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 % `7 H) v, b; B8 V) j: p$ Iwww3.tvboxnow.comtvb now,tvbnow,bttvb+ z, Y) \1 F5 M5 |
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 6 b0 G, N6 n3 ^ `9 x: |www3.tvboxnow.com ) `7 g- D. A8 B& V8 nwww3.tvboxnow.com . `2 h5 o5 F) L2 `How to identify Early Blighttvb now,tvbnow,bttvb( x) x8 z$ S7 G
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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to _" P& k3 D& M1 E公仔箱論壇/ [& |: ~4 s Q8 z
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown " b$ D( `/ c9 ?; m0 M- _- T$ Htvb now,tvbnow,bttvb7 Q& o/ ]1 a! O! O$ @4 I
in color and form concentric rings, or a 3 x' D, q4 N4 s: A8 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。公仔箱論壇3 Q X% p* h4 D7 e1 Z
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ; y( G0 F g t* F
www3.tvboxnow.com2 Q6 ? X# I$ y4 w$ { leaves may fall off. Extensive loss www3.tvboxnow.com4 f; ~9 G. R$ C
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.$ Z. W/ T* Y8 ^2 b7 J; A. q N) y' e
7 `! r7 f g/ K1 Ktvb now,tvbnow,bttvbSymptoms of Septoria leaf spot also start / ^6 s4 j t0 H( E( T9 L8 D6 wwww3.tvboxnow.com / n- _9 S( G' k) K+ r7 s; fTVBNOW 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 / M* e6 X2 K5 t公仔箱論壇 / j8 _4 N: C2 c/ m4 Pwww3.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. 4 g1 s& `# t- [$ U* w
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Small dark spots, the fruiting bodies of the fungus: v, a, Q- O. d* ^& d
, x, c1 U+ E/ Gplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas # A4 B1 r8 i3 t( |0 l
# q& v9 H& W9 qtvb now,tvbnow,bttvbwhere tomatoes were grown. 1 ^' V: |5 w1 Jwww3.tvboxnow.com 1 F& U, |2 S5 e/ c0 \3 P _tvb now,tvbnow,bttvbGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb6 `0 b/ }/ F" ~( j/ I& F- y4 m+ b
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of - C" N! a( ~9 v5 |* [4 _
tvb now,tvbnow,bttvb$ f4 k: X5 I) J4 Z% h$ `2 h3 W
fungus from the soil to your 9 P- C K# P2 Z; @' t: Mwww3.tvboxnow.com5 }* P6 K3 H% U& h! N' |
plants. % P1 @" i* ?) 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。6 n' y0 b6 p0 W
Stake or cage plants to keep them ) a) S7 A% @8 ~2 M8 E4 ]5 Ktvb now,tvbnow,bttvb . O V5 K3 v5 H- Ttvb now,tvbnow,bttvboff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 7 z. F- V2 g D
- A/ X7 x- {9 O/ |) d3 x& D4 K公仔箱論壇cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 1 [) S% X6 ~; ]& P& \4 | O# A' X9 k& H2 R公仔箱論壇space above the soil without any leaves. Do not use + T& ~1 m4 d6 Q9 |9 z% I
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overhead watering. & T! |3 H3 m4 Z# r! o公仔箱論壇Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 公仔箱論壇9 p, e" p% h' S) 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 公仔箱論壇 B6 D$ S. X) g& j$ t: Z9 u
+ a+ e+ z, a) i( U9 f, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 7 i& ~; o: K3 m2 u/ KTVBNOW 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 P* w" B8 d7 V( z9 M$ Q$ C
to remove diseased leaves should be disinfected before being used on a different plant. 5 S8 s$ G: Z8 W; |) g公仔箱論壇8 k& \3 r N+ r8 r
Spray plants to prevent and control the % v, L1 d9 I+ @1 T: @ - n) k7 C5 s2 N\" K' Ewww3.tvboxnow.comspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try www3.tvboxnow.com8 O4 \3 V) j! ~- Z |
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GreenCure.www3.tvboxnow.com' B8 ^% R0 v+ [ y( }: T; C5 c
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- {2 B6 c# B J: R6 }* x公仔箱論壇Late Blight on Tomato Plants 5 S P8 ? a7 V- c8 N. Q0 [9 s# ~www3.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。; V3 S9 Y9 a! ~' E/ o. o
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato . s' O4 E2 l' z |/ h
公仔箱論壇4 m4 d: c3 y3 z5 V plants in a garden. Once a tomato plant ) A- P4 i: K R9 q7 u+ a& g: T
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, www3.tvboxnow.com9 H- V6 c; `/ c! @' _' m
9 C. \# c0 ]2 L, F; 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。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 / C: l1 }; U% b5 |: n% G公仔箱論壇1 ?- z\" s( i! p/ h3 i0 T can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and s2 c9 `+ @8 \* G6 u0 g5 y公仔箱論壇* |7 h( w+ ^$ A6 P
Septoria leaf spot infections will also help prevent late blight infections.
