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 q3 O2 r# A6 l& \* b+ E: h6 M& n$ `1 C
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.77:8898) Z) m' U" ` {" M+ R
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" A5 g7 b/ t5 f8 y# \+ Utvb now,tvbnow,bttvbHow to identify Early Blight ) o# W# a6 r1 ^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。/ z) D' c" E) _8 k
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 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 L: L. G5 l' }: ]: @& \- P
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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 : x1 X1 ~5 w5 C& B1 @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。4 g: a, |2 Z9 {" ~1 l8 X# X
in color and form concentric rings, or a . e6 @% j\" i5 W4 y4 A5 r) B2 n
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, $ e4 h2 w9 R* P! i. x$ R$ z
' r6 P$ }0 l- v8 `* Y9 Y; d* pleaves may fall off. Extensive loss * a& N) w- m9 l) A F公仔箱論壇 ?0 |7 l* ]& e, `
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇7 J; a" H3 h. ]0 e5 q6 U
6 u* @4 ?* S/ x# |, Y7 H & }* ^6 T, R/ d- hHow to identify Septoria Leaf Spot3 C8 [( O" P: U, ^
) }# _6 w" s w% K2 v6 a; c5.39.217.77:8898Symptoms of Septoria leaf spot also start 9 r( o e5 s5 O e* k% m2 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。; ]4 H; n Y1 O8 E8 t
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 6 Z7 p# `; D+ T" C4 d/ }9 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。. a( O4 N; t- i# \
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. ' K2 s" E. n8 o: C公仔箱論壇( ~% l! s( F: W" i
Small dark spots, the fruiting bodies of the fungus ( l0 Y3 j: m* ?, R/ c 7 w o* T2 f! B- z( ]7 K* D, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 5 ~. z9 X7 ]2 j. K, ]! 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。 / m3 O1 m5 @- x+ H3 i' l( ` Tand dead. Stems can also become infected but , G% T) W( {\" f0 k2 \\" L, f. itvb now,tvbnow,bttvb , {3 Q7 z9 i3 m, B6 D8 O% n公仔箱論壇infection of fruit is rare.2 m& H, B: Q3 W" j1 S& k
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How to Prevent and Control Early Blight and / J9 o! m1 D! R: qTVBNOW 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。, d. O& g! _! ] q- d8 O+ {
Septoria Leaf Spot 9 M% z( {' N; Q" Q% f. K5.39.217.77:8898 * \7 E5 [" c8 L! v& g公仔箱論壇Follow the 12 easy steps below to enjoy a 1 \7 l$ J& T! m公仔箱論壇/ o2 q8 Y( }$ o( K& i
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. ; E- b. d8 ]3 q* |5.39.217.77:88982 R5 _' O, K; r2 j- f Weed your garden. Some weeds, - M9 _5 [, ~% B% ?8 H( S1 {tvb now,tvbnow,bttvb9 I. j% P6 e+ _2 v A- a( N
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. , F4 ]4 Q: O, b! w5.39.217.77:88985.39.217.77:8898# t7 X0 \: C: m2 ?- q( O Rotate crop locations. Don’t & y- p5 o3 u1 M7 O2 Q; z- B1 g5.39.217.77:8898) ~0 R( [8 q5 I H: A
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 6 O* K" d( O5 X+ R' y+ 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。 ' F4 [! P9 @! D; G, awhere tomatoes were grown.$ C9 t4 a; X8 V. p- C) N
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 2 W* {7 y+ h* {+ ]% X5.39.217.77:8898Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 5.39.217.77:88983 n- X" G, `7 S2 ^" X
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fungus from the soil to your 5.39.217.77:88986 K) d& L& v& }, Z
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plants. 0 r) [* }8 ?: |1 V" U5.39.217.77:8898 $ f) R+ w; }5 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。Stake or cage plants to keep them ) A8 u$ \" n$ {; R! m4 @3 { \# D. _: E- `0 f9 n& Q. q/ u$ K
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 5.39.217.77:8898, x: a: S4 P3 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。1 x q$ j7 w* C
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of $ K7 {! ~; P. a6 q! p* `6 i " Q) Y% I1 F0 v9 L5 i+ Atvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use 5 Q- R3 H4 `. C% h [5.39.217.77:8898 ( p# T7 ]8 m2 C2 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。overhead watering. 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 |2 ]: {4 B/ i1 X$ F
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 1 H1 i m! {. E ?! f# D7 W0 u4 @6 c
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 v8 [ d# {& ^5 O* b( Z公仔箱論壇. W, g6 U& q/ `- f7 M; l
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are ' U# p/ t$ ?( M2 x; b* Y& Xtvb now,tvbnow,bttvb公仔箱論壇" T2 y6 D' a- b) L: b# _
wet. Keep your plants happy and healthy. Weak and stressed % t5 P* j' a8 E - _; b5 i: y5 `: N' q+ rTVBNOW 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。plants are more susceptible to disease., e: A+ w% L$ v
3 C0 ?( O3 g; } @1 G: B$ {" oRemove and destroy or throw away diseased leaves, both off the 0 A! O H( @6 M- I公仔箱論壇 $ @' |9 M! g# M0 S- ?; T Atvb now,tvbnow,bttvbplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ) k4 [ u* Q y4 ^1 bTVBNOW 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。 " s6 c. H7 R8 I$ e; L/ n% i6 }2 OTVBNOW 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。enough. If a plant is heavily infected * C1 W1 O2 `8 e* k9 R, H5.39.217.77:8898 ) m( j: F9 r\" S* w% ~/ q, e, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 8 R' [! m! N7 u4 {; J U3 @# \公仔箱論壇5.39.217.77:8898. ~; Y# m3 T" z ~
to remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇1 [! i+ j6 e+ U
0 r6 c/ s$ y# l* m公仔箱論壇Spray plants to prevent and control the * P! ]4 n( Q u2 m\" 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。+ i7 x' a* D/ R7 a
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 9 _% @3 R+ a r9 t5 _. L+ G ( K* ^3 H0 `% |$ S. e- 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。GreenCure. / p2 y3 O& @( y+ h" I/ z' @# `0 c 4 `" L, x* ?. y1 m3 O$ Z5.39.217.77:8898tvb now,tvbnow,bttvb) z- ?& D7 z# q% f
Late Blight on Tomato Plants ; K; Y2 i5 {7 I, _. b公仔箱論壇 3 l' U' f" u6 ?: A% Z公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 2 m0 o) r8 W* u* W. b3 a8 O5.39.217.77:8898! k2 f+ s% T2 b& d& E plants in a garden. Once a tomato plant 公仔箱論壇! O& N/ Y4 N: \# X7 O. G7 d2 _
) Z+ T: B) w) ] o& B7 v2 z# etvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 公仔箱論壇8 b+ p& N* B8 o$ O4 b
tvb now,tvbnow,bttvb, I3 V8 \" B/ ?9 B
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 blight2 z6 b- y/ q5 I/ c Y7 K
$ Y& F' t7 O9 j can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 4 R W8 G7 t, j5 T6 w8 ~) @7 v, h2 o( L
Septoria leaf spot infections will also help prevent late blight infections.
