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 ! x8 h* ~# N3 X
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.77:8898" ~' T7 |8 ]6 D3 w2 A7 l2 A
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How to identify Early Blight( `& p$ {; m. e y
/ v2 t4 e4 O |Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 公仔箱論壇/ Z& G! a2 o. W9 X% M) V
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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 0 r; ?1 r6 ^$ ]/ R7 r5.39.217.77:8898 ) `' Z: X9 z7 @in color and form concentric rings, or a \" L2 b8 | ]7 q% N8 D\" w8 }
6 b! q+ q `4 G\" W' X7 @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。bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇7 B8 E+ p' K6 C+ A) _# L0 x0 R
公仔箱論壇2 `4 U# h1 D+ p leaves may fall off. Extensive loss - u4 t Y8 U/ Q- ~' b/ c( V
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 8 a4 B8 M. D1 I公仔箱論壇公仔箱論壇( b, k9 j. k7 q/ \8 H- F
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How to identify Septoria Leaf Spot5.39.217.77:88983 D5 w* p" S" C s4 u* y: f2 [
7 N# z! N& {8 G3 ?( f0 x+ wTVBNOW 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。Symptoms of Septoria leaf spot also start 5.39.217.77:8898, ~- b& h5 i, a! J/ R# x8 z# W9 ]7 `
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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。/ D7 y, s3 h% M4 b
^8 D/ \7 I r" x' A$ Z( V: C5.39.217.77:8898shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. / b/ N& w, [6 |4 F! ?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。5.39.217.77:8898$ Q# B- ?! s' D. l; f- j# x
Small dark spots, the fruiting bodies of the fungus% G( ]: R( [) d$ W( @% x
6 Y* g* v% s, D6 ?7 s: `) F! l公仔箱論壇, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 8 x% {6 p; n8 @# ^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。 & r' r. z1 {1 f; s1 G: I6 T5.39.217.77:8898and dead. Stems can also become infected but 公仔箱論壇3 q& t+ s9 j0 r+ D
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infection of fruit is rare.tvb now,tvbnow,bttvb c* `2 v) }- [
# ]6 J' K* ]3 f9 s8 J ? @Weed your garden. Some weeds, + m, K' X$ Y \( oTVBNOW 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。* `# C3 h; s+ ]( I- C% d
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. $ l5 l; x* t( ~6 Y5 M3 ?) k3 R# q+ ?0 s) X. l; p Rotate crop locations. Don’t , m1 ]" _+ s7 |5.39.217.77:8898 2 W z4 ~; I& Jplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 5.39.217.77:88988 q+ D& s z. r+ e
% p2 X9 D' N& {; P4 h7 ?: Y" S& VTVBNOW 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。where tomatoes were grown. / D: o, ^0 f5 F9 q& _) 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。 : G) j" F. Z9 w2 E6 h" z: 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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.& o! U2 r8 }& H# G: t
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of " f) p5 T3 \# G7 @3 R- vtvb now,tvbnow,bttvb6 O" _) H. _/ }
fungus from the soil to your 1 [- m4 c G& u: I# v ; q/ T3 C, j! p8 `7 a9 J3 Fplants. Q% F& N& T9 |) {, y/ L5.39.217.77:8898 . S) Q! p2 {5 {$ P! R( O. N$ o& ^* HStake or cage plants to keep them 5 ?, g8 e0 H9 L: f
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ; w/ c, Q' O& D" p! w# E) wTVBNOW 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 ^# Z1 y" D" L; Q1 M. k8 C1 j% ~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+ c9 u2 f* M* T) G4 J
1 c8 |1 _& V# J: Cspace above the soil without any leaves. Do not use 公仔箱論壇' i' y* m! u4 H
( _/ W* J4 y+ Z @\" P\" 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。overhead watering. 公仔箱論壇 q \% G5 J" t5 s4 j
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. . a- A8 q! O# ]4 @) t# WConsider 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* H; M% i& H& ~$ s2 E2 t8 E- t& m' J3 R
$ B$ W' w) @: Z* e公仔箱論壇to remove diseased leaves should be disinfected before being used on a different plant. 2 n* Y% U; d* t. b. ]: @5.39.217.77:8898 1 B( k. u; O# `5.39.217.77:8898Spray plants to prevent and control the 5.39.217.77:8898# H) t. I* K1 k3 d' v2 Z) _
) ^5 `4 O/ r7 N* p: x- E* z: N2 Jspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 公仔箱論壇3 E& k. C2 F0 _$ Y2 F1 B
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GreenCure. * X7 g" k! J8 v! Mtvb 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。5 s& J/ V8 J9 |2 s! s8 y+ E
) @2 a& G( g3 }/ h公仔箱論壇Late Blight on Tomato Plants; a$ V4 u5 [% B9 a' F8 }0 @
! U% N m# w! a1 w6 J* o7 O公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5.39.217.77:8898: U( r7 z0 I1 x N
* }8 c8 O; D- k# c plants in a garden. Once a tomato plant # y0 j# O. k- }6 Z4 e8 ~0 E1 C4 G. _' C0 R4 S
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, ; B1 H% z/ P5 |3 @
$ ]( C% e5 \& ?) gtvb 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 % H7 b/ X6 }& o } h6 o9 W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 n5 h7 {6 ~' I6 T can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 1 X7 K4 l+ q. G( `9 Stvb now,tvbnow,bttvb% w9 E1 y& N( `% o4 g
Septoria leaf spot infections will also help prevent late blight infections.