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 , M/ t, y* S* \( O- Z公仔箱論壇 9 }" y+ N( b9 ~( X* U1 lcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas. - t5 W# W# \8 I a. [0 @ " I X* H. j& K. Q" \2 B公仔箱論壇5.39.217.77:8898$ [% F9 z1 u6 A4 C( ^
How to identify Early Blight公仔箱論壇& w1 R" v2 m* m4 \6 q; g- [
8 o4 V) n2 i+ ~ u& T" A& w) f5 P' q
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 5.39.217.77:88982 L2 e- f' Z# N6 \. ]( w( i1 {
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。* j4 O/ g# @. x* H9 Q
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.77:88984 H; F L! a- @4 h! w
% w& p) t3 h- [# L1 P& ^/ M: I0 fin color and form concentric rings, or a ( Z9 ~9 J5 U8 h9 O r1 m4 q
; `' h' b6 R( @; U5 L( {
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 7 e7 M1 Q5 n( Z6 c i
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 V2 {: d% l6 E$ f4 ]% E( j! q leaves may fall off. Extensive loss 3 @$ U/ e+ j+ g
9 x4 {7 N. |; ^5 F
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 9 d2 w$ ~: F" `$ t3 I+ @9 _* N6 I! g. L$ [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。/ F& d& ]) F0 P6 a( D
% `. |. q7 [: t4 k) ]How to identify Septoria Leaf Spot & {. S8 R: J' N5.39.217.77:88985.39.217.77:8898/ d6 r7 b# k( F; K
Symptoms of Septoria leaf spot also start 公仔箱論壇3 K0 T( o" X) ~' g2 G- O1 Y2 d
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。& I/ Z0 d4 q/ ~' t6 }
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 7 f' M) j+ F! C% j- \- ^
2 z1 r2 q$ ?8 x3 e0 E U
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 4 n2 e0 [& [# `6 @ 0 J7 {# |( q% S s5.39.217.77:8898Small dark spots, the fruiting bodies of the fungus/ |: ~6 s' i, Y8 p( |* `, i
9 c# S6 o' o$ S& T$ t\" m+ YTVBNOW 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。long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.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 \" C% k- x: Y# a
0 x+ _- p3 U& ^5 r Weed your garden. Some weeds, 5.39.217.77:88989 z6 |2 [- l0 ]" W9 h) G. N
tvb now,tvbnow,bttvb! H/ y- K6 u' H3 w# t0 i, Q
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. * }% A7 {5 ^ u" ~tvb now,tvbnow,bttvb ! S$ Z: l3 X/ |, K公仔箱論壇Rotate crop locations. Don’t tvb now,tvbnow,bttvb; J; Q( |; n6 H0 P' V9 ^
) H" A/ |. E' e6 E! Y* U7 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。plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 0 r- d) k" F( P/ p+ [0 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。 , c4 R, n# h! U( j2 J; ^/ gwhere tomatoes were grown. 3 I3 u2 v( P) A! u 7 ]+ T0 w2 O/ h公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 3 a0 x, F/ Q* {! u4 f1 Y) @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。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 2 ]) [5 g7 Z3 i4 ^. Q4 s6 K
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。* ^& q/ }6 o" y! B6 L- H
fungus from the soil to your % H% p5 J' F% ~+ U / y4 G+ S k( T, r+ G- P公仔箱論壇plants. ' ^! L9 @. b1 \8 Z3 ]" a" 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。 ( W1 n: v6 V& o公仔箱論壇Stake or cage plants to keep them : d9 p. c6 T" ?0 u) e8 ^2 ptvb now,tvbnow,bttvb; Q U i; a/ y3 `7 T5 U4 n* E
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ( g; Q3 `+ c/ L3 `" D) h. H
4 ~, |) O3 p% i5 M) |8 a4 Scages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.77:8898" @% \* B( C5 d4 r
5 K# \" {* N4 J9 }' a* S
space above the soil without any leaves. Do not use $ p) E R& C& |/ Q\" D\" F: _3 K5.39.217.77:8898 E& k3 v: e\" Z( n U4 X$ foverhead watering. 4 k9 j( V6 U/ u* [ utvb now,tvbnow,bttvbAvoid 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! D: R5 f) ]% a( l9 W
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 公仔箱論壇5 G9 x7 W# x# Q9 @5 g: b4 U( D/ ], f
+ M: j9 ]# |2 k* c
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 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 h9 R- c( H6 y0 [# [8 T
4 h7 h+ D& s7 q# t, C' j0 U4 O! Q
wet. Keep your plants happy and healthy. Weak and stressed 8 `* z0 f2 I( F M9 ?+ V- O1 n公仔箱論壇 4 N0 [4 S1 c8 M S2 L公仔箱論壇plants are more susceptible to disease. 9 {8 V( b. S+ w1 h6 @3 h, ^% K : q+ l' m. T1 y. 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。Remove and destroy or throw away diseased leaves, both off the % \( K1 h- g$ ~; z7 x$ c2 p. W5.39.217.77:88980 e+ C# y$ \. l+ _
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early E$ W& R9 r+ S) d% m, |/ O& ^( n公仔箱論壇& o7 X; k; t& x! d3 K m
enough. If a plant is heavily infected d- f; p+ o) P/ j' \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\" R( n* |( E5 v公仔箱論壇, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used " L& B) d6 c! I0 Z4 LTVBNOW 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 k2 ~. R1 ?
to remove diseased leaves should be disinfected before being used on a different plant. # X' [$ o2 U8 [/ q7 R公仔箱論壇 - I ?. P! P; H% A公仔箱論壇Spray plants to prevent and control the 0 J! N* K$ [, j& x: {6 T- L公仔箱論壇* ~7 V. k4 T4 o, h6 z$ Q
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try : d0 R* V0 A' E" V$ m1 b公仔箱論壇公仔箱論壇( ?" y V5 c. i7 g5 A- [/ u J4 x c8 E
GreenCure. ( J) y% S! T6 ^0 t7 S公仔箱論壇 4 o0 _5 C! a% f6 C/ z5 z& A& [( h& D; R
Late Blight on Tomato Plants) V. M( v; f' L( M/ }% t% N/ g
+ M. c1 g* ?) 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。Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 9 c, p% T- E/ `6 g) {
, d2 @. h8 L2 E1 X1 m/ _plants in a garden. Once a tomato plant 5 y9 w# F4 U+ S
0 Y% H: Q! j& m8 r! [6 ?3 Y1 ^5.39.217.77:8898is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.77:88982 u# l" m- n0 f2 N. F
9 Y4 m; V' v; k# [% O* Cwater-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 blighttvb now,tvbnow,bttvb2 Y6 h0 ^& C' M; x5 T
1 q. R, p9 i( m5.39.217.77:8898 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and ' W9 w( m4 a0 k: V0 e9 j0 D' `8 otvb now,tvbnow,bttvb7 M8 V9 v5 n- G* ?' v9 i2 f
Septoria leaf spot infections will also help prevent late blight infections.
