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 0 u) t$ U: t3 e! [ 8 V8 y3 N" S5 I4 xtvb now,tvbnow,bttvbcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas. / [* A" p8 t& g# G5.39.217.77:8898* @2 D& A7 u: T' M3 A' @" e
4 q( o1 j" u2 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。How to identify Early Blighttvb now,tvbnow,bttvb0 ^: P0 C0 `2 p2 t* V
# _5 [+ _9 _% v/ k0 e/ @Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to * ~& ^9 Z/ a: M7 T2 z' d4 n! t
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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 4 g/ b7 W7 f6 C, B5 i* [公仔箱論壇8 N7 B5 y1 A! K5 H( @, l6 G) u
in color and form concentric rings, or a tvb now,tvbnow,bttvb1 ]0 e3 `: l1 v- F
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇4 X* x0 S0 |; C( o- l. y, Y
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。" s( M5 R# j9 X; b leaves may fall off. Extensive loss ; Y( ~( l) T+ u, t8 ] $ R& g' C7 Y# O- O+ ^' R' cof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.tvb now,tvbnow,bttvb, _% B" p" w4 Y+ K! d6 ^
, l0 m: v0 {* j/ N! |' BSymptoms of Septoria leaf spot also start 9 @2 y; [! K3 w! A
, @% K5 B% u L: H U% h: Lon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change : ~6 H0 C) Y3 x" p: O0 D+ l5.39.217.77:8898 " ` ~" B% t- j& w W公仔箱論壇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。( B7 E% z$ F; Q' v" U: ^) Z. {
! M! t0 C3 R, |& |. }like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. * N* O, ?! |5 I8 I, C: K公仔箱論壇- w3 O) f9 h; S; g' I Rotate crop locations. Don’t 5.39.217.77:8898" T6 d) }% t' E- y+ T
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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 公仔箱論壇" U/ r; M( m6 f. h1 V! A
: f q( t* }7 g, [: [/ e4 |$ 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。where tomatoes were grown. ' Q+ B5 T V! k& x8 u5 U" O3 c/ l. q% |
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. , i1 M M" _9 x' r2 s5 ]; sCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 4 I0 l* C- g* v/ s0 T# t% o公仔箱論壇 6 H, I! v* _4 h6 q5.39.217.77:8898fungus from the soil to your 公仔箱論壇* N$ O ^. e; D
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plants. 2 k4 c: ], S6 x" U. ?& p5.39.217.77:8898tvb now,tvbnow,bttvb9 z& U: g9 N8 v" D9 s6 n) n
Stake or cage plants to keep them 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 f3 t* a( i0 O5 m4 v4 }
4 T+ B, l" A- ~: P9 y7 q0 y5.39.217.77:8898off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 3 {+ p! G3 Q5 E3 h9 p; v/ d: E) \: Z/ j4 ` l/ j2 w( u
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of # ]" K; ?& K8 A4 i. m1 Q! [5 T( E( E公仔箱論壇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。! h/ _ W( U/ s- w8 ~3 `$ ?0 S! a
space above the soil without any leaves. Do not use 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。/ W1 C8 E0 b3 Z# p2 u8 K
N\" D! V8 l' m* t4 }. O7 R: Joverhead watering. 9 K* {# h; x% a
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 9 @" w4 V( u! ^9 s/ N2 FConsider 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 N1 W% U2 o" A" N公仔箱論壇3 H, [5 f/ l0 f& l4 ^) y) X, s
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are , n m) u# ?4 P9 \% \: U- k4 T
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wet. Keep your plants happy and healthy. Weak and stressed , w3 E$ ~' E. f# 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。 7 N6 o1 d7 D$ Etvb now,tvbnow,bttvbplants are more susceptible to disease. G4 m+ @: j5 Wtvb now,tvbnow,bttvb . ~) c0 n( r, T+ {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。Remove and destroy or throw away diseased leaves, both off the 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。3 M( e/ \; l1 t
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ; w; u% R% Q, z C4 L公仔箱論壇0 o% S0 W d% ~. e' O
enough. If a plant is heavily infected $ i6 f: I7 h8 I A# ~+ e _, W公仔箱論壇 ( k/ n3 y2 u# E: ^/ l公仔箱論壇, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used % f. f+ K( z0 Ltvb now,tvbnow,bttvb ' W2 e: e% m/ T: ^3 e4 X/ Yto remove diseased leaves should be disinfected before being used on a different plant. : p, z- x, k+ S7 A0 _# E6 s# p . S6 E6 A) l M0 c8 q$ [7 f8 zSpray plants to prevent and control the x! ?( w7 j! ], e0 ?: M公仔箱論壇# U4 g( c6 b. d0 U9 t$ K; U0 g' v
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try : z( c# y" L) N, ?
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GreenCure. # m% j' o+ }, Q0 s: W$ p1 btvb now,tvbnow,bttvb - D4 ^- F- m# O1 }/ S T, t$ e# c1 V! a- ~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。Late Blight on Tomato Plants ( \. f" u% n! I8 b5.39.217.77:88984 C m2 C) E. | R
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato # T: m: J5 W% ?tvb now,tvbnow,bttvb5.39.217.77:8898+ h: s" H/ A+ N3 P: P4 F) q plants in a garden. Once a tomato plant ! C% i3 ^! y+ J7 zTVBNOW 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, v t* \8 q2 Y/ v4 C- t
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。. R$ X+ w! `+ t3 v1 e7 ~" _# f- X
* T) F( I8 b5 b+ Swater-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 ' L% }\" `, X8 B公仔箱論壇6 u6 S# u0 f+ _& L* p/ N can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and # [+ M6 F% p0 }& {3 a5 M* B( Z' o
4 v) l2 v, A# H& P k* pSeptoria leaf spot infections will also help prevent late blight infections.
