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 ! M8 E: E( F0 Y, B# g! P Qtvb now,tvbnow,bttvb% n9 P3 W1 Z/ b9 d
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 5 p+ ~) ^3 u# G! Mtvb now,tvbnow,bttvb * B. s M' H# Y1 |2 ^/ D公仔箱論壇 - @6 j4 T1 o2 x; Z/ Jtvb now,tvbnow,bttvbHow to identify Early Blight6 a* t" m" P* K) r- v# e6 e; }
) v8 C6 n+ n( A. C. U: RTVBNOW 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 early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 2 ?- ^( U8 m: B( [0 W" }公仔箱論壇0 z; C _% a$ | S* H2 \
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 公仔箱論壇6 f, y: u9 Y# b$ `
" @: m) K! J* Q2 Y |" win color and form concentric rings, or a + }2 z0 m+ R( a9 K
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 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 V* E! r* k* O1 \
+ s+ Y' @( G3 j* @' D leaves may fall off. Extensive loss r4 _" @+ C( A6 E9 f7 u
( C, y) Z* E- g% g+ T; e, x4 [! bwww2.tvboxnow.comof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. ! C: |) E+ K4 L6 ~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。, ~. U$ F1 m0 Q3 o- V5 l
* s8 H9 ~3 Y6 e- \0 m j6 _公仔箱論壇How to identify Septoria Leaf Spot ' f6 Y' ]0 [" ]9 v! j1 Y0 ltvb 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。7 O2 O/ h1 c- e6 I' U m- ^, }
Symptoms of Septoria leaf spot also start 3 y' r0 H% ^$ k% f) \tvb now,tvbnow,bttvb! N" Z! g3 y4 I6 Y4 |& M
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 9 R7 P( T0 G) q. o( ~) K, |& Q
0 Y6 a2 O4 u5 ~& ~% Zwww2.tvboxnow.comshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. & b* f1 A2 R, e% q! f5 q: z/ R, U* i& B/ n) {1 T
Small dark spots, the fruiting bodies of the fungus ! W3 p+ }2 I# V( C公仔箱論壇 ; a( z9 z3 f* Y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 . p1 T( ?! d5 v9 T. Gtvb now,tvbnow,bttvb& a8 O1 |1 P% T5 Y4 {4 A
and dead. Stems can also become infected but 1 U\" G; r5 o1 I- D公仔箱論壇3 T8 C) P9 C r# e3 h9 `
infection of fruit is rare. 3 _- j( h% p% M$ R$ I& 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。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 T# {: [# d d
* ]3 @! N( ?" H2 o公仔箱論壇Follow the 12 easy steps below to enjoy a ! e+ m8 J/ l$ v\" t3 ^
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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。' a! g8 l1 n- C; p
公仔箱論壇' g/ y- n& h% f T/ w( Z& u, u1 w Weed your garden. Some weeds, 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。+ U2 A0 u# B9 j
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.www2.tvboxnow.com% v8 m0 f# V$ A
4 \5 A' E) D) |: w# K+ }Rotate crop locations. Don’t - M$ e# y# @. x0 G5 S4 V' P6 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。$ m5 }) N; T) Q; t/ A8 V a) B
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas , |* k! ]0 B0 @
% s$ y; Y% l! i+ \% Zwhere tomatoes were grown. # a$ z5 F& }/ O2 l3 T( ^+ l' Mtvb now,tvbnow,bttvb - Q+ e4 I; j6 C. ?Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. + Q# p7 z8 Z2 }' XCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of * S# u, x. ?) s' @/ stvb now,tvbnow,bttvb 9 M" b+ P; _; c4 X4 T公仔箱論壇fungus from the soil to your 1 u# H& `7 _& ?* d4 u% Stvb now,tvbnow,bttvb; H7 y2 W9 H! \% e4 H( L1 y3 ^
plants.0 g# [7 m* v" Q+ l0 a- 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。7 i) l E5 E7 s* P0 R# z7 V
Stake or cage plants to keep them \6 v8 f5 b. H# U2 s 4 q3 T6 Z- c' r$ }www2.tvboxnow.comoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 7 O9 T) K5 f1 K; 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。5 b4 I* B5 Y+ ]/ a0 B( x
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of www2.tvboxnow.com( y# e* H2 T. Z9 E) \* l( Y# }
5 M6 e! {+ {; E. zTVBNOW 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。space above the soil without any leaves. Do not use 3 h/ W* \6 F3 v5 _ 8 |. ?+ Z6 H6 o! N; X( s4 m4 rtvb now,tvbnow,bttvboverhead watering. + }6 x1 h5 J+ h7 V6 ^2 G/ r# N8 eAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ( C* S, @* m* V" |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 4 c* ?' y& O: X" L: W5 U8 Q# n- a( z! t0 M k9 j
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are , k- n$ h5 t$ U2 }3 j) gtvb now,tvbnow,bttvb& i: N0 E4 B4 x/ u, j4 Z. V
wet. Keep your plants happy and healthy. Weak and stressed www2.tvboxnow.com* q* j; Y\" v( A8 h. A; B: n d: s
9 d( u+ _4 Q, N. P" vwww2.tvboxnow.comLate Blight on Tomato Plants! X a0 N7 z4 w2 d
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 1 E+ B, _3 J9 |" g+ z# t- btvb now,tvbnow,bttvb 0 S$ o% O5 R0 Jtvb now,tvbnow,bttvbplants in a garden. Once a tomato plant , a2 R3 N, b9 Z9 _1 Y, bwww2.tvboxnow.com& d5 w% i( [( Y, l4 F
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb) M- x$ s9 m! ?- R
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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 + [( w8 ?$ ^1 }\" nwww2.tvboxnow.com$ j# b3 b2 r8 |, D0 ~ can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 公仔箱論壇9 |) e* R7 ?' n" S6 K' a( p
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Septoria leaf spot infections will also help prevent late blight infections.
