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 公仔箱論壇) J8 y6 s: F8 F: S) z& x
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb# U; f4 D& w6 g$ U; e
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% c* f) g/ Y0 c9 Y% KTVBNOW 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 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。' D! M9 J/ V; M
( [: K, a3 r, r" n3 _ ASymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to & A2 _, s0 J3 T- X. r' i! I0 X公仔箱論壇公仔箱論壇' p1 F9 q1 D+ V) f
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 6 \1 z& B3 [3 q$ Stvb now,tvbnow,bttvb5.39.217.77+ r( b8 j3 _7 U4 s s0 B5 O
in color and form concentric rings, or a + D8 I* e) W* d) V+ C7 y, t1 O& 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。\" K. Q& \. q! @- D6 I
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ) B- V( B) l: q+ G6 ntvb 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。( f8 m. ^, O, X S2 Q4 u* @1 j. ` leaves may fall off. Extensive loss L2 X$ R3 G# C2 b( B1 xTVBNOW 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。 + i6 x1 C7 \0 i' r5 ?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。of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. T7 W4 k! P4 _8 n公仔箱論壇公仔箱論壇( M! b3 N7 d T9 ?. \8 V+ \
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How to identify Septoria Leaf Spot5.39.217.77' r+ k5 d% w1 V+ A) k, P
. A, h% w2 C! d3 |* J* mSymptoms of Septoria leaf spot also start 9 x$ M3 C) h5 W7 {# X C; C5.39.217.77tvb now,tvbnow,bttvb0 o; Z; H5 @, |+ L
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 4 i$ ~# D B. D9 `9 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。公仔箱論壇 X; ]5 V9 E1 g. l; c
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. " F0 _/ ?, b, l. `$ `5.39.217.772 Z/ h! f9 ^( z# j5 ~9 v5 P
Small dark spots, the fruiting bodies of the fungus3 t1 `- T/ l( p* n
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 r* E. M& [# ~& G$ I , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 1 D) W% I6 S5 b1 z1 Y5 d+ { 4 E& o7 v" }# q' z) y) ]8 Mtvb now,tvbnow,bttvband dead. Stems can also become infected but : J' R3 T7 S$ U- R$ {$ A9 t( r
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infection of fruit is rare. % D7 ?* d/ c0 _6 @) b* X5.39.217.77 * D9 v" S* k5 G- D! D8 W公仔箱論壇 / P+ Z0 O8 V5 ?) [7 i, zHow to Prevent and Control Early Blight and tvb now,tvbnow,bttvb! J- d) q0 h, u( P
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Septoria Leaf Spot5.39.217.778 T1 Z) v6 Z5 \
! h+ ?0 p9 ^8 y( SWeed your garden. Some weeds, 6 _4 w" j- H% p! N$ @$ z& s
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like 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。; j/ V1 }4 N2 o+ m" x
1 V& x ^" b! V) p# y. c. \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。Rotate crop locations. Don’t 公仔箱論壇$ P7 T4 e7 V1 V
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plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 0 ]8 x3 E# x9 d( z: [7 v! @, X; {
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where tomatoes were grown. 4 {+ Y S# T' l9 m3 Atvb now,tvbnow,bttvb 7 a' ]- r( @' D9 R: @Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.5.39.217.770 }5 \* \% _6 p* P6 L
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of , f* d$ S, F1 k: ^& R. a$ C" v9 ?2 i: Atvb now,tvbnow,bttvb 2 L6 v3 r; ~) z Z! c+ A4 d8 k7 g( k' Dfungus from the soil to your ! Z5 x6 r* L% x3 b
2 D F" @- n5 k- zTVBNOW 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。Stake or cage plants to keep them * M$ ? ~0 N @$ `1 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。 3 Y; `/ K. b1 i6 {off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and & Q. k8 u0 p4 |# H# [2 @tvb now,tvbnow,bttvb / W2 D$ C. M6 v3 Z/ {: ncages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 公仔箱論壇2 U+ i6 Q) Q) c! E* f
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space above the soil without any leaves. Do not use 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。9 n4 p# b. o* j: u! D9 l\" _
% N7 @1 n* ^- m2 n% ]Late Blight on Tomato Plants 7 _% q: {7 ~ n" @! ~ # m3 P# u/ [4 s f; rLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.771 y, T1 L% ~& W1 N4 p! ~* n
1 |) l: u8 U& h1 p) vplants in a garden. Once a tomato plant 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 y" z+ S; `! k6 R6 T3 u
7 ]- L7 V% r" W* b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, . h d. d# r( P% Y
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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 blight 2 W% J0 z$ a2 y' Q! I9 }- 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。 # h, L# K+ D9 d5 B, D+ ` can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and / R" c- a" ?" V+ l' r# c
, T5 f! @* W4 ESeptoria leaf spot infections will also help prevent late blight infections.
