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 ! ^4 N( ^6 R* u9 q/ T
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. * f; r# }) C E- F8 |& Stvb now,tvbnow,bttvb9 v2 y0 `" u3 U- p0 K
8 O& G9 k0 L j5 P; O/ @How to identify Early Blight & `: a% G$ ^1 c$ G* o; q公仔箱論壇 * W+ g0 k5 l, X' [3 _Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to k( J! R7 Z* w( E) H8 ?
* c; [# h# C! H* R4 X" Y9 l5.39.217.77:8898newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown $ E% V5 g, X9 }! X' P* ntvb now,tvbnow,bttvb1 R* F+ ]) \( i( N- a* A
in color and form concentric rings, or a ! a% B. G7 d. e5 e6 T+ L; o6 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。$ |2 B* L! c; d: V$ z
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 2 t2 } W) Q4 k8 Ctvb now,tvbnow,bttvb7 Z* j, [( c8 ^8 A leaves may fall off. Extensive loss 公仔箱論壇6 M5 q$ G. [" v/ `% ]4 ], W4 [2 E
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.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。$ V9 Y/ k/ U# V% r
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How to identify Septoria Leaf Spot - v( i/ @) Z3 m2 y& `, K0 @+ { 0 g* h9 @- l6 N+ JSymptoms of Septoria leaf spot also start 6 A. O( x9 Z* `/ N, ~/ f/ C8 e; H- }. y
+ w6 h k- ~8 C2 g公仔箱論壇on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change j$ x( H; S3 Y+ U& F- G& d
1 m! Y4 L' j8 X6 F% o3 _* w. ^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。like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. ; `4 H3 L; Y* C" [" k% g, F3 ltvb now,tvbnow,bttvb公仔箱論壇 M$ @$ v0 M; M9 k+ J Rotate crop locations. Don’t ! k* \5 R# V9 D& 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。 $ J- I3 S3 Z" E7 U+ F9 \公仔箱論壇plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 1 S/ k6 J) @4 w2 V4 x3 m+ Btvb now,tvbnow,bttvb 3 Z' Q3 @8 G2 y* X# V% H# N* Qwhere tomatoes were grown.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: k& M- \# F. ]- {
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 4 E4 E4 Z; @6 N公仔箱論壇Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 1 U7 E$ q% R% B2 _# e% ptvb now,tvbnow,bttvb公仔箱論壇- c8 e+ f1 |1 {& Y% g6 K
fungus from the soil to your 9 m+ {* R) i% A* ^5 V o公仔箱論壇& X2 }' X6 D* M3 |( m7 N
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。. r' r1 }& u9 D3 D& ^5 V
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Stake or cage plants to keep them 公仔箱論壇* n% Z- l% Q3 n- }+ Z4 J+ k
9 s4 X# S/ m& a$ ~, @2 coff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and , z: q0 r1 k; T0 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。 H8 ]4 _! l! ?6 q& v' e
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches 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。0 d" x) W ]6 y$ h4 ?& j4 R5 ?
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space above the soil without any leaves. Do not use tvb now,tvbnow,bttvb7 H& [; y& _& F3 `; z2 |' j* \$ ]& M
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overhead watering. 5.39.217.77:8898; H* M Z. o9 `* B1 I8 @
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. $ A$ ^, n! A. D5 j3 etvb now,tvbnow,bttvbConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 6 q2 P9 K' m, _$ j6 T) gtvb now,tvbnow,bttvb4 D1 }. n$ Q' S. X- `6 e
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are ' _) i. a+ k6 D) Y/ k& jtvb now,tvbnow,bttvb+ @' _( b5 c' T- Y* y6 X _. A
wet. Keep your plants happy and healthy. Weak and stressed 公仔箱論壇! H7 f8 Q4 B, _8 S) V$ N H
$ I3 o7 u( V. h: ~) M, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 5.39.217.77:88983 C' g9 r O+ m$ [' D. s. B9 c
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to remove diseased leaves should be disinfected before being used on a different plant.5.39.217.77:8898. f g5 r: K- [3 b/ r; N7 z
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Spray plants to prevent and control the 6 \3 W) X0 F* o- t: Q. o. a; M8 _公仔箱論壇 5 d( A* w3 }0 \- P6 _spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try / S3 G9 c% o$ Q* y+ J/ r0 {tvb now,tvbnow,bttvb + M4 G9 o4 e, c# E4 Ntvb now,tvbnow,bttvbGreenCure. ( T" o1 e! u& I* p/ F, Utvb now,tvbnow,bttvb ; B: z, K+ V9 K) q, p6 U公仔箱論壇5.39.217.77:88988 m9 x* z& L+ a* ]+ U; \: s& Q
Late Blight on Tomato Plants % y: Y6 p; [+ p4 q; X 8 A; F8 L) {+ o9 H; TLate blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 9 V6 C' J* u: f1 D4 L. x$ htvb 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。, N& Y: N% }; |6 s& i7 ~ plants in a garden. Once a tomato plant 5.39.217.77:8898) B" b4 q; H5 c1 }! `. e
) h5 H. g* N3 t3 @. `tvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.77:8898- k" @9 M0 |' K* y% F
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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 # E l/ B3 Z8 C' O# K) U/ c4 e & ~# p\" v; Y% j! ]5.39.217.77:8898 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and % ]( n" E8 B+ k8 ], [! G
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Septoria leaf spot infections will also help prevent late blight infections.
