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 / j% [/ ^* C; b5.39.217.77:8898 $ L. X; y% J, t2 T$ _% O# @. Y5.39.217.77:8898can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.77:8898% p; x* S8 c' }2 b% x
4 s0 m2 ~ a2 ^6 b" E; e/ `) d. E: 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。 5 s) Q( f/ m2 D4 r3 N% Q0 P; 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。How to identify Early Blighttvb now,tvbnow,bttvb9 I( t2 z& d, P0 n$ `
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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to , J7 N9 b& H6 l
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newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 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。. g b" U0 l& x2 j. K4 ^& S
( G$ _! ^7 L0 X4 v- V5.39.217.77:8898in color and form concentric rings, or a - c7 U2 u2 |1 o* M. v, ?- x! g1 ?* u) A
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 1 [2 H: K4 ?' T1 B& `2 ]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。 # h' J# V4 H& e6 K0 `! gleaves may fall off. Extensive loss / W( X9 Q; D$ {, e7 S7 ]! i# 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。 5 Q, l6 G7 |! y0 t( 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。of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇9 ^0 S' f) U! E6 w: ~: S6 L
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4 L4 ?6 _; o) c- w4 l( M; L( v公仔箱論壇How to identify Septoria Leaf Spot 4 C) W: x; s0 Mtvb now,tvbnow,bttvb 7 P& x; t9 H' A' b* y; gSymptoms of Septoria leaf spot also start ( P+ y; Z8 [/ }% D5 eTVBNOW 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. f/ u1 M% u0 p l1 J
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 5 r' _2 v, i7 C
$ y) g; _. n; I0 ?5 o公仔箱論壇shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 6 w4 |+ I. m( {" q 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。1 d1 m1 D) U, a; R
Small dark spots, the fruiting bodies of the fungus $ L4 f* m+ C1 t- g, C% z , O7 i\" x0 W5 V. z3 a- |8 M5.39.217.77:8898, 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。) [6 p7 V5 B' f! P! j. N1 G
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and dead. Stems can also become infected but # m( w# v5 A! J9 E. U: x6 X5.39.217.77:8898* m4 }: Q( g1 ?3 C& ^: }* T
infection of fruit is rare.tvb now,tvbnow,bttvb. O1 S: w, y4 p
# U) l4 H, Z& P. S7 T5 L" h# ]5.39.217.77:8898plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 5.39.217.77:88989 m( K3 x) c5 h: q1 C) B' m; k
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where tomatoes were grown." c1 ]% T! L4 A: b! Q; F
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. - _- a, d1 G( } q2 \Cover 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 N( {/ g. F& ?- Q
: I1 T! L$ T, N! x+ ]tvb now,tvbnow,bttvbfungus from the soil to your tvb now,tvbnow,bttvb) _( h( y( |- h3 E* _% U
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plants.tvb now,tvbnow,bttvb6 \4 Y% i4 h0 `3 |. |8 \0 H0 Q
% a4 D$ ^$ w4 s" D5 \* B/ x9 a公仔箱論壇Stake or cage plants to keep them 6 m& _! n- u; f# X公仔箱論壇 ( {0 ?: H# X8 h3 }0 r8 [* j% doff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 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。! o+ J$ g. d) f6 r4 z
7 a6 T- G/ Y! k( M( B: t公仔箱論壇cages. 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! B, t! W7 `- u
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space above the soil without any leaves. Do not use tvb now,tvbnow,bttvb. `4 m\" e5 p& Y i. D
$ ^+ n; X. R, y5 Zoverhead watering. 公仔箱論壇: i" n- c- J3 @% x/ G
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$ ~3 T) a4 C1 n2 g* O
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 ! @6 @& F. F$ I& L" ytvb now,tvbnow,bttvb . i) q2 }, s4 X/ ? 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。fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are $ `- w$ S' v. t- K v
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wet. Keep your plants happy and healthy. Weak and stressed \" ]1 H/ J- s; Y, q3 c4 _5.39.217.77:8898TVBNOW 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。! G1 X\" g4 ~0 s1 T
plants are more susceptible to disease. 5 C" d- F) n- j' V5.39.217.77:8898" ?& {3 F+ v0 M3 i
Remove and destroy or throw away diseased leaves, both off the 5.39.217.77:8898 h- V2 k( W/ R4 S7 ~9 d
( W* l9 Y N; j5 Mplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 3 ?: J) b: q# p e+ C' v公仔箱論壇/ k \$ U. n6 \) z3 L
enough. If a plant is heavily infected 8 ]% u- S6 O. K8 Y7 W/ ?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。 , L6 E3 e S- K* t& j, y9 a C, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 9 T4 s: z6 a$ f+ ?# S6 ^8 ^. l- }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。公仔箱論壇) C8 i! R4 Z6 X6 p* B
to remove diseased leaves should be disinfected before being used on a different plant.2 {; Q8 A' I9 P5 l( q$ V. a
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Late Blight on Tomato Plants 3 | d |* d, u: T' |tvb now,tvbnow,bttvbtvb now,tvbnow,bttvb) l' O# G0 I5 {- ~# ^$ K
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato & d* Y0 M7 j5 o k$ y4 p9 I9 _, |
' I) n6 w2 X, A2 z, bplants in a garden. Once a tomato plant ) x% i$ ]# T. K: i+ e# F( E5 |$ P* ~5 ~0 m# S
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, . Z; p, z9 X- _, Q* g2 J/ {, J# S9 Z
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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 & l. h+ e' L& D( [9 ~$ x( l2 U5.39.217.77:88987 X; i4 b7 L6 Z4 l5 ]% i! i can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 5 D+ E0 q9 ]$ V y0 z9 Y' E 0 {' x! T1 Q% jtvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections.
