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 * G3 I+ `3 k5 L+ e) i0 B+ i, s6 r# otvb now,tvbnow,bttvb* [# {+ T) Q4 h; x5 S) T& K
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.77:8898& K6 b) S' L, O+ S2 q, q, O$ a
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How to identify Early Blight+ n' d5 o' J; p) ?7 u1 T
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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 : o& [) P2 ]8 z( ^
' g5 u' i$ A, Z6 P3 |tvb now,tvbnow,bttvbnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.77:8898" m1 t, }) P+ x+ N& a
5 R' j& g* K' _6 b. L公仔箱論壇bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 5.39.217.77:88985 O( G- f$ h- C6 j% j1 Y
/ q/ z( S, }' ~3 N* z9 e4 v$ 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。leaves may fall off. Extensive loss 5 ? c9 E3 |. M* E' E0 B
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. " R, W/ Z6 Y% Ctvb now,tvbnow,bttvb8 }6 \' e7 U7 B( a3 s6 {
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How to identify Septoria Leaf Spot - F8 ]& P0 M6 n/ \, ?1 j3 ~& J) F2 Q) k d, q
Symptoms of Septoria leaf spot also start 9 w/ {( O8 T, d; f) u0 @( Y) x8 u
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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 9 U$ ~- }9 i! z2 E" @3 l
5 I$ I5 ~0 u6 l4 F3 J+ t: J5 x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. 5.39.217.77:8898 c4 c! Q$ [1 ^ c& x( J q
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Small dark spots, the fruiting bodies of the fungus# ^/ P7 ]: `( r4 u; {) ~
/ q' b4 S' a, H1 U9 n! @- l , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 3 d8 X5 E% y& t0 J9 E2 V# v! F! 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。公仔箱論壇% x* I' u" f4 S
and dead. Stems can also become infected but ! ~& O6 n4 U8 p+ t
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How to Prevent and Control Early Blight and . E* S# e1 S, k' itvb now,tvbnow,bttvb . Z, S+ q4 g( x- p- [5.39.217.77:8898Septoria Leaf Spot5.39.217.77:8898% U! b6 |" y( _6 M, w( E
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Follow the 12 easy steps below to enjoy a : t% W$ Y* l) q# u ( Q$ C' ]9 S, `& \\" Z2 [# }公仔箱論壇long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes." r3 g, ~+ p; `5 b
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。% V, i" _8 I1 l, I- \3 s: j/ D" _% _. B Weed your garden. Some weeds, 5 ~: |& w# \3 f
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb. D3 A% h6 t8 d+ K
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 S$ a' [+ z; X3 |( | Rotate crop locations. Don’t 5.39.217.77:88984 Z" L2 h ^+ S0 ^
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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 5.39.217.77:8898, O$ _9 |* O0 V6 _
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where tomatoes were grown. ! n" N; k% E' Q$ W 7 B' L6 Y9 |$ C3 m' 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。Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.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。2 Z: J4 D# W6 ]; ?
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 公仔箱論壇7 B2 v% U, ]* o- W4 K
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fungus from the soil to your 5.39.217.77:88983 l9 n9 {( W1 n {
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plants. " r5 d2 S6 B# H$ |9 ]& y公仔箱論壇 9 M/ ?4 F1 d `0 `! l- Z! S5.39.217.77:8898Stake or cage plants to keep them ; {' J: ~8 o5 Y/ D 8 e( @+ Q9 C- ~" _2 xoff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and / F" h' A, M+ Z K" B
% K' b. x3 l: i6 b0 t# Vcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 3 L6 u6 V- D7 W4 I3 `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。- ?/ T" q1 W. g( l4 f. s
space above the soil without any leaves. Do not use 公仔箱論壇4 y0 |% j5 q% Q, Q. n! S: o
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overhead watering. 4 Q; }/ A7 ]$ r0 L. O, L# Stvb now,tvbnow,bttvbAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 5.39.217.77:8898: g) v' Z! Y2 L4 u
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* r( |' q: ]7 N3 R
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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 5.39.217.77:8898! o l3 M6 I* r) z$ H8 G
5 b8 W0 N/ {; W, uwet. Keep your plants happy and healthy. Weak and stressed ) `# u$ X: m% x- |- h }% U. L7 p- Y: V. H
plants are more susceptible to disease.tvb now,tvbnow,bttvb- a$ u4 j) w3 g$ j" }
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Remove and destroy or throw away diseased leaves, both off the ' e5 o% Z\" a T0 j* l: U# Y4 \5 b1 E5.39.217.77:8898: [; m, r$ k1 O
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ; y( h& `9 d& J- i1 @tvb now,tvbnow,bttvb. c9 d1 [, z; r+ A( O& s4 c
enough. If a plant is heavily infected 8 l' i\" }\" b# L) @( m5.39.217.77:8898) m. f- _8 f0 A5 _3 t* M , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used # \* @& S; |* p# r( x! Q; D 6 d5 a: _# B9 F' z' k5.39.217.77:8898to remove diseased leaves should be disinfected before being used on a different plant. 0 n: j3 u5 r1 d& x$ R; j% \公仔箱論壇 ; O- X( w9 e: h! k8 o7 m; N' D* |" bSpray plants to prevent and control the ! A w7 a2 x/ X9 Z- [4 l7 ^tvb now,tvbnow,bttvb' I4 x/ `/ O0 P/ T\" T
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 7 Z' O* ]8 ?1 b3 Utvb now,tvbnow,bttvb0 R- I0 ]# \1 z, d# }" {5 m5 J1 D
GreenCure.tvb now,tvbnow,bttvb+ H0 ]7 L, @ f0 I. f4 f9 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。" V: q5 e) k6 r) X2 c4 O! w
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Late Blight on Tomato Plants公仔箱論壇5 m8 J# b4 I2 A* `1 \+ U
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 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。* i9 p1 n7 @$ o' H) _3 V
公仔箱論壇! y; ]( r7 m+ B5 S3 R. B$ g/ Z plants in a garden. Once a tomato plant ! x+ [; D, E f& s5.39.217.77:8898tvb now,tvbnow,bttvb' t, R. b9 r* j4 O8 q. [
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, tvb now,tvbnow,bttvb& P( f4 {" X( a% Y0 ]5 A% {
5 ~) z5 @! ?6 `3 z$ m7 u! @$ Hwater-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 + M p3 ]# [! h& G+ [: s7 jtvb now,tvbnow,bttvb& u/ F! _- w' U e6 P can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 4 Y# r: g4 N3 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。5.39.217.77:88980 r; s3 k; c5 L6 M% J8 E
Septoria leaf spot infections will also help prevent late blight infections.
