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 5 T; R0 m, S$ J
: m: f2 p# W/ }' s; |1 MTVBNOW 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。can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. ( o9 Y) q2 `: a3 X5.39.217.77:88989 J2 J% m, ?, j3 f3 W; C
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How to identify Early Blighttvb now,tvbnow,bttvb3 @. n. l6 q. D, s# G, i) j4 q
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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 5.39.217.77:8898* U0 D/ p, |# s* Z
5 @0 S# }/ I6 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。newer 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) F( ]( v, i8 x7 x9 ^8 m
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in color and form concentric rings, or a 公仔箱論壇/ M* s, M w( b. l, V# z) D2 l
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 5.39.217.77:8898- Z( {0 x* p$ _5 x2 C6 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。6 i1 K0 w8 Q: ~( X leaves may fall off. Extensive loss / h) n5 l# V. v# 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。公仔箱論壇: O- Y& N9 p7 b4 J7 e- ^0 n$ X3 p
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. 2 v. ~. w: D4 a# J7 ]; }: z公仔箱論壇 1 N9 Y; H4 M0 M: O k$ ^6 N- }tvb now,tvbnow,bttvb 4 U- [: A, ]0 g3 B4 \tvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot ! ] `! }$ N' M: t. O& e* A" B公仔箱論壇 0 ^6 J" x; ?) E9 D' z% L) U7 X) \公仔箱論壇Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb) N5 Y: Q) S3 w6 A* f5 r
- z7 ]1 x9 T7 v/ M- jon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvb now,tvbnow,bttvb i3 D$ s' X/ ?
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shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. + s4 A8 B# m+ d% b: x( P
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Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb4 d b4 ^- m9 ?) b# R8 `; n
' b: f( D- j; B, @Weed your garden. Some weeds, $ E9 \6 O8 c: |4 M/ K- q* `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。公仔箱論壇2 e- _! D1 U1 y. g" e* N
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. / y! e0 ?8 @1 l5.39.217.77:8898TVBNOW 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。) B {% g1 n3 X( h% E. Q9 A Rotate crop locations. Don’t : ?/ o$ o5 r. D: `公仔箱論壇公仔箱論壇- a; ?# c, q! \/ _% D
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 5.39.217.77:88985 K- _, O( L+ r! k' r
9 l1 F6 R% Y# e' j5 i9 Ktvb now,tvbnow,bttvbwhere tomatoes were grown.% f# ^& `) p) V7 j; ]2 y
- R6 l% V9 u& Q& d7 l' R0 U公仔箱論壇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。+ \# N2 z! g; i3 V* B3 r
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb7 D+ `0 G S3 D5 b, m
: F5 h+ M9 @; Qfungus from the soil to your , ^# v7 E4 c" s" F( ?0 F: s5.39.217.77:8898 6 [8 F/ Z' u. Q" @$ ^# ptvb now,tvbnow,bttvbplants. ! k! ~% A$ E2 K+ J) T# C公仔箱論壇 0 o! u$ w/ O3 `% n$ C1 ~6 b# l5.39.217.77:8898Stake or cage plants to keep them $ x; A, z# l6 P5 i1 w; y
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 4 [% T; p" }7 s0 m9 ~$ N( h5.39.217.77:8898' X; m/ g. {, N! `8 t. S
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 5.39.217.77:8898' |3 d4 q4 | Y+ e5 \6 t2 \
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space above the soil without any leaves. Do not use # |+ k1 y3 u2 `$ @0 ^: c2 [$ M公仔箱論壇 3 X! \% b: ?5 koverhead watering. 5.39.217.77:88982 W# @, \6 D0 g. `) I4 A" K
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your 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。4 E! G P. C. J, w: ?0 Q3 Y/ g
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 ' |8 P; }+ h2 W! s: D$ ]公仔箱論壇' b O, R- p+ n% D6 i
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are & J3 H8 F9 R O6 `4 P" h1 S' I 2 ^5 U: ]9 }, A* E$ j公仔箱論壇wet. Keep your plants happy and healthy. Weak and stressed / J N4 L. n- W8 p0 y+ A 9 M$ y2 [\" C! h3 r公仔箱論壇plants are more susceptible to disease.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 K; P3 @+ N9 x" i& g: o
. k\" g* G0 h' f0 ]tvb now,tvbnow,bttvbspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try " D6 k! @3 [ a/ E N" I5 t M' }, o/ [
GreenCure. 9 `3 e8 e7 Y1 W; {! K) X. X. n: k) Y公仔箱論壇公仔箱論壇6 F7 r- t5 \" z; v" H% ?7 t
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Late Blight on Tomato Plants5.39.217.77:8898. f* \) t5 b' r4 x
H0 _ M, V5 l# \( S0 k/ X4 W: 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。Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato $ k, N! u ~4 `* r公仔箱論壇/ Z b6 @: `% x$ ~; t! o plants in a garden. Once a tomato plant - V. S" f: P6 p4 pTVBNOW 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- i; b/ H- v
is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.77:88986 p) r4 N% V j# g1 d* N
2 q/ X3 e! w& c+ {公仔箱論壇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 blightTVBNOW 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 U4 b# C% r; A% V$ z2 k
7 t* W* q% E; q! S3 g can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 5.39.217.77:88983 t# C1 c( f' L: w
6 t" M1 ?& ~7 r4 S& ttvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections.