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 + s* C+ Z6 L3 Z; g# V5 v6 A6 ]/ F3 V公仔箱論壇 * u0 W3 b6 Y. O3 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。can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 8 v4 e' E9 e' H- F5.39.217.76/ W0 q2 ]. Q7 b4 ]- d {; q
& M" [/ B7 ~5 X. p( B {" 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。How to identify Early Blight * L$ v/ _- D9 v2 z$ Q# q) t 1 X0 x5 v& u4 v, P& ~4 Qtvb now,tvbnow,bttvbSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 6 W9 s+ {% T9 Y; k0 z公仔箱論壇 0 Z% T& N w3 F. ]tvb now,tvbnow,bttvbnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown ; ^4 x% u3 D+ x0 E. c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。( r6 b% G0 V4 G' F7 | s- Y
in color and form concentric rings, or a 7 V$ {* A9 w+ w1 F6 u公仔箱論壇 0 y! x# a7 W7 B+ G$ u) E, d& G公仔箱論壇bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, & K$ r3 ]; r$ k) Q& @6 e7 G5.39.217.76 ; e9 m! L* L% I! t3 n5 p4 Atvb now,tvbnow,bttvbleaves may fall off. Extensive loss tvb now,tvbnow,bttvb9 a& r) G* h) {
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. " B2 k u$ |% w6 R 1 B/ j, s/ b, y8 \+ B 8 a, b0 W R9 H6 g/ Ctvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot* x0 A) g& q# Z& G4 {6 @. W) N
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Symptoms of Septoria leaf spot also start 1 l5 p6 `% W1 L# n公仔箱論壇 ?' v( Y# }" }: x; O# s; J
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 7 U) B$ Z( R6 W, H/ mtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb3 B$ ]* O9 S0 J7 H
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. tvb now,tvbnow,bttvb- i) W' o& T/ Z) {( Q# O
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Small dark spots, the fruiting bodies of the fungus5.39.217.76$ B& M# e6 ^* X' z; m4 g- a
* K* [6 n6 Z: C! F4 q0 _, E% aplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas " k4 K8 @- }% o( }+ Y% H% ?7 ptvb now,tvbnow,bttvb 9 W( s+ i( l4 |2 }where tomatoes were grown. ! Y/ d2 |4 G4 b# s: a7 O0 Utvb now,tvbnow,bttvb , \- \$ l8 e1 t% X- _/ d. f j公仔箱論壇Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.4 j; @1 \3 e! V- x- j& S
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 4 ?! G* R: r6 @4 w( R3 B% F$ `
, T- S6 B: N; U+ a" G5.39.217.76fungus from the soil to your 6 o: V! g) I0 F) d, C: y* K5 e4 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。5.39.217.761 M6 M: A+ h( d# ^) d1 l
plants.! N' `8 L: b- _% ~2 q
% d. ~6 y4 y# e: q! _- GTVBNOW 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 ; [, j; b: r; p; G; C
, O* l" e3 P/ u' l: roff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 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。$ y3 A; i- q+ a8 m' Y- X' }
6 s% m( p# S5 I k# C2 ]4 F% kcages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ! I2 e3 D* X5 W/ _! a3 c ; L. ]. I' K$ g! S公仔箱論壇space above the soil without any leaves. Do not use , ]; s. U' b1 [% X4 o, ]( {1 C. M1 v1 K. _5.39.217.76公仔箱論壇+ i# ], {. m) _5 y0 b; {
overhead watering. - C8 m; F. j* p: O0 B* F0 j5.39.217.76Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. # o6 S9 b8 D. Y# h( s& n公仔箱論壇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 5.39.217.76& R- o: ~* E8 ~' o2 Y. F' g
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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 3 V' r9 W6 w `0 {& \% B( m% x
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wet. Keep your plants happy and healthy. Weak and stressed - { c3 k N5 K1 [4 u5.39.217.76 / q2 T& p3 J7 x\" G\" \tvb now,tvbnow,bttvbplants are more susceptible to disease. / H9 v4 p; M6 m1 Z, Z0 Q C; M" U* R" dRemove and destroy or throw away diseased leaves, both off the ; d! F$ _; x# j& v* @/ g' [. Atvb now,tvbnow,bttvb : l, m5 H0 ?4 ^6 Q( x' M+ U5.39.217.76plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early + s. n' O, e1 ?5 i1 O5.39.217.762 N7 b- H7 [, B1 @3 l
enough. If a plant is heavily infected ! k+ r3 ^7 D7 _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。tvb now,tvbnow,bttvb; I! v; {$ M: [6 q9 @ , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 0 J3 x7 y9 X# t! a9 A# u& R" t4 H9 P$ ~: U7 g5 P% u, _- y
to remove diseased leaves should be disinfected before being used on a different plant. ' y+ o) ~; I5 ]: z4 y% w% E- M
Spray plants to prevent and control the 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。; \- d- t3 C6 H( ?
[4 |& U) Z' @; V) q) fspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try : x1 t( v+ A0 b0 p0 z2 X
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GreenCure.公仔箱論壇' a8 R# u: Z1 D# @3 g
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' m. N- l; V% k6 i; ZLate Blight on Tomato PlantsTVBNOW 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。" V8 m D" O! x6 e7 M7 f& C$ M/ R
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。% M+ O: O3 [, w) H
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 6 ]7 v+ j& n' G/ [7 d( ~5.39.217.76+ f q, v$ f* U- y. i plants in a garden. Once a tomato plant ' H: H) W$ p. k. l+ A* i0 @ 5 R M* q$ ~% |+ Y' z5 ` itvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, G6 a. o. S3 m8 `& w2 P3 Xtvb now,tvbnow,bttvb ; [# B- \9 i4 d Y L" B4 ^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 blight 4 O9 l( {( C* @. _0 R5.39.217.76 * X. }( M3 _3 h s0 R' M; U\" 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。 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 0 _- [, o. N" c& {tvb now,tvbnow,bttvb # z. i7 T' K c, F2 f公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections.
