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 v4 k3 {) I o" |
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.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。' d8 N' w& |" i. D5 c+ g3 K) z1 L
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" F; Z4 U+ G) f公仔箱論壇How to identify Early Blight- j5 c3 r B& T% c/ z W8 C
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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 + p1 e7 B% c2 r4 W9 j
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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 5 w2 E# G1 ?' p$ q( s公仔箱論壇. }. O- k; X7 F& ~4 @" [' b& a
in color and form concentric rings, or a 公仔箱論壇8 q) F0 O5 f1 T/ ^\" `! K, \6 s
9 a# h( A. n\" ftvb now,tvbnow,bttvbbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇2 A& a; X0 {. V, t, I$ @; w
公仔箱論壇+ K+ c# I" ?/ Z6 J. L- y' B leaves may fall off. Extensive loss tvb now,tvbnow,bttvb- q: G3 `* N, x
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 5 d. h1 e U% R9 R' l+ ktvb now,tvbnow,bttvb# c& p; q0 r; {0 Y8 ], e. y/ O$ Q# S o
7 z8 ~* |# a5 [公仔箱論壇Symptoms of Septoria leaf spot also start 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 Z" U9 ?! ^& E4 S' f
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on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvb now,tvbnow,bttvb2 K- X o( {: Z1 K+ N! x3 k8 `9 n/ y
2 D0 f! `; J4 z. ?0 H7 \( u' c% |like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.公仔箱論壇3 G/ q% f8 C& Z5 K' w7 b! y' @! a
* {1 b* f0 {1 x Y& F/ o* N& z) wtvb now,tvbnow,bttvbRotate crop locations. Don’t tvb now,tvbnow,bttvb2 K/ t9 s" M6 X. l* N
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plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas % m: z# V* ^9 w0 ~$ l% L+ g5.39.217.77:8898( E6 }7 H$ f" l* @5 @
where tomatoes were grown.5.39.217.77:8898) h+ d) @- ]$ u8 Y$ S5 v
+ J. i+ f* N- M4 F1 N5.39.217.77:8898Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb6 X) s N. G' a" o" R
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 3 {8 w6 A) N. ~) p, ^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。5.39.217.77:8898: A* T$ V9 v9 v. c& M& f
fungus from the soil to your tvb now,tvbnow,bttvb# w' L6 a7 E& x7 ` ?4 `+ g
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plants. # h3 o- I5 \# Y( 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。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+ v2 I" |4 ] Q
Stake or cage plants to keep them - A6 k5 i, w0 i 5 p, u' h. ^" D4 s- w+ p6 xTVBNOW 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。off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and / F% m% U: f. Y ]* J6 ~: _/ dtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb, {' s1 {0 ]5 |3 ?. m4 b
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of # N1 ~/ L9 F$ ?5 R9 T
1 x8 J* c3 P) o" sTVBNOW 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 - }' y; {1 g. g/ ?- b9 \( 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。 4 d/ H, d1 W8 Z4 p0 @0 e3 t- }overhead watering. tvb now,tvbnow,bttvb8 v5 H- l+ m& f3 \" T
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. " z6 ^5 U& b! l% k9 J6 X: G8 @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。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 tvb now,tvbnow,bttvb) B1 z4 b2 C5 M1 M/ @" ^
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fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are ! l) p# Y" U- W# k5.39.217.77:8898 $ e5 h% [% O: J7 uwet. Keep your plants happy and healthy. Weak and stressed / q/ p' g) G) O, Q: A z: F9 }# j0 [2 a* e3 X; gplants are more susceptible to disease. : ~& l. x' r5 ~公仔箱論壇6 ]6 Q4 P! ?6 x# r
Remove and destroy or throw away diseased leaves, both off the , s. b- J1 s/ A& [) H: g+ l- j5.39.217.77:88984 C7 j8 P2 W# p4 D: N
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 9 A5 ?, f6 M1 k# |9 c" F3 }0 t4 a/ l 1 @. E; q9 l( _* B4 |/ g9 k: L5 Aenough. If a plant is heavily infected公仔箱論壇7 x\" q7 ? ^! C2 Z- q% S! z: D6 W7 @5 K
5.39.217.77:8898\" B\" R+ z9 z. G. `5 m1 m , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used tvb now,tvbnow,bttvb9 T4 h& D1 g# M. v( U* C
/ V; y0 b/ I z+ Kto remove diseased leaves should be disinfected before being used on a different plant. 9 v5 c. }; A1 C4 G/ 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。 7 G- c. m3 }* NTVBNOW 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。Spray plants to prevent and control the 8 v( l# r/ w2 t& w% S& a3 z
' M0 b& f5 f; [8 r7 T7 \tvb now,tvbnow,bttvbLate Blight on Tomato Plants5.39.217.77:88980 D8 n6 F' P# _; P D. W1 C% T1 M
7 n. z( Z, k- f9 d2 B% ?Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato ! x, ?$ P2 `# b7 \ E( S3 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。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 Y- e C" X0 E& o% U U, S; P6 O plants in a garden. Once a tomato plant 5.39.217.77:88983 I" g7 i5 i* I3 i$ g9 c
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 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 h! [( R, _& T6 X: m5 U k! P% e
4 s- B. Z" S9 Iwater-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 7 L! e, D+ V& ]8 \: b. m! Ftvb now,tvbnow,bttvb 9 u* t/ M4 K s7 Rtvb now,tvbnow,bttvb can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 7 Q6 J8 T5 d, T5 U/ \公仔箱論壇 7 P" A2 A5 r! {7 D- T) FSeptoria leaf spot infections will also help prevent late blight infections.
