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 + S& v. q9 ^( l; X, Bwww2.tvboxnow.com . Q' A( T! \8 O6 H2 ccan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.4 _; H8 }& n, y2 z; ], A+ m( P) a
5 a6 F8 {7 X' [: Q公仔箱論壇 . E. v( \- Q& j1 [How to identify Early Blight 6 B5 Y& l: b) K, Y9 m! R* o) ` # x5 f) ~7 H5 P2 k0 F! I公仔箱論壇Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ! W/ d! y" Q s$ I& [: jwww2.tvboxnow.comTVBNOW 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! U( K7 i" m: X- k
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown www2.tvboxnow.com4 X+ d) i0 C7 g Q# F
( {- c* A8 t4 A$ w+ n' Rin color and form concentric rings, or a 3 H. S$ R L$ X% W. D\" ?\" awww2.tvboxnow.com! a7 G# j& e: k1 ?$ m- z5 a
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, - L+ t9 M6 }. }- e0 X! V / g! M! ?% b4 G6 v8 ~leaves may fall off. Extensive loss , F/ ^8 X' W1 c8 u' B: C, @) y( Ytvb 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。, Y- t5 s5 \/ E1 t) Q$ o( _
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. * t, G4 k+ N# k/ Qtvb now,tvbnow,bttvb 4 O+ O0 O, e: 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。 & Y Z0 N( U' d1 Q6 i: pHow to identify Septoria Leaf Spottvb now,tvbnow,bttvb p" U! D0 h8 [9 v1 }
/ k' o* L8 g, Z' P6 X8 d$ d& i公仔箱論壇Symptoms of Septoria leaf spot also start g! O0 a* C& P
0 e; I# Y' J+ I% |$ ?3 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。on 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。1 ]! Z0 e. w; o2 Y% K
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shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. , G& u; S7 }. I& r公仔箱論壇% r6 @$ f# M1 K, s
Small dark spots, the fruiting bodies of the fungus 4 e5 s3 K\" T, C) Y: c公仔箱論壇 2 B8 h9 ^! o8 e+ z$ M\" rwww2.tvboxnow.com, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry a8 V$ ^7 { e. o+ z" Z- [4 q1 B公仔箱論壇 $ j( {6 u/ e0 p. Ctvb now,tvbnow,bttvband dead. Stems can also become infected but ( D5 L- e9 e4 f% s, s) Z' ]* {tvb now,tvbnow,bttvb公仔箱論壇3 o2 l8 B- f6 V6 T) L' T; o
infection of fruit is rare. # l( O1 w/ @9 x) [ Swww2.tvboxnow.com , f6 D) t1 ^% O4 v" i 2 b* Q s2 c/ z5 P* \7 U- HHow to Prevent and Control Early Blight and 3 y) O2 f5 q6 Y 2 D$ E% J+ A/ s) aSeptoria Leaf Spotwww2.tvboxnow.com3 g+ L/ q0 r$ E, D+ `- g1 F
$ E) m2 i: s/ x9 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。Weed your garden. Some weeds, : j3 {3 }- X8 n$ M8 c& F7 `+ V+ Ctvb now,tvbnow,bttvb/ G" \) r, o. M( b4 S3 d: }( t% ~# S
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. ; C/ Z7 q0 P2 r. d( J" xwww2.tvboxnow.com 4 F5 w7 V- P( F) s% K公仔箱論壇Rotate crop locations. Don’t ) z6 s1 P) b* z! T4 p 6 @- M2 }' V8 O4 v$ Y ]. hplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb" r: G/ J# i( ^0 D( H' v$ C
& p7 `" O4 b8 Mwhere tomatoes were grown.公仔箱論壇7 Q1 j8 y" H( c/ n n3 H- k
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.4 q( v6 Y. p, p! I
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 4 o" v: O# Q* `5 U9 P5 H公仔箱論壇! y" B& z; H& Z" E% P
fungus from the soil to your - {8 p) Z& ?- }3 T+ {( f4 I& w
4 X* ~6 P8 P4 k4 Ztvb now,tvbnow,bttvbStake or cage plants to keep them ! k* P9 N3 E( G: R ! r! b, i2 v0 A! X9 Ptvb now,tvbnow,bttvboff 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。' a' G+ t% I) ?. \2 S7 x
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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb8 l1 y+ h& P( M. ^8 G% a8 C
) h3 @# q8 P6 H4 w" @tvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use n3 B' E2 [9 b4 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。 . K: r! h1 N1 V, }overhead watering. tvb now,tvbnow,bttvb' J3 W0 [7 u4 c- Q8 {5 b m
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. www2.tvboxnow.com4 e, F# c; A" g4 z) z
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 8 O& w: m: H8 [! U; x! @8 C ' C# i. b C' |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。fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are + H7 o; B0 P3 U9 z: x
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wet. Keep your plants happy and healthy. Weak and stressed 5 E0 A& q; o! a- Y- L. ^\" X' b公仔箱論壇 , i) F& G' K6 I4 v公仔箱論壇plants are more susceptible to disease.www2.tvboxnow.com- f5 \; Y; h5 x
' e6 j( a5 a! O a: ^9 ?% ttvb now,tvbnow,bttvb, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used ( l6 W* v! Q, G# Q% x1 [
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to remove diseased leaves should be disinfected before being used on a different plant.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。- b+ ]) U8 Q; ] j, m
t) Y2 @, N: ^spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try www2.tvboxnow.com+ B _& l/ F8 s0 @, g; z
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! [, c: ?1 S! d
GreenCure.公仔箱論壇- `5 r6 Q0 I0 c" r* l
- A9 f! O. g- x* U$ k' J# @+ B公仔箱論壇 $ h5 l2 \, {: P9 l2 Dtvb now,tvbnow,bttvbLate Blight on Tomato PlantsTVBNOW 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。% K0 G. w3 a) V# A, I& X2 r: l
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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/ W( b& z# y# e3 f
tvb now,tvbnow,bttvb) c8 V* o6 K6 V" Z) W+ S9 k6 A1 \ plants in a garden. Once a tomato plant 4 d+ ?( c/ g* r7 `5 t# e- |- [ ' \2 n+ O* ]2 s( Z' a* [3 Ytvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 3 e) J# |6 H" W$ r公仔箱論壇 1 h4 t: T0 J8 V; Y# x$ i4 q% V/ mtvb now,tvbnow,bttvbwater-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 blightwww2.tvboxnow.com1 E' Z( s- h& ]3 E- p$ n
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。# W8 a2 }4 E9 [) c% s1 W: a can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and , Y) p4 I; ?, Y# 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。 # `2 ^" D5 i0 ~1 L: y7 q! h7 K$ ?tvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections.
