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 6 h2 P1 `" x9 \2 N4 n5.39.217.77:8898- m# [- h# D4 G
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.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。; F5 k% h/ {6 E+ h1 ?, u2 X& B
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How to identify Early Blight 1 Y# U# f+ D2 @公仔箱論壇2 u# e% W5 c2 _* H1 B, l
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to tvb now,tvbnow,bttvb: _& s! W, n2 }/ T- Q! V+ I
6 _; t3 }7 F6 b/ S4 J) o, R公仔箱論壇newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 6 y" X! e8 g& E5 C" p- O
2 I6 P$ g: J5 r, O) b4 Q# L" g3 ]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。leaves may fall off. Extensive loss - R i: ^9 J4 Qtvb now,tvbnow,bttvb2 _1 S ?" Z i _3 ]+ s0 _
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.. Y- O* c- @- u) i. B7 ^1 S" w) M
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2 W. i6 h% D* s7 ?5.39.217.77:8898How to identify Septoria Leaf Spot # R# O6 ?0 x+ }/ ~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。+ m( m; u8 c! h& L/ j
Symptoms of Septoria leaf spot also start 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 ]: }- b Y, p9 ]
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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 2 Y' Y* b# C& Y3 X# b, K7 g# b
" L( g0 J5 D% U/ |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. 0 I5 D! {$ P: x5 z" m5.39.217.77:8898$ l8 M6 L- t8 E$ o5 c% R
Small dark spots, the fruiting bodies of the fungus$ S$ o6 l1 x1 T- n+ @& z6 S( R
公仔箱論壇/ [0 c2 l5 S2 u, O , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry , [* `* v+ H5 E
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and dead. Stems can also become infected but tvb now,tvbnow,bttvb7 G9 q* `1 Q( M, j. o, X
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infection of fruit is rare. 7 Z" D+ x! S ~" }" \! v7 hTVBNOW 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。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$ _7 M t0 ~% u! d6 y; P/ F
0 t+ @8 N) H" g% O, V. g% d. q. s公仔箱論壇How to Prevent and Control Early Blight and 3 ]% Y, s. O\" ?1 J! i+ _
0 L& I! |. ^5 GWeed your garden. Some weeds, 1 Z2 w9 a. F* H. e/ u
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.公仔箱論壇, O! U/ r2 I4 t1 H
3 r! V4 z* ^/ rRotate crop locations. Don’t % A0 h( u0 q+ F: v3 v4 t8 `& W
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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 ( s0 d. g4 @0 N* A8 C7 V$ [$ _# 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。tvb now,tvbnow,bttvb" i- e( U. |6 l2 ]. k
where tomatoes were grown. . z+ \4 @: f2 ]# {' 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。tvb now,tvbnow,bttvb/ W9 N1 p. ^* N8 R3 w) N' Y
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.公仔箱論壇* X. D" ^3 `( ~' |+ v; z1 a
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of / B- [: j e& Z4 m. z: d, `
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fungus from the soil to your 1 U% I2 }. P3 j0 ^ g1 M8 q7 F/ 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。公仔箱論壇0 m. x! Z+ a8 P5 ?, ~# f
plants.公仔箱論壇; P' G W: ?7 M v2 Q6 p; {
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。- D- S. [ S* E- o
Stake or cage plants to keep them & Y$ Q5 Q9 a4 D5 P
y4 W' W9 }0 \ E7 Noff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and $ ^2 [6 M: p' t3 H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。7 ~! L5 |7 N) i% v5 d* T/ t
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of / Y7 H$ D- D# J; L3 H0 Ytvb now,tvbnow,bttvb公仔箱論壇% d8 c+ s6 X* Q! `
space above the soil without any leaves. Do not use 4 s6 }. X+ ^6 c. v9 r$ e公仔箱論壇 2 A6 g9 ^9 }8 R5 ?; k. b* yoverhead watering. 5.39.217.77:8898( }# c; C q5 w' M: b' P6 K' r
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 9 y" g& `/ A0 D: k! A" h
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 * q% B. P0 w% S" B% 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。tvb now,tvbnow,bttvb; ?# A3 }7 u; o, Z/ f8 ~- ]) r
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 9 B# e; p7 Y, R9 Z公仔箱論壇 # ~ Q/ V* i# }3 E4 f" F2 j, Y" @" lwet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇$ O7 ]3 S3 M4 X3 l7 p
( o\" _) ?9 P8 r; j- W3 d; ?( }, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used " X4 z$ H% ~+ j: N- L
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to remove diseased leaves should be disinfected before being used on a different plant.3 n% U% E3 |: |4 U+ u6 J
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Late Blight on Tomato Plants f% H5 @: z9 r' O$ B/ s
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 公仔箱論壇' j; i/ w4 y7 K" P' p9 f) z5 ^. B
/ _- i$ d# y- |: R5 HTVBNOW 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。plants in a garden. Once a tomato plant : o" F7 I7 V4 j; @6 I1 d1 |
! z7 g S1 o8 ~+ O' z0 o1 \tvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 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 K7 p/ h1 w4 ^8 P
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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 # I5 u, C& w8 W$ J ^0 rtvb now,tvbnow,bttvb8 s4 `' x4 k) P7 A& \: W can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 3 x3 L/ L0 A d3 h7 [9 }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* `3 t' a' Y% ~
Septoria leaf spot infections will also help prevent late blight infections.
