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 ' O4 v7 v+ ?; y! m. U; ?9 k
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 5 h, h5 A5 S8 c+ U% ktvb now,tvbnow,bttvb) }9 {) A& u) l/ X
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How to identify Early Blight5 K" {4 f. g: @& E
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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 3 S, y- @) a7 z; T/ V/ x) ?
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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 ( s% @# v! N t7 l公仔箱論壇tvb now,tvbnow,bttvb% ^/ t: }6 R* g$ r' s% ?7 L0 x
in color and form concentric rings, or a + x( ]7 t, ?' O5 E& |4 w\" H
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 0 b/ X" Q9 V* m; \% x8 ?7 O9 Stvb now,tvbnow,bttvb, i9 u' C# c; }$ O y8 d$ g' k4 s4 y' i leaves may fall off. Extensive loss ! g* T' v- \% s& s- _ ; j' v$ d+ N0 f" q7 A- u公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.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- o" M/ Z& i' T. M2 @
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How to identify Septoria Leaf Spotos.tvboxnow.com% [% A c. X- L
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Symptoms of Septoria leaf spot also start os.tvboxnow.com! K+ {8 v/ W6 |$ S6 Y" _& U! m
/ ?4 E* h' I1 G6 C6 w- Z( Vtvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 8 h" M, T3 [- b& L* Y6 C* ytvb now,tvbnow,bttvb3 j2 |7 c5 g! p& s
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. $ B7 S* C9 G: a6 }, {( q) U0 f, u( U+ [6 `; y
Small dark spots, the fruiting bodies of the fungus& g/ n }1 F8 E5 h/ v5 e% L% K
4 U1 R3 W3 u/ P4 K3 b+ a gtvb now,tvbnow,bttvbSeptoria Leaf Spot ; \; D9 R/ _- |8 P+ E- q公仔箱論壇' [* T% Q6 @) E. f1 {7 d* n; }
Follow the 12 easy steps below to enjoy a ) f\" l% O\" K4 Y+ f6 C$ wos.tvboxnow.com % i! C8 C5 F0 F. Ttvb now,tvbnow,bttvblong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. $ b6 g# B3 p( }- l& i4 f/ p公仔箱論壇os.tvboxnow.com, w" H. E* m( q/ Y! m3 ^2 X8 A% w) M Weed your garden. Some weeds, $ b( `- W/ [2 e8 f S% n; e* J/ F" K# Yos.tvboxnow.comlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. & Z2 a4 O% e: V$ \# F1 Z. p/ Gos.tvboxnow.com) \: r& c; s) U. y @ Rotate crop locations. Don’t 3 z" z( b$ _" L0 Q / a: [3 B1 F6 ]& p8 @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。plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 3 C3 e. U# }& F9 ^% h+ x
4 _5 q& R+ B; d) N wTVBNOW 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.公仔箱論壇/ c3 ^+ @0 r0 O- q
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb/ P( c) `0 w. {9 u8 B6 B
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of os.tvboxnow.com' I# |- g, g; ~; @
! r I- c# O5 c+ T9 ~tvb now,tvbnow,bttvbfungus from the soil to your 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。! J/ ?0 Z* R% O* m* `
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plants. ; H+ }8 }% \+ n0 G# z$ L- [7 zos.tvboxnow.com: t% m2 J3 m! ^2 ^: I2 |) }: M
Stake or cage plants to keep them - _) D0 {9 I4 H7 A公仔箱論壇os.tvboxnow.com4 O) B, V& l J9 G
off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ' C: z- [2 O; @
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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of os.tvboxnow.com; O( D! {) J* i/ ? ] g* }
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space above the soil without any leaves. Do not use ' e/ _* g# _8 z3 X+ ~os.tvboxnow.com 2 _$ A9 m% R! r4 e, N: ]overhead watering. + Q' c9 {3 W( _8 Tos.tvboxnow.comAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. , I" C' t! \2 N' @$ t: pConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow os.tvboxnow.com! d5 u `; l9 g! Y
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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 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。* X5 H8 M, y4 t) x3 \" N
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wet. Keep your plants happy and healthy. Weak and stressed 4 v! W& ?* `! t0 |7 ?os.tvboxnow.comTVBNOW 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; G0 @) x2 _1 O
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。 t- x, d6 a7 R: g" a0 I; l
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。. Q2 }% Z4 }- x
Remove and destroy or throw away diseased leaves, both off the , H( w S, [8 L\" i4 I+ Stvb now,tvbnow,bttvb\" |1 V% g$ o+ R) X9 A; w; _
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early ) L f8 p# i) s& `2 Jtvb now,tvbnow,bttvbTVBNOW 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。. X2 P( P( L! L7 |9 v' D
enough. If a plant is heavily infected, L\" n- K: z. `. T. M
\" F\" r# ?$ u6 _& Z% G$ Q% K) H1 ]6 o, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used tvb now,tvbnow,bttvb, G: F! p8 {$ m- l4 W
2 N# T$ a) j6 n p% C5 O! A- Ttvb now,tvbnow,bttvbto remove diseased leaves should be disinfected before being used on a different plant. ! }: a- l d# k6 F8 Ttvb now,tvbnow,bttvbos.tvboxnow.com" J+ u/ t% \- v, r
Spray plants to prevent and control the + F' @. g( j7 S. x4 R u公仔箱論壇 # k s b! m' J8 j8 p& I公仔箱論壇spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try f$ G5 t/ w* B) v# {) ~" e9 S( 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。 * Q% S4 D6 z. L* B9 I公仔箱論壇GreenCure. 9 n) U9 B1 t0 n( o* D0 Mos.tvboxnow.comos.tvboxnow.com0 i+ }: D: X0 N4 V% d8 K: a
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Late Blight on Tomato Plants % k; G+ r1 u. P, B) nos.tvboxnow.com & f+ a+ Q4 a0 X, r" 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。Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb. [ r N. @3 G1 _
5 U ]; P, V6 yplants in a garden. Once a tomato plant tvb now,tvbnow,bttvb8 ]8 `8 c. o. T4 [* W! p% M
6 k" ^- \, e9 m, R2 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。is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, os.tvboxnow.com9 J0 a F+ Y% t# u0 {
# Z( h4 l; ?7 d4 J, o+ \' G5 y5 Xos.tvboxnow.comwater-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 blightos.tvboxnow.com' u6 U6 [) r C( k. a4 \
; J\" N4 x7 l& D @os.tvboxnow.com can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and os.tvboxnow.com7 Q1 x* ^6 Q0 x: X; \' R2 q
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Septoria leaf spot infections will also help prevent late blight infections.
