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 1 N: K* s; k% ^4 ^- X6 E
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. % k& m; o4 H l7 htvb now,tvbnow,bttvb K' B. `3 {. q# Z2 Pwww2.tvboxnow.com % o1 t4 `2 Q1 t" aHow to identify Early Blight r. x3 M! E) p! [* l0 x; p; T; U+ `4 d$ U: Y# B8 N# P
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。$ g1 w# l* V& i6 Q
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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 公仔箱論壇1 T0 @: B* k- e2 n% ^
. b' j W4 K! j4 N/ I' N, x9 eTVBNOW 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。in color and form concentric rings, or a 公仔箱論壇7 a, W7 z\" |( A* ?: k) w7 {
+ Z* O3 p; z( [, u5 Z0 ]( }bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 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。# h8 v) t4 E q) q6 @
' Z; _: `! o4 Y( t1 z8 j9 hleaves may fall off. Extensive loss 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。0 t: W$ @. C" q' I# p
8 Q- V/ F' A% E4 yof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.4 Y9 M+ V6 P1 j4 m$ J. J
) N" E7 C. x- U" [# Z% X% \* Vwww2.tvboxnow.com # }* R4 d; X3 F' i9 ?7 |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 Septoria Leaf Spot + X# I+ |1 O& P& J U0 x公仔箱論壇0 Z" ]- [' R2 e9 v
Symptoms of Septoria leaf spot also start % e, n7 _* d" D' V5 L! [! L1 @: M5 a公仔箱論壇 4 f6 [6 M, v, K% S* `( P2 uwww2.tvboxnow.comon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 公仔箱論壇' H5 x: K I; V( K) W7 a6 E
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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. $ v( r P& Y4 A: s4 _ K$ M8 yTVBNOW 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。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 w9 ]- `3 v# E7 M+ N8 c/ x
Small dark spots, the fruiting bodies of the fungus6 o5 t% I. P! M
www2.tvboxnow.com- v1 F! A& o* I , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 7 ]8 |8 U3 d+ C: a9 B! o
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and dead. Stems can also become infected but / [\" W. B: S4 z\" i& cwww2.tvboxnow.com1 g) y+ ~2 B' u$ s0 c& n
infection of fruit is rare.tvb now,tvbnow,bttvb7 i( Q Z4 I. B0 c0 D) a* n+ [4 e
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How to Prevent and Control Early Blight and : O `+ o7 D: V$ v5 F7 a- ^6 E
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Septoria Leaf Spot - h* k4 m" y% i) s4 Q* l公仔箱論壇 0 _0 Z; }: J* U# E2 b* V$ j. n) Bwww2.tvboxnow.comFollow the 12 easy steps below to enjoy a * w9 y, C( p0 [# ?# [+ G yTVBNOW 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 t( i. a9 ~/ y. m% \4 w公仔箱論壇long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. / J/ y7 h, e e1 v0 F) }公仔箱論壇www2.tvboxnow.com* a) k: p0 |0 a& v Weed your garden. Some weeds, . W2 f& d& @: W+ ^% ~www2.tvboxnow.com * C5 Z/ a. i+ h! t Z @! Q( W2 v4 e# iwww2.tvboxnow.comlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb- q$ z0 h: D ^7 O9 D5 F
8 X8 i( A h6 n# Z j3 z Rotate crop locations. Don’t 7 L/ y/ Q0 e; ]+ a公仔箱論壇www2.tvboxnow.com/ F, B9 q6 L. U0 D2 V( n9 r
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas ( u( }) C; W' A
) k8 P/ y6 }9 b/ F- Q; c7 R( F) c+ z公仔箱論壇where tomatoes were grown. : J; z& f0 s- E- q6 y% atvb now,tvbnow,bttvb / B# N# @& H6 p" m4 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. + b7 A: Q# A1 YTVBNOW 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。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of $ H8 l/ d) z: R$ O" g5 |; w+ b
, {0 x. B# G3 F3 Wfungus from the soil to your 7 V( R2 Y* w3 L* Y: A6 x: U1 M ! V: k5 h6 }( h) p+ vTVBNOW 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.; m& f) Q# k6 U( S( J; z; l
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Stake or cage plants to keep them www2.tvboxnow.com. a4 U4 [! w y, }8 F: O
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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 0 P7 B/ }/ W& g. J $ { r# x8 F j/ G5 [cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 6 D0 e; v$ ~; |tvb now,tvbnow,bttvbwww2.tvboxnow.com+ w' N" I7 T, {$ `# v5 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。( D3 Z& @0 E1 V. r1 D
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overhead watering. R- O$ |, L s
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。, p4 E( \2 e0 C8 N+ R) @4 Q' T! r
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 # r! p) @7 {! @& v t+ q3 mwww2.tvboxnow.comwww2.tvboxnow.com3 [5 `# F9 V6 U, w
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are www2.tvboxnow.com/ U/ j9 K4 D7 z% Q- ?% m
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wet. Keep your plants happy and healthy. Weak and stressed ; U% _4 i2 [ p Z% b( m u ' C2 N5 Z5 b0 W6 P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。# n6 o7 _6 s! k% z7 D3 ]. x
' y! T0 U! I$ 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。Remove and destroy or throw away diseased leaves, both off the $ a+ r/ ^7 F1 G1 F. H- w ) w: \' z: G: J ntvb now,tvbnow,bttvbplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 公仔箱論壇' ~: t Y/ \$ o4 b/ @
9 A& @0 {* w1 Y0 @www2.tvboxnow.comenough. If a plant is heavily infected & D& u/ O |, ]\" T% U, }tvb now,tvbnow,bttvb ; ~* e! h5 g1 o* j3 _www2.tvboxnow.com, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used + F# g( s9 e" w5 Uwww2.tvboxnow.comwww2.tvboxnow.com7 [1 O$ {1 Y( v& o& r0 D
to remove diseased leaves should be disinfected before being used on a different plant.' a8 g& {( L: w- b8 [: e
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Spray plants to prevent and control the . R! t1 I7 E' h9 ]8 T# w+ f : S0 N( S) K0 j0 ~- C5 Q- P; |5 r公仔箱論壇spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try : J# v; @' r7 F5 K! Awww2.tvboxnow.com& O9 p$ J& G6 v& c8 ^. |' s) J
GreenCure. % q$ J7 G. X4 \; k' H& y+ v% Q$ s " n1 u. n$ S$ m, K9 l+ Y& f/ g6 a公仔箱論壇公仔箱論壇4 f% \* N- {. U( ~/ K, z6 R- {! g) P
Late Blight on Tomato Plants ( z) _: S$ f# h/ Qwww2.tvboxnow.com4 L" X' Y0 u# A% H6 E# g
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato ; j5 I) H* N3 y! p0 [$ o) m( H& P% 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。 2 e9 [) S. }6 ^# b* f0 x& p公仔箱論壇plants in a garden. Once a tomato plant ) S& B/ \. W, e7 {tvb now,tvbnow,bttvb + w4 Z1 A% B4 g6 B6 Rtvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 9 l2 m9 t4 R, `6 A& }. x/ Ptvb now,tvbnow,bttvb ) |7 o! i+ \/ B. P0 g9 _# Z' K3 u( Iwww2.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 blight& G5 }8 Q: L. {% m( O- F G
( q5 U9 a! S3 z7 W4 i can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and _1 `, l, I4 G* C- r& B! [4 X: a3 F1 G2 @
Septoria leaf spot infections will also help prevent late blight infections.
