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 ' p3 O+ y0 ~* B) D公仔箱論壇' r [) G+ @6 T. T
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.2 ^+ {: P) t+ G# g# f' D* Q8 H
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3 Q! ~9 W' P G公仔箱論壇How to identify Early Blight ' G' y, R1 Q* w) p2 O% v, M G# x1 d% T: s2 l2 F: k* ]
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to - G# P; p- M. {4 ~2 |4 g: }tvb now,tvbnow,bttvb公仔箱論壇9 e' l; z' o; m+ X3 `2 S
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown $ I0 Q9 e7 ^1 u U% xwww1.tvboxnow.com; G2 B4 \; |. v# q% h. N
in color and form concentric rings, or a 公仔箱論壇2 L6 Q. v' c+ p4 C5 s6 _\" @) h
, J/ p' G0 F5 t) `. z公仔箱論壇bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, tvb now,tvbnow,bttvb- e0 R h/ V* f5 ]
8 q: S2 P, m' f公仔箱論壇leaves may fall off. Extensive loss tvb now,tvbnow,bttvb( ?9 b1 P0 v% c8 F1 Y; r4 p9 q
8 ^) Q, g4 ?7 }( ^& Nof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.tvb now,tvbnow,bttvb$ @5 F* i; ?$ w" c$ p* N; q
' c8 N+ T1 C. Ewww1.tvboxnow.com ' n5 z$ s" I4 C. _. M, f Y( iwww1.tvboxnow.comHow to identify Septoria Leaf Spot : D# D' ]# `# z4 r y8 N$ e% x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。% a1 v; t0 g' O8 h P
Symptoms of Septoria leaf spot also start ; F6 N% U8 N! W/ r% \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 h% Z% p* ~+ |6 a! ]2 T/ W
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 8 N& B+ Y9 t: f3 d4 M
# x% T+ ?, c+ F$ i6 o Ishape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 8 ?6 S& K# y% I- m x5 \% i1 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。 " }1 ]! n; v3 ?. Z% @* L公仔箱論壇Small dark spots, the fruiting bodies of the funguswww1.tvboxnow.com' M7 O! f- |1 z
3 r/ h% m% u; N1 _\" ?/ A , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry % b5 Q% M3 P# Q) N, {3 M $ d/ w& G5 ?* L% M公仔箱論壇and dead. Stems can also become infected but www1.tvboxnow.com, n5 B9 U9 P, Z! S$ ~4 ?& E, v
; ]* C" W3 M+ ?9 D7 C' V9 awww1.tvboxnow.comFollow the 12 easy steps below to enjoy a {/ V B0 p- z, g) d' a% [0 e公仔箱論壇* f9 r8 s( @4 M% u) A' @: b( w
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. 3 R0 h& W9 n6 g/ J9 n% \. J* Q0 z. o公仔箱論壇" d2 w# S' a- e4 \/ f$ @ Weed your garden. Some weeds, " C) g: O2 X; _4 n0 e9 X 5 R" w& b: i' Q5 v( [9 p9 @" Rlike 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。+ w/ u9 W6 i+ i# \0 E
$ I& x6 T$ h+ C1 Fwww1.tvboxnow.comRotate crop locations. Don’t # z' Z' ?& @- E: `* 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。公仔箱論壇, r4 G5 ]& S2 { Z, N
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas ; |7 I* T" B% t3 | ~1 nTVBNOW 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。 ; b0 |9 i$ S, X% A0 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。where tomatoes were grown. # w. c; L- j3 E* Z0 \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。, e0 g% [; e3 R
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.4 l2 q7 {. _9 k! {/ H4 `
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 0 u" B9 @- M2 w* `3 ?4 v5 NTVBNOW 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 A4 O) C" v0 _) J) E' n- v
fungus from the soil to your , G5 ]' e4 q W+ X) j n0 E5 l1 X! ?, s9 `& vplants.公仔箱論壇/ D/ b* K. Z. B5 |4 j, ]2 g/ ]
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Stake or cage plants to keep them 1 y6 q$ N8 g( D( x) }6 @5 [
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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 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。: Z, I% r, }% K& l
_9 f' l8 A: v& qtvb now,tvbnow,bttvbcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 8 V: v' x' J7 v! ~* b 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。tvb now,tvbnow,bttvb" t5 |$ J: u/ r" ]
space above the soil without any leaves. Do not use 1 B\" W1 c3 q8 _tvb now,tvbnow,bttvbtvb now,tvbnow,bttvb$ R6 s\" s\" F3 f3 B9 R, H7 I
overhead watering. tvb now,tvbnow,bttvb X: ^! r8 o" G; U" J1 D! t0 B
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. - d* t8 v: Z' C6 [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 " O: u+ I# f. i- e; A Q) stvb now,tvbnow,bttvb( S3 n3 K7 s& ^
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are - r- X& {" |$ L$ z0 | Xwww1.tvboxnow.comtvb now,tvbnow,bttvb" X# z. ?# ~4 U+ m+ S$ N/ ~5 T( i
wet. Keep your plants happy and healthy. Weak and stressed H( z. b8 y! S. K& V3 W公仔箱論壇 1 q4 w6 |% q! y7 `( \www1.tvboxnow.complants are more susceptible to disease. 7 l, ^1 M+ J, n k公仔箱論壇 9 e: U% X% z! l, U2 i5 K! |tvb now,tvbnow,bttvbRemove and destroy or throw away diseased leaves, both off the # {; V\" P# N% X$ h, e7 A8 cwww1.tvboxnow.com+ w8 I5 x: R: h2 ~
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 6 e! s/ ?& p& j ( G& O. o( a7 wwww1.tvboxnow.comenough. If a plant is heavily infected - R; A' B4 ^3 q$ ?) Dtvb now,tvbnow,bttvb' i! m+ G' o9 B! j2 q* G/ q , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used ( M5 @1 v, O$ ~" K) [5 O+ ^8 b
/ D2 P) X2 Y! x 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。to remove diseased leaves should be disinfected before being used on a different plant. . z* C; @4 h! J% Vtvb now,tvbnow,bttvb & B$ X! l, ~4 S% t7 O8 J3 A. D6 P4 ASpray plants to prevent and control the tvb now,tvbnow,bttvb' J& U# f7 @5 E7 Q
( n9 Z$ Z9 V0 I4 Z* Cwww1.tvboxnow.comLate Blight on Tomato Plants ' }, @7 v! `* U O2 O2 ~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,bttvb/ k* n- [" g6 I# y' B/ t( L- r2 x! n+ W
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato , d# b3 `0 e( J+ G
0 G) R; e0 K O- s& i plants in a garden. Once a tomato plant g/ D: F8 e; g# ]# R2 L公仔箱論壇 / f2 L& J8 ?7 v$ q5 h1 f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, ( q% s! S4 j+ `5 E/ ?, H) n" E, o# E公仔箱論壇& R+ I. J) [1 z9 g
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 [4 z# o' I m; g% U% 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。公仔箱論壇6 p, H# R8 ~9 k( @- ]# }' q7 h can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and www1.tvboxnow.com3 E' ^- v0 I2 q* r( @" [) A8 \
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Septoria leaf spot infections will also help prevent late blight infections.
