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 % z/ a# x8 A. ytvb now,tvbnow,bttvb5 [0 @# i- J" e) m" Y
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5 p* A7 c. ~ `
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How to identify Early Blight 4 r% `- ], V% ]- P1 g- M; Rtvb now,tvbnow,bttvb/ G! a1 i8 {# f5 x7 W* }
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' Z8 Y) }1 i W) F2 a
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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 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% l( S+ ~+ y7 t0 l
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in color and form concentric rings, or a / H) X' H, Y( |4 Z. itvb now,tvbnow,bttvb $ c+ \) u4 @+ H5.39.217.77:8898bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ) Z5 k: }/ L' J# g7 a n6 k公仔箱論壇 . ]) `; u. }5 d! qleaves may fall off. Extensive loss " Q% t- P- J7 O, [8 D' n8 O公仔箱論壇 ' g" ^+ J& \8 d2 x5.39.217.77:8898of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. T7 n q0 X$ ^5.39.217.77:88988 ?1 g; r9 Z7 X* [0 F. Z9 ~
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How to identify Septoria Leaf Spot 6 a3 j# C8 l' ^0 r! 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。 6 F: z0 o8 S4 }. m) f8 ?. gSymptoms of Septoria leaf spot also start ( ?6 p+ B" S |& J5.39.217.77:8898 ( e8 B8 c0 T8 i A: w% ~. Otvb now,tvbnow,bttvbon 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。: c) i# @4 n0 C/ L# C4 z
1 s0 d: X" b- Q. o" 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。shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 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。" V- r8 @# w" Q2 r/ f
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Small dark spots, the fruiting bodies of the fungus 6 p; u4 z% ^% R0 \) e- Y - u+ ~: ]. A2 C\" r- T) x3 I4 m5.39.217.77:8898, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 8 H# G( v3 ]3 h1 R% b! ~4 a+ 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。公仔箱論壇3 t0 O9 W8 D4 ~/ }! G- E# i6 x8 y
and dead. Stems can also become infected but 8 b* A$ r$ C+ u! ~6 v T! Etvb now,tvbnow,bttvb $ Q( H5 ] @/ N/ [* Hinfection of fruit is rare. 1 O2 s" T6 s+ Ttvb now,tvbnow,bttvbtvb now,tvbnow,bttvb4 @9 ]7 ~* c: Z2 P; G* N
, W- O% U; S4 W) V+ jTVBNOW 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。Weed your garden. Some weeds, 5.39.217.77:8898+ ^0 E% g/ n7 }! A
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.% @& A+ v* I3 n7 [, c8 e
7 j7 f9 o8 N: H. R/ o/ i Rotate crop locations. Don’t 7 Z: L; [6 |3 t1 h+ R$ j# 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。5.39.217.77:88985 W" |; L7 v5 f% | r# R
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 7 Q% l/ j" z' v$ o% ]; M & m/ R) y1 p, c7 x% ^tvb now,tvbnow,bttvbwhere tomatoes were grown.: D% s/ H3 r; l3 h/ v
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. ~& ?6 b+ d( k, D& _% pCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 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( g1 h7 ^) z0 o) v+ n
) e0 u/ L( J; S$ afungus from the soil to your 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。# ?& l% s7 r) K% J; i1 c# y' M6 p8 ]
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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。$ z7 K0 U7 Z9 H/ x: K' |( A* \
( e+ |; _- Y4 U2 g3 k f1 P( Z3 u; Q; Etvb now,tvbnow,bttvbStake or cage plants to keep them 4 c, m8 @* V8 `6 {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。 + b3 k5 u' {0 @. Joff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 4 X b" q6 j1 |' S1 l 9 g: c9 [" k' ^8 N) Y1 L* T4 jcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of + w# }- M! E, x3 f% E! M/ ]公仔箱論壇7 |8 d7 _0 `" q+ \7 w
space above the soil without any leaves. Do not use - ]. j. x$ G5 z. ?9 [8 cTVBNOW 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。6 G0 B\" b- L; n
overhead watering. ! G0 C! m: C7 o: P( q& i8 `
Avoid 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" [6 s+ Z0 S u: S* e+ Q
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 ' f; M4 L) B% k4 g# H7 p- 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。 ! ]: Y" v# K* F1 a5 `/ f0 o公仔箱論壇fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 3 T/ i* E4 ~$ E S5 V6 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。 0 a2 l5 ?6 y. j5 R' D2 A/ {公仔箱論壇wet. Keep your plants happy and healthy. Weak and stressed $ X% B2 X {1 H7 `1 t公仔箱論壇tvb now,tvbnow,bttvb5 S8 h: O- C+ G9 G$ i( @6 `: E
plants are more susceptible to disease.! x# i" M" |8 {. i6 O* J8 W/ }
" u1 g, f+ k2 r2 | DRemove and destroy or throw away diseased leaves, both off the 1 q5 A! a( `+ w
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 6 \& N. f: L/ A. B: W
$ g" n V6 H8 M# h5.39.217.77:8898Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 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) @. s+ u" u* G
3 N7 S% P+ O& C0 D5 b! Q( Pplants in a garden. Once a tomato plant 公仔箱論壇. L, d9 l% w, v
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, # B" c* S" @, ~0 A5 a* q8 A7 j/ K3 ETVBNOW 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。 6 ]) i# l4 O. i0 T* G A公仔箱論壇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& r( z! U2 m- s8 l
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。+ t) c' m8 [8 W. f5 c1 z can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and ; `$ Z/ h* _6 g K8 j0 t
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Septoria leaf spot infections will also help prevent late blight infections.
