent and control the # j- K- q$ u0 r) V' u: r/ m. C4 W\" ~. p5.39.217.77 6 \% M; J7 e0 u公仔箱論壇spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try * Y3 e. k2 ]9 Y1 Q x _7 x4 Z3 ~公仔箱論壇tvb now,tvbnow,bttvb9 U; s5 u$ P4 Y( R
GreenCure.5.39.217.77- u1 c2 o$ {9 E
+ W2 v- R7 d- p* r1 n
[- Z; n7 }' b8 [. s2 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。Late Blight on Tomato Plants9 e3 k- y$ ?% F+ S. V
( P* h# l) R* s4 y4 H) jtvb now,tvbnow,bttvbLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato / v2 B+ f8 p/ Z I; r5 Z: K
8 K' e/ H/ D7 z' d8 S公仔箱論壇plants in a garden. Once a tomato plant 0 L2 K9 R) M; H
m5 a- F- u) R' b3 e7 G% @is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, . R. d5 X" V3 f6 Ltvb now,tvbnow,bttvb + ]* ~ _& S; uwater-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 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。9 i0 O3 E7 c0 W6 U/ C3 D
9 g; C& q% O; [; M Y- B8 z+ C公仔箱論壇 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 6 h+ F- o: l9 |% V) g- N, R1 X) [. O/ _& o; l. K
Septoria leaf spot infections will also help prevent late blight infections.
